灌溉条件下长期定位施肥对塿土剖面养分分布特征的影响

中国农学通报 ›› 2004, Vol. 20 ›› Issue (5): 139-139.

灌溉条件下长期定位施肥对塿土剖面养分分布特征的影响

古巧珍,杨学云,孙本华,马路军,同延安,赵秉强,张夫道

出版日期:2004-10-05 发布日期:2004-10-05

Effects of Long-term Fertilization and Irrigation on Soil Nutrient Distribution in Profiles of Loess Soil

Gu Qiaozhen, Yang Xueyun, Sun Benhua, Ma Lujun, Tong Yanan, Zhao Bingqiang, Zhang Fudao

Online:2004-10-05 Published:2004-10-05

摘要/Abstract

摘要： 对塿土12年连续施肥后土壤剖面养分分布的研究发现，施肥使有机质、全P在耕层（0～20cm）与CK比较有不同程度的增加；施肥可以显著影响0～200cm土壤剖面有机质的含量；PK处理土壤剖面存在P素适度下移，120～220cm全磷含量呈现峰值；施肥对塿土耕层及0～300cm剖面全K含量几乎无影响；塿土粘化层可以减缓养分的下移；氮磷钾化肥与有机肥配合施用，使土壤NO3--N与CK比较有适度增加，对培育土壤肥力有利。

Abstract: Nutrient distributions of the profiles of loess soil were studied after fertilizer were applied for 12 years continuously .The results showed that organic matter and total P of fertilization treatments were increased in the 0～20cm soil layer were higher than that of CK, organic matter content was different in 0～200cm profile of loess soil. The treatments of PK phosphorus leaching loss in the soil profile and total-P content was higher in the 120～220cm soil profile. Total K content in 0～300cm soil profile almost invariableness with application Potassium .Laying horizon of loess soil was the efficient way to control nutrient leaching loss. Application NPK combined with organic manure was the best way to increase N0-3-N than that of CK, and it could improve fertility of loess soil.

古巧珍,杨学云,孙本华,马路军,同延安,赵秉强,张夫道. 灌溉条件下长期定位施肥对塿土剖面养分分布特征的影响[J]. 中国农学通报, 2004, 20(5): 139-139.

Gu Qiaozhen, Yang Xueyun, Sun Benhua, Ma Lujun, Tong Yanan, Zhao Bingqiang, Zhang Fudao. Effects of Long-term Fertilization and Irrigation on Soil Nutrient Distribution in Profiles of Loess Soil[J]. Chinese Agricultural Science Bulletin, 2004, 20(5): 139-139.

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