|Table of Contents|

Effect of Lateral Fertilization Distance on N，P and K Absorption and Yield in Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年01期
Page:
79-82
Research Field:
Publishing date:

Info

Title:
Effect of Lateral Fertilization Distance on N，P and K Absorption and Yield in Soybean
Author(s):
SONG Qiu-lai1; ZHANG Xiao-xue2; ZHOU Quan3; GONG Zhen-ping1; MA Chun-mei1; DONG Shou-kun1; XU Yao1
1.College of Agriculture，Northeast Agricultural University，Harbin 150030，China；2.Shanghai Finc Tech Inc，Qinhuangdao 066000,China；3.852 State Farm，Baoqing 155620，China
Keywords:
Soybean; Lateral fertilization; Dry matter accumulation; Yield
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.01.0079
Abstract:
Under the uniform vertical fertilization distance of 6 cm below seed,the 0,6,12,18 and 24 cm horizontal lateral fertilization distance (HLFD) were adopted,and the dynamics of N,P and K absorption, dry mater accumulation(DMA) as well as soybean seed yield(SY)were determined under frame-planting and 15N tracer technique with Suinong14 as material. DMA and SY decreased with the increment of lateral fertilization distance.Highest DMA before R4 was obtained at 0 cm of HLFD.Highest DMA and SY at R8 were obtained at 6 cm of HLFD,and there were no significant difference between 0-12 cm of HLFD.Plant N,P,K content and accumulation decreased with the increment of lateral fertilization distance.In the former grow stage(V3-R1),the highest plant N,P,K content and accumulation was obtained at 0 cm of HLFD,and those in the later growth stage(R1-R8)was obtained at 0-12 cm of HLFD.The 0-6 cm of HLFD were benefit for nitrogen absorption before flowering,which was obviously better than 18-24 cm of HLFD.

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Last Update: 2014-08-04