|Table of Contents|

Soil Fertility Status and Optimum Fertilization of Soybean in Heilongjiang Reclamation Area(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年02期
Page:
211-214
Research Field:
Publishing date:

Info

Title:
Soil Fertility Status and Optimum Fertilization of Soybean in Heilongjiang Reclamation Area
Author(s):
ZHAO Yanfeng1; 2; WANG Peng1; SUN Zhenning3
1.Heilongjiang Bayi Agricultural University,Daqing 163319,China;2.Administration of Heilongjiang Agricultural Reclamation Jiusan Water Authority,Nenjiang 161441,China;3.Hangzhou Lucheng Primary School,Hangzhou 310012,China
Keywords:
Heilongjiang reclamation area; Soil fertility; Soybean; Optimum fertilization
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.02.0211
Abstract:
Soil erosion leads to the degradation and productivity decline of black soil in Northeast China.In order to confirm soil fertility status of Heilongjiang reclamation region,and optimize fertilization of soybean planting,in Heshan Farm of Jiusan Reclamation Bureau,pot experiments were carried out to study the fertility of mild,moderate,serious and very serious erosion soil.The results showed that the content of organic matter,available P and available K content decreased but available N content increased after reclamation.With the strengthen of soil erosion,the content of organic matter,available N and available K content decreased,available P content decreased first and then increased.Supplying capacity of soil N and K decreased,but the supplying capacity of P decreased first and then increased.N and K use efficiencies increased gradually,while the P use efficiency increased first and then decreased.The estimated optimal fertilizer input amount according to nutrient balance method was as 1.2 2.5 times as the current field fertilizer.

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Last Update: 2014-08-04