论文部分内容阅读
1984年我们在省内不同生态类型棉区,设置12个点次进行联合试验,统一设计方案,统一田间规化,统一测试分析,统一施用肥料标准,统一调查记载,初步取得试验结果。从全省不同生态类型棉区设置的试验点的籽棉单产统计结果是:平均以每亩施7.5公斤纯 N 产量最高。居第一位(占总点次50%。籽棉产量229.67公斤)。追施5公斤纯 N 的
In 1984, we set up 12-point joint test in different types of ecological zones in the province to unify the design scheme, unify field regulation, unified test and analysis, unified application of fertilizers standards, uniform investigation and record, and preliminary test results. The statistical results of seed cotton yield from the test points set in different types of ecological zones in the province showed that the average yield of pure N was 7.5 kg / acre. Ranking first (accounting for 50% of the total point of seed cotton production 229.67 kg). Top 5 kg of pure N