控释尿素与普通尿素掺混不同比例对夏玉米产量及经济性状的影响

试验安排在驻马店市的新坡村与驻马店市农科所,研究了控释尿素与普通尿素不同比例对夏玉米产量及经济性状的影响.两地的夏玉米试验结果表明.控释尿素与普通尿素掺混处理的产量均以控释尿素70%+普通尿素30%处理最好.新坡村与驻马店市农科所的产量分别为8 699 kg·hm~(-2),9 008 kg·hm~(-2),比100%控释尿素处理增产6.1%,6.4%,比100%普通尿素处理增产16.2%,16.2%,比对照增产55.8%,56.2%,它们之间的差异达1%显著水平.该试验对玉米经济性状的影响主要在穗粒数和百粒重方面,对穗长、穗粗影响不大.

Effect of different blend ration between the controlled released urea and conventional urea on summer maize

The experiments of different blend rations between the controlled released urea and conven-tional urea were conducted in Xinpo Village and Institute of Agricultural Science of zhumadian, respec-tively. The results showed that, the yields of the blend ration between 70% controlled released urea and 30% conventional urea were the best, which were 8 699 kg·hm~(-2) and 9 008 kg·hm~(-2),for Xin-po Village and Institute of agricultural science of zhumadian respectively. It increased by 6. 1% and 6.4% compared with the 100% release-controlled urea test, and 16.2% and 16.2% compared with the 100% conventional urea test, and 55. 8% and 56. 2% compared with the contrasting test. The significant difference between these tests amounts to 1 % . The experiments produced little influence on ear length, ear width and stock height of corn,but bigger influence on the number of kernels and 100 -kernel weight.