摘要
20年定位监测结果表明,有机肥与化肥配施处理,可显著提高土壤有机质、全氮、全磷、碱解氮、速效磷和速效钾含量。其中,高量有机肥与氮、磷、钾化肥配施处理耕层有机质与全氮含量比试验前分别增加39.0%和30.7%。化肥与有机肥长期配施对土地生产力贡献优于相应化肥单施。N素化肥生产力贡献率72.9%,与有机肥配施对土地生产力贡献率92.2%,增产贡献率86.0%,比氮、磷、钾化肥处理增产贡献率高1.8%。有机肥对土地生产力贡献为80.3%,无肥处理贡献率为39.6%。高量有机肥与氮、磷、钾化肥配施对土地生产力贡献居首,能有效增加土壤养分含量,是提高生产力水平和培肥地力的最佳施肥结构。
The 20-year field monitoring location experiments indicated that the treatment of integrated use of organic manure and chemical fertilizers can significantly increase the contents of soil organic matter, total N and P, available N, P and K. With the combined application of high quantities of organic manure and chemical fertilizer, organic matter N,P and K increased by 39.0% and total N by 30.7%. With respect to the contribution to land productivity, the long-term integrated use of organic manure and chemical fertilizers was superior to the mere application of chemical fertilizer. The productivity contribution of N fertilizer was 72.9% and that of the integrated application was 92.2%. Its contribution to yield-increase was 86.0%, 1.8% higher than that under the N, P and K fertilizer treatment. The contributions of organic manure and no application treatment to land productivity were 80.3% and 39.6% respectively. The combination of high quantities of organic manure and N, P and K fertilizer was the highest as to productivity contribution, and could increase the nutrient contents of soil. It is the best fertilization structure of increasing productivity level and improving soil fertility.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2007年第1期65-69,共5页
Journal of Jilin Agricultural University
基金
"973"基础研究重大项目前期研究专项基金(2001CCB00800)
科研院所社会公益研究专项基金资助项目(2000-173
2001DIA10004)
关键词
黑土
有机培肥
土地生产力
土壤肥力
black soil
organic soil fertility improving material
soil productivity
soil fertility