控释尿素与普通尿素掺混比例对小麦产量及氮肥利用率的影响

Effect of Different Blend Ratios of Controlled Released Urea and Conventional Urea on Wheat Yield and Fertilizer-Nitrogen Use Efficiency

在驻马店市的新坡村与和兴农场进行了控释尿素与普通尿素掺混比例对小麦产量及氮肥利用率的影响试验.结果表明,控释尿素与普通尿素掺混处理的产量和氮肥利用率均以控释尿素70%+普通尿素30%处理最好.新坡村与和兴农场的产量分别为8 000和8 150 kg.hm-2,比100%控释尿素处理增产6.2%和7.2%,比100%普通尿素处理增产17%和16.7%,比对照增产39.9%和34.5%,它们之间的差异达1%显著水平.

The experiments of different blend ratios of the controlled released urea and conventional urea were conducted in Xinpo Village and Hexing Farm, respectively. The results showed that, the yields of the blend ratios of 70% controlled released urea and 30% conventional urea were the best, which were 8 000 kg . hm^-2 and 8 150 kg . hm^-2 ,for Xinpo Village and Hexing Farm, respectively, increasing by 6.2% and 7.2% compared with the 100% release-controlled urea test, by 17% and 16.7% compared with the 100% conventional urea test, and by 39.9% and 34.5% compared with the contrasting test. The significance difference between these tests amounts to 1%.