Title: Effects of Long-term Combined Application of Organic and Inorganic Fertilizers on Crop Yield and Nitrogen Uptake
Abstract: Based on the 20-year fertilization experiment in light-loamy salinized fluvo-aquic soil(alluvial soil by the Yellow River) in Yucheng experiment station of Chinese Academy of Agricultural Sciences,the research systematically studied the effects of long-term combined application of organic and inorganic fertilizers on crop yield and nitrogen uptake.The results were as follows.At the same amount of nitrogen,in the treatment of long-term fertilization of normal inorganic fertilizer,the nitrogen content in wheat and maize stalk was higher,but the nitrogen quantity transported to grain and its physiological efficiency was lower.In the treatment of long-term fertilization of organic manure,the nitrogen physiological efficiency in wheat and maize was higher,while the nitrogen content and nitrogen transfer ammount were lower.Only long-term combined application of organic and inorganic fertilizers had increased the grain yields,economic coefficient,nitrogen contents,nitrogen transter ammount and its physiological efficiency.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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