Welcome to Journal of Agriculture,

Top downloaded

  • Published in last 1 year | In last 2 years| In last 3 years| All| Most Downloaded in Recent Month | Most Downloaded in Recent Year|

    In last 3 years
    Please wait a minute...
    For Selected: Toggle Thumbnails
    Meteorological Factors on Freezing Injury of Amygdalus communis During Overwintering in Yingjisha of Xinjiang
    Kerimu ABASI, Nuerpatiman MAIMAITIREYIM, MENG Fanxue, CHEN Gang, Patiman ABUDUAINI
    Journal of Agriculture    2022, 12 (2): 31-35.   DOI: 10.11923/j.issn.2095-4050.cjas20191100279
    Abstract + (2050)    HTML (732)    PDF (1186KB) (10102)      

    By using the basic meteorological data of 2001 to 2019 from Yingjisha national meteorological observing station and the phenological observation data and freezing injury data, the freezing rate of flower bud and yield of Amygdalus communis were analyzed. Combined with mathematical statistics, the meteorological factors causing frozen flower bud during overwintering period of Amygdalus communis in Yingjisha were studied. The results showed that the lowest air temperature in winter and its lasting days, the lowest land surface temperature and frozen earth depth caused the freezing of Amygdalus communis buds, but there was no obvious impact of the maximum snow depth of winter and its lasting days and winter precipitation. When the lowest temperature was -23℃ to -18℃, its lasting days and the lowest land surface temperature were the main factors causing frozen flower buds.

    Aquaculture Wastewater Pollution and Purification Technology in China: Research Progress
    WANG Yuqin, ZHENG Yao, QIAN Xinyu, YANG Xiaoxi, CHEN Jiazhang, WU Wei
    Journal of Agriculture    2022, 12 (3): 65-70.   DOI: 10.11923/j.issn.2095-4050.cjas20200300088
    Abstract + (700)    HTML (32)    PDF (1108KB) (1417)      

    Wastewater from aquaculture has attracted wide attention as one of the sources of agricultural non-point source pollution, and the management of aquaculture wastewater has become a current research hotspot. In order to understand the mechanism of aquaculture wastewater purification and enhance the purification technology efficiency, this paper introduces the current status, hazards, and related control policies of aquaculture pollution in China, and reviews the aquaculture wastewater purification technologies developed in the past two decades. Finally, the research direction of aquaculture wastewater is discussed to put forward the possibility of strengthening the sedimentation unit, and using new materials and microorganisms to intensify the purification system.

    Polyploidy Induction by Colchicine in Forest Trees: Research Progress
    LI Yuling, YAN Shaobo, MAO Xiuhong, WANG Cuiyan, WANG Jinna, LIU Cuilan, ZHANG Qian, QIAO Yanhui
    Journal of Agriculture    2022, 12 (8): 55-61.   DOI: 10.11923/j.issn.2095-4050.cjas2021-0077
    Abstract + (568)    HTML (7)    PDF (1205KB) (1013)      

    Polyploid breeding is an important way to create and select new varieties of plants. Colchicine is the most widely used and effective reagent for plant polyploidy induction at present. In this paper, the research progress of colchicine in forest polyploidy induction in recent years is reviewed, and the influencing factors such as colchicine concentration, induction time, treatment methods and the methods for identifying polyploidy are summarized. It is pointed out that there are some problems in forest polyploidy, such as tedious and slow separation and purification of chimeras, urgent development requirement of new inducers, long evaluation period of forest polyploidy, and insufficient research on molecular mechanism of autopolyploid. Then, corresponding solutions and suggestions are given. The purpose of this review is to provide theoretical reference for forest polyploidy breeding.

    The Breeding of New Edible Soybean Variety ‘HeNong 78’
    Guo Meiling, Guo Tai, Wang Zhixin, Zheng Wei, Li Candong, Zhao Haihong, Zhang Zhenyu, Xu Jiefei
    Journal of Agriculture    2021, 11 (11): 6-10.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0024
    Abstract + (1253)    HTML (6)    PDF (1231KB) (920)      

    To promote the production of edible soybean, a high protein content and high yield variety ‘HeNong78’ was bred by simple backcrossing and molecular design breeding with the female parent of ‘HeiNong43’ and the male parent of (‘HeiNong54’ × ‘HeiNong43’) F1. ‘HeNong 78’ was validated and promoted by Heilongjiang Crop Committee in 2019. The 100-grain weight of ‘HeNong78’ ranged from 22 to 23 g, the protein content was 41.75% and the oil content was 20.42%. The average yield of regional trial was 2726.8 kg/hm2, 9.6% higher than that of the control variety ‘SuiNong26’. The average yield of production test was 3009.1 kg/hm2, 11.5% higher than that of ‘SuiNong26’. ‘HeNong78’ had medium resistance to gray spot (MR) and resistance to the SMVⅠ(R), its growing days was 120 and 2450℃ active accumulated temperature above 10℃ was needed. The variety is suitable for planting in the second accumulated temperate zone of Heilongjiang and areas with the same condition in other provinces. This variety integrates the cultivation techniques of high yield and quality assurance, and its breeding has broken the bottleneck of edible soybean production and could provide valuable experiences.

    Brand Building of Agricultural Products in China: A Review
    WANG Hongqin, WANG Lijia, LIU Chen, JIANG Yanling
    Journal of Agriculture    2022, 12 (12): 76-80.   DOI: 10.11923/j.issn.2095-4050.cjas2021-0142
    Abstract + (698)    HTML (22)    PDF (985KB) (800)      

    The brand building of agricultural products is an important symbol of the construction of modern agriculture, which is conducive to promoting the transformation and upgrading of traditional agriculture to modern agriculture, and can provide a huge space for the development of regional agriculture and other industries. This study aims to fully discuss the research status of brand building of agricultural products in China by elaborating the role of branding of agricultural products and reviewing related studies. The study summarized the function of branding in improving the quality and competitiveness of Chinese agricultural products, promoting the industrialization development of agricultural products and boosting the revitalization of rural industries. It also discussed the brand building of ‘three products and one indication’ agricultural products (pollution-free agricultural products, green food, organic agricultural products and geographical indication of agricultural products), the brand building of characteristic agricultural products, and the regional public brand building of agricultural products; and explored the regional characteristics and existing problems of agricultural products’ brand building. Suggestions were put forward targeting the existing problems in order to provide reference for brand building of agricultural products, agricultural revitalization through quality and rural revitalization.

    Form and Valence Evaluation of Heavy Metal Chromium in Soil: A Review
    ZHAO Shaoting, LI Jianmin, DU Yu
    Journal of Agriculture    2022, 12 (4): 24-28.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0284
    Abstract + (383)    HTML (16)    PDF (1274KB) (772)      

    Soil environmental quality standards in China have established the limit for total chromium content in soil. To understand the effects of heavy metal chromium on ecological environment and soil organism, it is necessary to analyze different forms and valences of chromium in detail. In this study, the occurrence form, and the migration and transformation of heavy metal chromium in soil were discussed, especially the determination methods of different forms and valences of chromium. Sequential extraction method is still the main method for form analysis of chromium in soil. Compared with the solid-liquid extraction method and the technology of chromium separation, enrichment and determination based on soil liquid samples, direct solid sample analysis does not require sample pretreatment and avoids the form transformation of the element. In the future, more rapid and simple methods for determining heavy metals in soil will be developed.

    Factors Influencing the Pricing of High-quality Agricultural Products and the Pricing Strategy
    LIU Rui, NIE Ying, SUN Yongqi, SHENG Jiping, HUANG Jiazhang, WANG Pei, SUN Junmao
    Journal of Agriculture    2022, 12 (3): 86-91.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0037
    Abstract + (527)    HTML (18)    PDF (1881KB) (711)      

    With the rapid development of domestic economy, on the basis of solving the problem of the basic needs for food and clothing, people have gradually raised their requirements for the quality of agricultural products in recent years. However, the phenomena of unreasonable pricing are often found in the development of high-quality agricultural products’ market. Pricing of agricultural products is a complex topic, whether the high-quality agricultural products could be priced reasonably or not will directly impact the total production of agricultural products, profits of producers and individual behaviors of consumers. Aiming to provide theoretical reference for promoting prosperous development of agricultural products’ market, the influencing factors on the pricing of agricultural products are analyzed from the aspects of products, markets, producers, currency, policy and global environment. Besides, it is suggested that the quality system for evaluating agricultural products should be improved, the brand image should be established and grading pricing strategy should be implemented.

    Research Advances on Plant DNA Methylation
    Chen Zihan, Ren Jianguo, Wang Junli
    Journal of Agriculture    2021, 11 (11): 88-97.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0152
    Abstract + (553)    HTML (12)    PDF (1368KB) (707)      

    DNA methylation is an important epigenetic modification that can effectively regulate genome stability. In order to understand the impact of DNA methylation on plant growth and development, this article summarizes plant DNA methylation patterns, concludes the physiological functions of plant DNA methylation, and reviews the research methods of DNA methylation. At last, this article sums up the problems in the study of plant DNA methylation and points out the research directions in the future, providing a theoretical basis for subsequent plant genome research.

    Forage Value and Ecological Function of Pennietum sp.: Research Progress
    WANG Jingyu, WANG Wei, GAO Xinmei, XU Xingjian, FU Ying, LI Wurijimusi, WANG Yingjie, WU Rilige, GUO Longyu, ZHANG Shuyan
    Journal of Agriculture    2023, 13 (3): 76-81.   DOI: 10.11923/j.issn.2095-4050.cjas2022-0010
    Abstract + (198)    HTML (3)    PDF (1110KB) (689)      

    This paper summarizes the research status of Pennietum sp. from the biological and nutritional characteristics, feeding value, and ecological management and restoration effect, sums up the value advantages of Pennietum sp. in animal husbandry as well as its application potential in Horqin sandy land treatment, and analyzes the existing problems in the current research of Pennietum sp. According to the results, the degradation of Horqin sandy land is serious and the ecology is fragile. Pennietum sp. has not only a good restoration effect on sandy soil, degraded soil and barren soil, but also a good utilization value for the ecological improvement of Horqin sandy land. According to the characteristics of high yield, excellent quality, strong stress resistance, developed roots and wide application of Pennietum sp., it is necessary to accelerate the integration of fungus grass industry and modern agricultural economy, so as to improve the ecological environment and contribute to the rural revitalization.

    Development Status of Slow/Controlled Release Fertilizers and Their Application Prospects in Agricultural Production
    ZHAI Caijiao, CUI Shiyou, ZHANG Jiao, HU Anyong, HUANG Zhaoping, CHENG Yujing
    Journal of Agriculture    2022, 12 (1): 22-27.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0028
    Abstract + (662)    HTML (34)    PDF (1140KB) (681)      

    The important direction of fertilizer development in the 21st century is on slow/controlled release fertilizers which are of great significance to maintain China’s food security, improve the utilization rate of fertilizers, and realize the coordinated development of agricultural production and ecology. Meanwhile, slow/controlled release fertilizers can save cost and energy, and increase efficiency and reduce emissions. Based on the summary of the definition, action mechanism and research status of slow/controlled release fertilizers, we expounded the application effects of slow/controlled release fertilizers in agricultural production and the existing problems in their popularization and application. Then we put forward some corresponding countermeasures and suggestions. Finally, the development prospects of slow/controlled release fertilizers were discussed. The results will provide a theoretical basis for the study on slow/controlled release fertilizers.

    Research Progress of Microbial Fertilizer in Facility Vegetable Production
    Wang Yawen, Shi Huifang, Zhang Peng, Hao Zhe, Yan Xiongfei
    Journal of Agriculture    2021, 11 (11): 27-32.   DOI: 10.11923/j.issn.2095-4050.casb2021-0063
    Abstract + (445)    HTML (17)    PDF (1207KB) (679)      

    Microbial fertilizer is a new kind of environment-friendly biological fertilizer containing active substances, which is developed according to the principle of soil ecology and plant nutrition and modern organic sustainable development agriculture. It can improve the physical and chemical properties of soil, the crop growth and the quality of fruits and vegetables. There is a good correlation among soil, crop and microorganism, and the correlation has a positive role in the sustainable development of modern agriculture. In this paper, the research progress of microbial fertilizer, such as promoting the growth of vegetable crops, improving fruit quality, enhancing the resistance of vegetable crops and ameliorating the soil environment were reviewed, meanwhile the application prospects of microbial fertilizer were discussed.

    Wheat Lodging: Cause and Mechanism and Its Effect on Wheat Yield and Quality
    SUN Yingying, WANG Chao, WANG Ruixia, MU Qiuhuan, MI Yong, LV Guangde, QI Xiaolei, SUN Xianyin, CHEN Yongjun, QIAN Zhaoguo, WU Ke
    Journal of Agriculture    2022, 12 (3): 1-5.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0043
    Abstract + (548)    HTML (18)    PDF (1056KB) (678)      

    Lodging is a key factor which restricts the wheat production. The lodging resistance improvement of wheat is beneficial to the harvest mechanization and agricultural production efficiency of wheat. Furthermore, the grain yield and quality can also be improved. In order to clarify the cause and the mechanism of lodging and its effects on wheat yield and quality, this paper summarized four aspects including the influencing factors, the lodging mechanism of stem, the effect of lodging on yield and on grain quality. Finally, key measures of lodging resistance and the future research direction were pointed out from two perspectives of breeding and cultivation measures. In the aspect of breeding, we should combine agronomic traits (such as plant height, stem thickness and filling rate) with mechanical properties (such as stem breaking resistance), and select high-yield and lodging-resistance varieties. In cultivation, we should pay attention to the coordination of different measures to achieve high yield and lodging resistance at the same time.

    Research Progress of Fish Habitat Protection Technologies
    HONG Yuzhen, MENG Shunlong, CHEN Jiazhang
    Journal of Agriculture    2023, 13 (3): 82-87.   DOI: 10.11923/j.issn.2095-4050.cjas2021-0221
    Abstract + (355)    HTML (11)    PDF (1160KB) (633)      

    In order to further promote the in-depth development of fish habitat protection and restoration, and the application of protection technologies, the paper reviews the development status of fish habitat assessment methods and protection and restoration technologies at home and abroad, summarizes common assessment methods of fish habitats as well as technologies used in fish habitat protection and restoration projects, and analyzes the problems of existing protection measures. Based on the review, the paper puts forward comprehensive fish habitat assessment methods and restoration technologies, with a view to provide technical reference for technicians engaged in fish habitat protection and restoration.

    The Relationship Between Leaf Area Index and Yield of Rice: Research Progress
    HE Mi, LI Xiaobo, HUANG Jing, HUANG Guangfu
    Journal of Agriculture    2022, 12 (8): 1-5.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0269
    Abstract + (783)    HTML (47)    PDF (963KB) (630)      

    Leaf, as the material basis for constructing the rice organs, is closely related to the quality of the light environment and the utilization rate of light energy. The leaf area index (LAI) is an important indicator related to rice yield, and is significantly correlated with the light and effective radiation absorption coefficient in rice canopy. In this paper, we reviewed the relationship between the LAI in different growth periods of rice and the yield, and pointed out that the optimal LAI could be increased based on variety selection and cultivation measures, to achieve the high yield. The study could provide a theoretical basis for developing a predicting system of the optimal LAI and for regulating the rational canopy structure of rice.

    Aquatic Environmental Toxicology of Chlorella pyrenoidosa Chick.: Research Progress and Application Prospect
    QIAN Xinyu, LIU Jian, YANG Xiaoxi, WANG Yuqin, ZHENG Yao, WU Wei
    Journal of Agriculture    2022, 12 (2): 65-72.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0026
    Abstract + (412)    HTML (9)    PDF (1203KB) (626)      

    Chlorella, a primary producer in the water body, is an indispensable part of the aquatic ecosystem. It is of great significance for chlorella to promote material circulation and energy flow. Chlorella is also a standard test algae species for toxicological evaluation of aquatic environment. In order to provide a basis for assessing the aquatic ecological risk of chlorella and developing its relative industrial chain, this paper analyzed the influencing factors during the process of chlorella culture, summarized the toxicological effects of pollutants on chlorella, and discussed its nutritional value and application prospect. Results show that the temperature, light, pH, nutrients, nitrogen/phosphorus ratio are the influencing factors in the process of large-scale cultivation of chlorella. The heavy metals, pesticides, new type of nano materials, antibiotics and etc. could cause significant toxic effects on chlorella. Chlorella has a good application prospect in the process of sewage treatment, bioenergy utilization and other fields.

    Water Purification Function and Cultivation Techniques of Water Caltrop: Research Progress
    ZHANG Zhongwu, HUANG Lin, DENG Zhengchun, WANG Zhongmei, HU Chao, JIANG Wan, ZHANG Yang, PENG Yuanqun, WANG Zhen
    Journal of Agriculture    2022, 12 (5): 37-41.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0090
    Abstract + (571)    HTML (6)    PDF (1052KB) (606)      

    Water caltrop is an annual aquatic herb and important economic plant, and it is rich in nutrients. The stems and leaves of water caltrop could be used as feed, and the fruit starch content is high which could be used for feed and wine making. In addition, water caltrop could purify the water quality and improve the environment. This article introduced the bio-ecological characteristics of water caltrop, and summarized the research achievements in its function of water purification, germplasm resources, collection and utilization, cultivation techniques, and etc. The study suggested that the research on breeding and matching cultivation techniques of water caltrop should be enhanced to promote the development of water caltrop industry.

    Comparison Study of 6 Kinds of Tomato Leaf Epidermis Slice Techniques
    SONG Yanbo, YANG Yunhao, DUAN Pengjun, WANG Jiahao, WEI Siqing, ZHANG Yalong
    Journal of Agriculture    2022, 12 (1): 45-52.   DOI: 10.11923/j.issn.2095-4050.cjas2021-0093
    Abstract + (410)    HTML (15)    PDF (4364KB) (591)      

    This paper adopted six kinds of leaf epidermis slice techniques to treat lower epidermis of tomato leaves considering their structural characteristics, and compared the preparation process and observation effect of different techniques. The results show that tomato leaves are thin, the epidermis is single-layer cell with abundant epidermal hairs, and the lower epidermis is adjacent to the loose spongy tissue. Static characteristics, such as dynamic behavior of stomatal size, density and stomatal aperture, could be observed by skin peeling method and cellophane tape sticking method. Due to the softness of tomato leaves, the scraping method is extremely demanding to operate, and dissociation method is time-consuming and has poor effect, both the techniques are not suitable for the slice production of tomato leaf epidermis. Tearable nail oil blotting method could obtain the imprint of stomatal index and stomatal aperture, while the leaves would be damaged certainly. Silica gel-nail polish two-stage blotting method has no damage to the leaves, the same part of the same leaf could be imprinted continuously without scathe, and in this way, the dynamic behavior like stomatal movement and stomatal development could be observed continuously. The results could provide a basis for selecting suitable tomato leaf epidermis preparation methods for different research purposes.

    The Formation History of Anthropogenic Soils in Guanzhong Plain
    DU Juan
    Journal of Agriculture    2022, 12 (1): 84-89.   DOI: 10.11923/j.issn.2095-4050.cjas2021-0096
    Abstract + (276)    HTML (17)    PDF (1186KB) (578)      

    Lou soil is the major agricultural soil in Guanzhong region. The formation of Lou soil was influenced by farming activities such as cultivation, fertilization and irrigation, and every change of agricultural production technology would cause the change of the utilization mode and intensity of soil. Through the analysis of historical documents, the historical formation process of Guanzhong anthropogenic soil, and the interaction between agricultural technology change and soil evolution were studied in the paper. The results showed that since the beginning of primitive agriculture, the natural cognition of soil environment and crops had promoted the formation of early soil ploughing layer. With the extension and development of agricultural technology, the force applied to soil gradually increased, so that the human influence became an important element of soil formation and accelerated the formation of anthropogenic soil in Guanzhong. The ancient agricultural production technologies such as soil moisture conservation, fertilizer added with loess and basin irrigation were the main driving factors of agricultural soil formation.

    Effects of Different Amounts of Fulvic Acid on Tomato Yield and Quality
    LI Jing, LI Shiying, LI Qingsong
    Journal of Agriculture    2022, 12 (2): 54-59.   DOI: 10.11923/j.issn.2095-4050.cjas2020-0002
    Abstract + (393)    HTML (2)    PDF (1257KB) (566)      

    In this study, tomato variety ‘Jinpeng M6’ was used as the material and pot experiments were conducted to study the effects of different amounts of fulvic acid on tomato growth, nutrient absorption, carbon and nitrogen metabolism, and yield and quality. The results showed that the dosage of fulvic acid at 30 mg/kg could promote the growth of tomato plants at the seedling stage, increase the root volume and surface area, promote the absorption of nitrogen, phosphorus and potassium, and increase the content of soluble protein, soluble sugar and glutamine synthase, and the indexes of tomato reached the highest value. Compared with the control (fulvic acid was not applied), soluble sugar and vitamin C in tomato increased by 43.9% and 35.4%, respectively, and tomato yield increased by 28.1%. When the amount of fulvic acid was 3000 mg/kg, there was no significant difference of tomato-related indexes between the treatment and the control. Based on material cost and various indexes, the optimal dosage of fulvic acid is 30 mg/kg.

    Progress of Transgenic Technology in Improving Staple Food Crops in China
    ZHANG Huiying, WANG Ying, HAN Chenggui
    Journal of Agriculture    2022, 12 (10): 44-50.   DOI: 10.11923/j.issn.2095-4050.cjas2021-0042
    Abstract + (576)    HTML (41)    PDF (1100KB) (557)      

    Aiming at the application of transgenic technology in the improvement of staple food crops in China, this study described the principles and advantages of transgenic technology. The research progress of transgenic technology in the improvement of staple food crops (maize, wheat and rice) in China was reviewed. Moreover, the main application of transgenic technology in disease resistance, insect resistance, herbicide resistance and quality improvement of staple food crops in China was summarized. At last, the study put forward future research directions, expecting that people can better understand transgenic plants and treat the application and development of transgenic plants with a scientific attitude.