Integrated Analysis of the Effect of Fertilizer Containing Ammonium Polyphosphate on Crop Yield
Using ammonium polyphosphate and different phosphate fertilizers as the main keywords,a total of 75 articles(55 in Chinese and 20 in English)are selected from the China National Knowledge Infrastructure(CNKI)and Web of Science databases,and 527 sets of data are obtained.Using ammonium phosphate fertilizer as the control group and fertilizer containing ammonium polyphosphate as the experimental group,the integrated analysis method is used to quantitatively evaluate the effects of applying fertilizer containing ammonium polyphosphate on crop yield,soil available phosphorus content,and phosphorus fertilizer utilization efficiency.Compared with the application of ammonium phosphate fertilizer,the application of fertilizer containing ammonium polyphosphate can significantly increase crop yield,with an increase rate(E)of 4.4%.Although the effective phosphorus content in soil(E is 3.0%)is increased,the effect is not significant.The utilization efficiency of phosphorus fertilizer(E is 56.0%)can be significantly improved.The sub-group classification analysis of crop yield effects shows that the application of fertilizer containing ammonium polyphosphate on tomatoes and maize is more effective.Crop yield,soil available phosphorus content,and phosphorus fertilizer utilization efficiency increase with the increase of soil organic matter content and soil pH,decrease with the increase of ammonium polyphosphate content,and increase with the increase of average polymerization degree of ammonium polyphosphate.The application of fertilizer containing ammonium polyphosphate increases crop yield,soil available phosphorus content,and phosphorus fertilizer utilization efficiency.The yield increase effect is influenced by soil characteristics,crop type,ammonium polyphosphate content,and average polymerization degree of ammonium polyphosphate.
ammonium polyphosphateyieldsoil available phosphorusphosphorus fertilizer utilization efficiencyintegrated analysis
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万方数据
