论文部分内容阅读
1997～ 1 998年在江苏淮北滨海地区的新整生土地上进行了施用猪粪、饼肥、秸秆 (麦秸和稻秸 )等有机物料的培肥试验 .结果表明 :以猪粪肥处理培肥效果最佳 ,秸秆还田处理中以麦季还稻秸、稻季还麦秸各 562 5kg· hm-2 为较好 . 3季培肥后 ,土壤各养分都有不同程度的增加 ,土壤肥力综合评价值呈持续上升趋势 ,试验开始时为 0 .2 2 0 2 ,3季后上升到 0 .3 883 ,但与当地大田土壤肥力综合值 0 .5653相比仍有较大差距 .各处理第 3季的水稻产量与土壤肥力综合评价值呈显著正相关 .
Fertilization experiments on pig manure, cake fertilizer, straw (straw and rice straw) and other organic materials were carried out on the newly planted land in the coastal area of Huaibei in Jiangsu Province from 1997 to 1998. The results showed that the best effect of fertilizing with pig manure In the treatment of straw and wheat straw, 562 5 kg · hm-2 of rice straw and rice straw were also better than each other.After three-year fertilization, the nutrients in soil all increased to some extent, and the comprehensive evaluation value of soil fertility Which showed a continuous upward trend at the beginning of the experiment, which was 0.222.0 at the beginning of the experiment and rose to 0.33883 after 3 seasons, but there was still a big gap compared with 0.6565 in the integrated field soil fertility field. There was a significant positive correlation between rice yield and comprehensive evaluation of soil fertility.