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Published in last 1 year |  In last 2 years |  In last 3 years |  All Please wait a minute... For Selected: Download Citations EndNote Reference Manager ProCite BibTeX RefWorks Toggle Thumbnails Select Analysis on the influence of monsoon climate on crop yield per unit area：A case study of Zhenning autonomous county WEI Qi, WANG Hai HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 20-24.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.004 Abstract （450）      PDF （1588KB）（212）       Knowledge map    Save Based on the meteorological observations of annual mean temperature, annual rainfall, annual mean relative humidity, annual total sunshine hours, frost-free period and accumulated temperature and the statistical data of rice, wheat and maize yields from 1990 to 2012 in Zhenning autonomous county, the relationship between the yields of these three crops and these climatic factors was analyzed by using multiple linear regression model. The results showed that with the increase of rainfall, the yield of wheat decreased gradually, whereas the yield of rice and maize increased; The yield of the three crops was greatly affected by natural disasters; In the event of extreme weather, the planting structure of crops would appear relatively single situation. Reference | Related Articles | Metrics Select Study on the improvement effect on acid soil and on the suitable dosage of Yishizhuang commercial organic fertilizer on potato LUO Ke-wan, ZOU Ai-qing, ZHOU Fu-zhong HUBEI AGRICULTURAL SCIENCES    2021, 60 (12): 25-30.   DOI: 10.14088/j.cnki.issn0439-8114.2021.12.005 Abstract （405）      PDF （1564KB）（191）       Knowledge map    Save A field plot experiment was set to study the improvement effect of Yishizhuang commercial organic fertilizer on acid soil and the appropriate amount of it on potato. The results showed that the soil fertility was high, and the contribution rate ranged from 62.98% to 89.57%. It was completely feasible to replace part or even all chemical fertilizers with Yishizhuang commercial organic fertilizers.The combined application of the organic fertilizer and the formula fertilizer was better than the simple application of the organic fertilizer. The main performance was that the potato big potato rate was higher and the potato commodity quality and commodity rate were improved correspondingly. The quadratic and cubic regression equations of the amount of organic fertilizer and potato yields fitted by Excel reached extremely significant level. The maximum and optimal usage of the organic fertilizer on potatoes calculated by quadratic regression equation were 9 660 kg/hm2 and 7 993 kg/hm2, respectively. The highest and the most economic yield of potato were 33 314 kg/hm2 and 32 897 kg/hm2, respectively. The organic fertilizer had better effect on improving acidified soil. With the increase of the dosage, the soil pH and base saturation increased continuously. Exchangeable basic ions such as potassium, calcium and magnesium increased.However, the contents of exchangeable aluminum and available manganese in soil gradually decreased. It had certain effect on inhibiting the toxicity of aluminum and manganese in soil. Reference | Related Articles | Metrics page Page 1 of 5 Total 9 records First page Prev page Next page Last page