控释肥及控释BB肥在小麦生产上的应用效果和氮肥利用率研究

Applied Effects of Controlled Release Fertilizer on Wheat and Fertilizer-Nitrogen Use Efficiency

采用控释尿素和普通尿素两种氮素肥料在驻马店市驿城区水屯镇新坡村和驻马店市农科所农场进行优质小麦肥效试验研究.两地试验结果表明:100%控释尿素处理产量最高,为8 055 kg/hm2和8 295 kg/hm2,与同等氮素用量的普通尿素相比增产870,945 kg/hm2,提高12.1%和12.9%,增产效果显著;控释尿素用量在70%到100%时,产量随氮肥用量的增加而增加,普通尿素也呈现同样趋势,随尿素用量的增加小麦产量在增加;70%控释尿素处理与100%普通尿素处理相比,产量差异不大,没有达到显著性差异.说明施用控释尿素可以比普通尿素用量减少1/3的纯氮用量,小麦作物产量并不下降.控释BB肥处理比普通复合肥施肥处理产量提高了6.1%～5.6%,二者之间差异显著,控释BB肥配方适合当地的小麦配方.

The experiments of effects of controlled release urea（CRU） and conventional urea on winter wheat are studied in Xinpo village and Institute of Agricultural Science of Zhumadian,respectively.The results show that,the yields of the treatment of CRU100 % were the highest,which were 8 055 kg/hm2 and 8 295 kg/hm2,for Xinpo village and Institute of Agricultural Science of Zhumadian respectively.It increased 12.1 % and 12.9 % compared with the 100 % release-controlled urea test.The yield increased with the nitrogen application,as the application of control released fertilizer from 70 % to 100 %.And it were the same in conventional urea.As the amount decreased by 1/3,the yields were not reduced.Comparing the effect of the controlled release BB fertilizer with common compound fertilizer,the yield increased by 6.1 % to 5.6 %.The fertilizer formulas of controlled release BB fertilizer was suitable for wheat.