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Journal of Agriculture ›› 2016, Vol. 6 ›› Issue (7): 6-12.doi: 10.11923/j.issn.2095-4050.cjas16010021

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Effects of Film Mulching and Nitrogen Application on Period、Moisture Consume and Yield of Sorghum

  

  • Received:2016-01-28 Revised:2016-04-07 Accepted:2016-04-25 Online:2016-07-18 Published:2016-07-18

Abstract: Abstract: In order to explore the effects of film mulching and nitrogen application on growth period, growth stages,soil moisture content , yield and yield component factors of different sorghum varieties.The experiment with two sorghum varieties ‘JinZa No.34’ and ‘JinZa No.35’ was conducted to investigate the varieties of different cultivation measures (B1:film mulching and B2 no film mulching) and different nitrogen leveles(C1:0kg/hm2N. C2:225 kg/hm2N. C3:450 kg/hm2N) on soil moisture content of different growth stages,yield and its component factors of sorghum in the experimental plot of The Industrial Crop Institute of Shan Xi Academy of Agricultural Sciences,China.The results showed that film mulching and N fertilizer application amout of 225 kg/hm2 were the reasonable cultivation measure for ‘JinZa No.34’ and ‘JinZa No.35’.The growth period of sorghum was significantly shorted by the film mulching treatment which was firstly shorted and then lengthened with the increasing of N fertilizer.Film mulching significantly increased the spike grain weight and yield pf sorghum.The water consumption of 0—20cm soil layer was more during the whole growth period of sorghum and increasing N fertilizer could enhance the water consumption of 0—20cm and 20—40cm soil layers.The variational laws of growth and development characteristics,soil moisture and yield trait of sorghum under the film mulching and nitrogen application have been obtained by the experiment which would provide a reference for the study of dryland sorghum.

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