摘要
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 .
An experiment was conducted in the seashore region of northern Jiangsu to improve the immature soil formed after land leveling with application of some organic manures such as pig manure, cake manure and straws. The result showed that pig manure and straw application at higher rates gave better effects on soil fertility and crop yields. Through 3 crop′s enhancements the soil available N, P, K, total N and organic matter contents increased markedly and the soil fertility comprehensive evaluation value went up from initial 0.220 2 to 0.388 3. The figure, however, was still much lower than those of the normal fields. For the 3rd cropped rice, the yield was significantly correlative with soil fertility.
出处
《扬州大学学报（自然科学版）》
CAS
CSCD
2000年第3期44-48,共5页
Journal of Yangzhou University：Natural Science Edition
基金
国家农业综合开发科技示范项目![国开科 1997(10 7) ]
江苏省农业综合开发实验区建设项目![苏开科 1997(4) ]
关键词
生土
培肥
猪厩肥
秸秆还田
土壤肥力
immature soil
fertility improvement
pig manure
straw manure
