【摘要】 经3 a的试验研究,探讨了施用畜禽有机肥对辽河三角洲养蟹稻田水土环境的影响。结果显示,畜禽有机肥可极显著地增加养蟹稻田耕层土壤的速效氮、磷、钾的供应量,显著增加有机质含量,最终显著增加水稻产量,增产的幅度可达10.6%～14.8%。畜禽有机肥可降低耕层土壤氧化还原电位(Eh),增大田面水体中BOD5、COD的含量,所以在生产应用中既要作好无害化处理、充分腐熟,还不能超量使用,否则会给河蟹带来生长迟缓、重金属含量超标和水稻病害加重及倒伏的风险。更多还原

【Abstract】 Three years of experimental research were carried out, following results showed that the livestock and poultry manure can be a significant increase in paddy rice field top layer of soil available nitrogen, phosphorus and potassium supply, significant increase in the organic matter content, ultimately significantly increase rice yield, reach 10.6%～14.8%.Livestock and poultry manure can decrease the top layer of soil REDOX potential(Eh), increase of BOD5, COD content in the surface water bodies, so innocent treatment should be prepared in the production practice, fully rotten, not excessive use, otherwise it will bring the crabs grow slow, heavy metal content exceeds bid and rice disease aggravating and the risk of lodging.更多还原