Current issue

• 2020 Vol.10 No.12 Published:20 December 2020

  Technological Innovation Promotes High-quality Development of Agriculture Li Yan, Ma Jing, Du Yong, Wei Zheng, Liu Rongzhi 2020, 10 (12):  11-13.  DOI: 10.11923/j.issn.2095-4050.cjas2020-0275 Abstract + ( 440 )   HTML ( 10 )   PDF ( 1018KB )   ( 391 ) The way out for agriculture lies in modernization and the key to agricultural modernization lies in the progress of science and technology. In order to implement the strategic deployment of the Fifth Plenary Session of the 19th CPC Central Committee and highlight the importance of agricultural science and technology innovation, the Chinese Association of Agricultural Science Societies successfully held the 2020 China Agricultural and Rural Science and Technology Development Summit Forum and China Modern Agricultural Development Forum in Nanjing on November 20, 2020. The forum, focusing on the development of rice seed industry, the development of high-quality oil plants, the innovation of aquaculture technological model, the prevention and control of bacterial resistance, as well as current scientific and technological development environment and other strategic and key technical problems, invited well-known academicians and experts to exchange new ideas and discuss strategies, and come up with new ways for scientific and technological innovation and agricultural high quality development from multi-levels and multi-angles.

  Modern Agriculture Based on Health and Nutrition Wang Hongwei, Ma Jing, Du Yong, Wei Zheng, Liu Rongzhi 2020, 10 (12):  14-17.  DOI: 10.11923/j.issn.2095-4050.cjas02020-0279 Abstract + ( 361 )   HTML ( 6 )   PDF ( 1035KB )   ( 393 ) Food safety has its source in agricultural products and its base on agriculture, and the quality of agricultural products should be highlighted. To lead agricultural development serving the health and nutritional needs of Chinese residents, on November 20-21, 2020, the China Association of Agricultural Science Societies held the 2020 China Agricultural Rural Science and Technology Development Summit Forum and China Modern Agricultural Development Forum in Nanjing, which has a sub-forum on Health, Nutrition and Modern Agriculture. The sub-forum, focusing on six themes of the dietary nutrition characteristics of Chinese residents and food science and technology innovation, developing green urban agriculture and serving urban healthy life, high-quality dairy engineering, oats’ role and mechanism in lowering blood sugar, China's nutritional and healthy food resources development, and nutrition environment shaping healthy and efficient animal production, invited well-known experts in the field to exchange ideas on nutritional health issues, explore the dietary structure more suitable for Chinese residents, and look forward to the role of modern agricultural development in elevating residents’ nutritional level and health in China.

  The Cultivation of New Farmers to Promote Rural Revitalization Under the Background of Rural “Entrepreneurship and Innovation” Sun Yue, Yu Jianfei 2020, 10 (12):  18-20.  DOI: 10.11923/j.issn.2095-4050.cjas2020-0274 Abstract + ( 572 )   HTML ( 14 )   PDF ( 1017KB )   ( 869 ) In recent years, China's rural “entrepreneurship and innovation” has achieved remarkable results in implementing the Rural Revitalization Strategy, enhancing poverty alleviation, and promoting agricultural industrial upgrading and development, but there are still problems and shortcomings. This paper analyzes the typical problems existing in the New Farmers’ entrepreneurship and innovation, puts forward effective measures to lead the Rural Revitalization by cultivating all kinds of New Farmers under the background of rural “entrepreneurship and innovation”, and looks forward to the leading and exemplary role of New Farmers in rural “entrepreneurship and innovation” in the future.

  Rice Grain Shape Genes: Research Progress and Application Kang Xuemeng, Ma Mengying, Gong Wenjing, Duan Haiyan 2020, 10 (12):  21-25.  DOI: 10.11923/j.issn.2095-4050.cjas20190900184 Abstract + ( 709 )   HTML ( 14 )   PDF ( 1252KB )   ( 595 ) Rice (Oryza sativa L.) grain shape includes a series of agronomic traits such as grain length, grain width and length to width ratio, which is one of the most important factors affecting the quality and yield of rice. With the development of functional genomics and molecular marker technology, more and more grain shape genes are gradually located and cloned. This paper mainly summarizes the genes that have been cloned in relation to rice grain shape: grain length gene: GS3, GL7, GL3.3, etc.; grain width gene: GW2, GW5, GS5, etc.; length to width ratio gene: GW7, TGW3, GS2, etc., and the relationship among these genes and their applications in production. At the same time, the problems of rice grain shape gene in molecular plant breeding are pointed out and corresponding suggestions are put forward.

  Application Analysis of Entropy Weight Method in Regional Tests of Crops: Taking Wheat as an Example Jing Jinlian, An Xiaodong, Liu Lingling, Li Shiping, Zheng Qinping, Huang libo, Mao Qiaoqiao 2020, 10 (12):  26-33.  DOI: 10.11923/j.issn.2095-4050.cjas20191000210 Abstract + ( 609 )   HTML ( 14 )   PDF ( 1420KB )   ( 272 ) The aim of the crop regional test is to identify the production potential, stable yield and regional adaptability of new varieties (or strains). Though the field investigations and indoor plant laboratory tests are numerous, the conclusions are always to rank the yield and describe other characters, lacking an overall score representing the comprehensive character performance of the strains. This study introduced the entropy weight method of wheat regional test, and set up a comprehensive performance evaluation index system of wheat, including the target layer, criterion layer and index layer. And the target layer is the comprehensive character expression of the tested materials. The criterion layer includes field recorded characters, grain characters and yield characters, and the index layer is composed of 16 indexes. By calculating the weight value and transformation value of each index, the score value of each index could be obtained. The score value represents the comprehensive performance of a strain in the regional test, which could be used for the comparison of varieties (strains). Thus, the entropy weight method can be an objective evaluation method in the regional test of crops.

  Effects of High Temperature Stress on Summer Maize and Solutions in Huanghuai Region Guo Zhihui, Liu Peng, Guo Lianghai, Cui Huini, Gao Jiansheng, Guo Jianjun, Dong Guohao 2020, 10 (12):  34-37.  DOI: 10.11923/j.issn.2095-4050.cjas20191000229 Abstract + ( 443 )   HTML ( 21 )   PDF ( 1080KB )   ( 361 ) In this paper, the effects of high temperature stress on maize production were analyzed from six aspects including yield and dry matter accumulation, photosynthesis, pollen, pollination and fertilization, seed grout, seed quality and endogenous hormones. The results showed that high temperature affected pollination and seed production, dry matter accumulation and endogenous hormone content of maize, decreased the photosynthetic rate and seed filling rate, thus decreased the seed yield. In addition, high temperature increased the protein content in the seeds, so that the starch and fat content decreased, affecting the quality of the seeds. Through breeding and selection of resistant varieties to high temperature, with the use of exogenous hormones and micro fertilizer, and the adoption of appropriate late sowing and appropriate water and fertilizer cultivation measures, corn efficient production with high temperature resistance could be achieved.

  Whole Genome Resequencing in Soybean Breeding: Research Progress Zhao Haihong, Guo Tai, Wang Zhixin, Zheng Wei, Li Candong, Xu Jiefei, Zhang Zhenyu, Zhao Xingqi, Wang Shiqiang 2020, 10 (12):  38-41.  DOI: 10.11923/j.issn.2095-4050.cjas19020011 Abstract + ( 610 )   HTML ( 17 )   PDF ( 1106KB )   ( 503 ) Soybean is one of the most important oil crops in the world. With the rapid development and the wide application of gene sequencing technology, soybean breeding research has been deeply affected. This paper briefly described the main methods of gene sequencing and the whole genome resequencing application in soybean breeding and genetic transformation research, summarized the whole genome resequencing to study the molecular mechanisms of soybean breeding and disease development from the perspective of functions and structures of functional genes through discovering mutation sites, revealing evolutionary relationships, and mining functional genes. The study could provide certain reference for the research and application of the gene sequencing technology in the future.

  Control Effect of Three Herbicides on Dryland Weeds and Growth of Flue-cured Tobacco Xiang Deming, Tian Minghui, Zhang Mingfa, Chen Qianfeng, Zhang Sheng, Chen Minggang 2020, 10 (12):  42-48.  DOI: 10.11923/j.issn.2095-4050.cjas20191000232 Abstract + ( 1056 )   HTML ( 19 )   PDF ( 1288KB )   ( 918 ) The paper aims to solve the problems of severely influenced flue-cured tobacco production by weeds and low efficient artificial weeding. Based on the investigation of weed community in the field of flue-cured tobacco in Xiangxi Autonomous Prefecture, three herbicides including dimethyl-pentaphenol, sulfonyl-sulfonyl and jinquaoling were selected for weed control experiments. The results showed that the seven dominant species of upland weeds in flue-cured tobacco were Artemisia lavanduaefolia, Eclipta prostrata, Xanthium sibiricum, Polygonum lapathifolium, Sids alnifolia, Echinchloa colonum and Lepochloa chinensis. Before transplanting tobacco seedlings, the use of 33% dimethoxypene emulsion 1500-3000 mL/hm 2 had a good control effect on annual single and dicotyledon weeds, but the control effect on perennial weeds was not ideal, and it was harmful to tobacco seedlings and inhibited their growth and development. As a pre-bud herbicide, it should be applied carefully in the production of tobacco. After removing the film from flue-cured tobacco, a directional spray of 25% sulsulfuron 52.5 g/hm2 was applied on ridge furrow. Single application could effectively prevent single and dicotyledon weeds except radix aconitae, and had little effect on the growth and development of flue-cured tobacco. After removing the film of flue-cured tobacco, 8.8% jingquehaling 525 mL/hm2 was used, which had good control effect on single cotyledon weeds and a long duration of efficacy, while on dicotyledon weeds, the growth and development of flue-cured tobacco was safe. The synergistic effect was not obvious when sulprosulfuron was mixed with quinoxaline. Once herbicide harm is found in the tobacco seedlings after transplanting to the seedling stage, the effects of pesticide damage can be alleviated or removed by changing the seedlings.

  Dietary Exposure Safety Survey on Fungicide Residue in Apple: Yantai 2016-2018 Gong Chunbo, Dong Fengguang, Zheng Zhong, Wang Zhaoxia 2020, 10 (12):  49-56.  DOI: 10.11923/j.issn.2095-4050.cjas20190700139 Abstract + ( 552 )   HTML ( 6 )   PDF ( 1285KB )   ( 319 ) To investigate the level of fungicide residue in apple of Yantai, and assess the dietary exposure risk to residents, 718 apple samples were randomly selected in October from 2016 to 2018, covering orchards, refrigeration storage and supermarkets, and 18 fungicides were tested. Hazard index was calculated based on Monte Carlo to assess the dietary exposure risk of fungicide residue in apples. The study showed that 6 fungicides were detected in apples of Yantai, the total positive rate was 53.26%, the maximum was carbendazim of 40.39% and minimum was tebuconazole of 0.14%. The positive rate of 2016-2018 was 38.43%, 67.93%, 38.43%, and the year to year difference was significant (α=0.01). The mean value of the 6 fungicides’ residue was from 1.03 μg/kg to 15.4 μg/kg, significantly different between each group (α=0.05). None of the residue of tebuconazole, iprodione, thiophanate-methyl, carbendazim measured exceeded the GB Maximum Residue Limit (MRL), but prochloraz and difenoconazole content of individual sample exceeded MRL, with a ratio of 0.28%. The detect frequency of the six fungicides was 385 times, carbendazim was detected 290 times, which was the highest, multiple fungicides’ residue, at most five, was detected in the same sample. The estimated daily intake (EDI) mean value of the 6 fungicides was different in each population group, higher in female group than that in male group; the EDI had a negative correlation trend with age in children and teenage group, five fungicides’ hazard quotient (HQ) was less than one except in the 2-6 years old group; the probability rate of prochloraz HQ exceeding one varied, which was the highest in the 2-6 years old group, the HQ of carbendazim and difenoconazole exceeding one only found in the 2-6 years old group, which was 0.01% and 0.02%, respectively. In general, the hazard index of long-term dietary exposure risk rate of apple is 0.30%-66%, higher for female than for male, and higher for intake group than for the total, the 2-6 years old group and 7-10 years old group are the most vulnerable one. Fungicides’ residue is relatively low in Yantai apples and belongs to the acceptable level to residents, and prochloraz is the major hazard factor of fungicide dietary exposure risk of apple, particularly to children and teens.

  Comparison of Phenolic Content and Antioxidant Capacity in Fruit Parts of Different Pomegranate Varieties Zhang Yan, Zou Qinyan, Wu Shuai, Zhao Zunle, Yan Xin, Zhang Lihua, Tan Wei 2020, 10 (12):  57-67.  DOI: 10.11923/j.issn.2095-4050.cjas20191200293 Abstract + ( 617 )   HTML ( 7 )   PDF ( 1541KB )   ( 484 ) To analyze the phenolic characteristics of different pomegranate varieties and screen the varieties with high phenols and strong antioxidant capacity, 13 pomegranate varieties in Zaozhuang area were used as materials, the contents of total phenols, tannins, total flavonoids, proanthocyanidins, flavanols, etc in pericarp, juice and seeds were determined by colorimetry, and the antioxidant capacity were analyzed by DPPH method. There were significant differences in phenols among different varieties and different parts of the same variety, but the content of phenols in pericarp was the highest. ‘Ruanzi Xiehuatian’ not only had the highest contents of total phenols, tannins and total flavonoids in pericarp but also had the highest contents of total phenols, proanthocyanidins and flavanols in seeds. The contents of total phenol and tannin in juice of ‘Xiaoqingpisuan’ were the highest. There was a significantly positive correlation between antioxidant capacity and the contents of total phenols, tannins and total flavonoids in pericarp and seeds. The variety with high contents also had strong antioxidant capacity. In principal component analysis, the five or six phenolic substances indexes in the peel, seed and fruit juice were simplified to two principal component values to measure the phenolic substances content. The principal component values in different parts of different pomegranate varieties were different. The principal component values of ‘Ruanzi Xiehuatian’ ranked at the top 5, which was an excellent variety worth of promotion and further development and utilization. The content of phenolic substances in pomegranate peel was high, so the residue of pomegranate peel could be comprehensively utilized to develop related products.

  The Recovery Effect of 8 Medicaments on Watermelon Under Waterlogging Stress: A Preliminary Study Shu Xiuyu, Ma Jiangli, Li Changgen, Sun Xingxiang 2020, 10 (12):  68-72.  DOI: 10.11923/j.issn.2095-4050.cjas2020-0034 Abstract + ( 499 )   HTML ( 5 )   PDF ( 1574KB )   ( 515 ) The paper aims to solve the problem that watermelons are vulnerable to waterlogging stress at the swelling stage in production. The watermelon cultivar planted in Yancheng was used as the material, 8 kinds of medicaments were spayed to alleviate the damage of watermelon under waterlogging stress, and their effects on the yield, quality and physiological indexes of watermelons were compared. The results showed that rapid growth had the best recovery effect in terms of single fruit weight and yield, with significant increase of 27.22% and 27.31%, respectively. To a certain extent, foliar-spayed medicaments such as gene activator, epiglottifolin and cytokinin could effectively alleviate the damage of waterlogging stress on watermelon, inhibit MDA production in leaves (the most significant reducing effect was achieved by epiglottifolin as 54.01%), enhance PAL activity (the best increasing effect was achieved by cytokinin as 72.22%) and root vitality (the best increasing effect was achieved by gene activator as 485.16%), and maintain the plant’s ability to absorb water and nutrients well.

  Effects of Planting Methods on Yield and Growth of Fresh Faba Bean Li Bo, Shi Xiaoxu, Liu Jian, Yang Meiying, Wang Xuejun, Wei Yafeng 2020, 10 (12):  73-77.  DOI: 10.11923/j.issn.2095-4050.cjas2020-0113 Abstract + ( 425 )   HTML ( 11 )   PDF ( 1242KB )   ( 503 ) In order to study the effect of different planting methods on the yield and growth of fresh faba bean, the effects of ridge cropping, flat cropping, ridge cropping with mulching film, ridge cropping with mulching film and straw, flat cropping with mulching film, flat cropping with mulching film and straw on the yield and growth of faba bean were studied. The results showed that, ridge cropping, ridge cropping with mulching film, ridge cropping with mulching film and straw could increase soil temperature and humidity, as well as the dry matter accumulation and the yield of fresh faba bean. The study could provide a basis for high yield cultivation of fresh faba bean.

  The Carbon Footprint of the Mode of Wheat-Maize Full-Mechanized Green Harvest in Huaibei Plain of Anhui Province Wang Guangyu, Zhu Lijun, Zhang Yang 2020, 10 (12):  78-84.  DOI: 10.11923/j.issn.2095-4050.cjas2020-0075 Abstract + ( 494 )   HTML ( 20 )   PDF ( 1422KB )   ( 507 ) The study revealed the carbon emission mechanism of the mode of wheat-maize continuous cropping, aiming to provide theoretical references for the low-carbon agriculture based on data from farmers’ survey in the demonstration region of science & technology project for food production in Huaibei Plain of Anhui Province. It analyzed the difference of carbon footprint per unit area and its components, and carbon footprint per unit output of farmland between innovative and traditional mode of wheat-maize continuous cropping with life-cycle approach (LCA), and found the relationship between the carbon footprint of innovative mode and cultivation scale. The results indicate that the value of carbon footprint of the traditional mode per unit area is 2159.50 kg(CO2-eq)/hm2, 2.11% higher than that of the innovative mode. The contribution sequence of carbon footprint of the two modes is consistent, in an order of: fertilizer>N2O>diesel>seed>electricity>pesticide. The value of carbon footprint per unit output of the traditional mode is 0.1402 kg(CO2-eq)/kg, 25.18% higher than that of the innovative mode. The value of carbon footprint of the innovative model per unit area is significantly and negatively correlated with the cultivation scale. In conclusion, the innovative mode has certain emission reduction, chemical fertilizer is the main influencing factor on the carbon emission of the mode, and the cultivation scale also has effect on carbon emission.

  The Influencing Factors of Residents' Willingness to Underused Urban Residential Land Reconstruction in Underdeveloped Areas: An Empirical Research Based on SEM Zhang Xinxin, Bi Rutian, Tian Huiwen, Liu Huifang 2020, 10 (12):  85-93.  DOI: 10.11923/j.issn.2095-4050.cjas2020-0057 Abstract + ( 541 )   HTML ( 7 )   PDF ( 1469KB )   ( 323 ) Based on the complex property right problems of the reconstruction of underused land in underdeveloped areas, we explored the main factors that affected residents’ participation in the reconstruction, aiming to promote the construction of new urbanization. Based on the distributed cognition theory and combined with the survey data of 295 residents in the study area, the structural equation modeling was used to verify the theoretical model and quantitative analysis. The results show that the overall fitting effect of the model is fine, the individual force and cultural force are positively correlated with the willingness of residents, the regional force is negatively correlated with the willingness of residents. The willingness of residents to reconstruct is significantly affected by the cognitive level, the cultural force is the essential level, the individual force is the key level and the regional force is the important level. The average monthly income is the greatest influence factor on the individual force, the average living space per person and building age are the greatest influence factors on the regional force, and the relocation compensation satisfaction and residents’ deep attachment to land are the greatest influence factors on the cultural force. The research result provides scientific basis for the underused urban residential land readjustment in underdeveloped areas.

  Leaf Age Model of Spring Maize Based on Equivalent Accumulated Temperature Li Zhonghui, Yuan Fuxiang, Guo Chunming, Li Junwei, Wu Zhibin 2020, 10 (12):  94-97.  DOI: 10.11923/j.issn.2095-4050.cjas20190900196 Abstract + ( 684 )   HTML ( 21 )   PDF ( 1359KB )   ( 571 ) To know the leaf age condition of maize in advance, can not only make the farmers prepare in advance for using leaf age fertilization, but also clarify the ear differentiation of maize, which is of great significance for precise field management in maize production. Based on the experimental data of five spring maize field tests from 2012 to 2014 in Jiamusi, Lishu and Yushu station, the relationship between leaf age and equivalent accumulated temperature was analyzed by using equivalent accumulated temperature model. The leaf age growth model of spring maize was established to realize the quantitative growth of maize leaf simulation. The model passed the significance test well. Under the condition of no drought, the model could be used to simulate the leaf age of ‘Xianyu 335’ in Heilongjiang and Jilin, and predict the leaf age of spring maize according to weather forecast.

  Rice-frog Planting and Raising Mode and Its Sustainable Development Strategy Li Xinghua, Tu Junming, Chen Zhanpeng, Zhou Qiang, Wang Huan, Zhang Sheng, Cai Xingxing, Chen Jie, Zhou Nan 2020, 10 (12):  98-103.  DOI: 10.11923/j.issn.2095-4050.cjas19010033 Abstract + ( 561 )   HTML ( 13 )   PDF ( 1307KB )   ( 720 ) Rice-frog planting and raising is a new mode of paddy comprehensive planting and breeding, it has been rapidly developed in rice planting area in south China and the Yangtze River basin, and has formed a certain scale in recent years. In this paper, we introduced the technical characteristics of the mode, analyzed the economic, ecological and social benefits, summarized the development problems and put forward some development strategies of rice-frog planting and raising mode by investigation and demonstration experiment. The technical characteristics of rice-frog planting and raising are mainly paddy transformation, rice planting, frog seedling breeding and releasing and frog feeding and management, etc. The development problems of the mode are mainly imperfect market mechanism, low degree of scale development, low added value of products, preferring frog to rice, and the overuse of frog medicine and feed. Finally, we propose suggestions for improving the rice-frog planting and raising mode, such as adjusting managements to local conditions, optimizing feeding and regulating water and fertilizer utilization, upgrading the mode and extending the industrial chain, which can provide a basis for the sustainable development of rice-frog planting and raising mode.

  Development Effectiveness and Industrial Revitalization Strategy of Potato Industry in Tengzhou, Shandong Yang Ning, Wang Yuehua, Shi Li, Qin Jing, Wang Luocai, Zheng Guoxi, Xia Zhenzhen 2020, 10 (12):  104-109.  DOI: 10.11923/j.issn.2095-4050.cjas20191100277 Abstract + ( 545 )   HTML ( 18 )   PDF ( 1076KB )   ( 855 ) To give full play to the comparative advantage and demonstration leading role of Tengzhou potato, and speed up the brand awareness and influence of Tengzhou potato, the study analyzed the development effectiveness and industrial revitalization strategy of Tengzhou potato industry in recent years. The article summarized the green development of the potato industry in Tengzhou, and pointed out the problems in the industrial development, including geographical factors restricting the strategic development of potato staple food, the insufficient research on variety breeding and cultivating technology, the relatively low level of scale operation and management, the contradiction between the expansion of planting area and economic benefits, and the frequency of abnormal climate. In view of these restricting factors, the article put forward some countermeasures, such as paying attention to the integration development of primary, secondary and tertiary industries, increasing variety breeding, developing green and sustainable technology mode, deepening rural reform, building modern agricultural management system, improving market service mechanism, increasing financial policy support, and enhancing abnormal climate monitoring and early warning.

  Study on Agricultural Science and Technology Extension Mode of Agricultural Carnival in China Yang Yu, Zhang Tianzhu, Lu Wanying, Wei Ping, Chen Xiaowen 2020, 10 (12):  110-114.  DOI: 10.11923/j.issn.2095-4050.cjas20190500047 Abstract + ( 520 )   HTML ( 6 )   PDF ( 1121KB )   ( 448 ) The major research methods adopted in this paper are field survey and file analysis, and models of agricultural science and technology extension along with their strengths and weaknesses at home and abroad are taken as a reference, thus, this paper puts forward a new model to reconstruct agricultural science and technology extension in concept, method, content, subject and object. Taking three cases of Guangxi Yulin Agricultural Carnival, Hebei Nanhe Agricultural Carnival, Sichuan Meishan Agricultural Carnival as the research subjects, which represent the region and the industry, the findings suggest that the Agricultural Carnival not only proves to be a breakthrough of the extension in concept, methods, content and the subject, but also receives a good response in practice. At the same time, the Agricultural Carnival helps solve problems, to a certain extent, in traditional agricultural science and technology extension in China, such as high cost, low efficiency, decreased timeliness, narrow audience, and poor sustainability. The emergence of agricultural carnival provides new ideas and new methods for the development of agricultural extension in China.

  The Development of High-quality Farmers in Fujian Province: A Tracking Analysis Zhang Weiqiang 2020, 10 (12):  115-120.  DOI: 10.11923/j.issn.2095-4050.cjas2020-0093 Abstract + ( 288 )   HTML ( 5 )   PDF ( 1269KB )   ( 343 ) To reflect the development of high-quality farmers in Fujian and explore more effective ways to cultivate high-quality farmers, the study tracked and investigated the comprehensive data about high-quality farmers, including the gender ratio, age structure, education level and others in Fujian from 2015 to 2018, based on which, it presented the development status of new agricultural business operators, such as operators of family farms, and principals of farm cooperatives. At the same time, the development characteristics of the key groups of high-quality farmers in Fujian were compared. The restricting factors of current development of high-quality farmers were analyzed from the aspects of education level, cultivating supply and demand, contradicts between production and education, and supporting policies, and then, the author put forward corresponding suggestions in terms of speeding up the cultivation of high-quality farmers in Fujian, building a lifelong learning system, exploring and cultivating new agricultural business models, promoting online and offline integration, and establishing supporting policies.

  Research on the Reform of China's Rural Land System from the 18th National Congress of the CPC She Yue, Liu Zhongxiu 2020, 10 (12):  121-124.  DOI: 10.11923/j.issn.2095-4050.cjas2020-0051 Abstract + ( 448 )   HTML ( 11 )   PDF ( 1038KB )   ( 683 ) Since the 18th national congress of the communist party of China (CPC), the CPC central committee with comrade Xi Jinping at the core has firmly united and led the people of all ethnic groups in introducing a series of major guidelines and policies on deepening the reform of the land system. In order to study the innovative development of China's rural land policies since the 18th CPC national congress, this research uses induction and dialectics method, systematically studies the major policies and principles of China's rural land in the new era, and summarizes the achievement of land policy adjustment, so as to guide the practice of ‘agriculture, rural areas and farmers’. Since the 18th national congress of the CPC, we have steadily promoted the confirmation, registration and certification of land rights, and established and improved the system of ‘dividing the three rights’ of contracted land. We have explored the reform of ‘dividing the three rights’ of house sites, and established the system of bringing rural construction land into the market. We have made it clear that the period of land contracting should be extended for another 30 years, so that farmers can have a ‘long-term peace of mind’. Practical results show that, historic achievements have been made in China’s agricultural and rural development, and historic changes have taken place in agricultural and rural undertakings. And strong support has been provided for the overall development of the cause of the party and the country. Socialism with Chinese characteristics has entered a new stage of development.