|Table of Contents|

Effect of Soil Olsen-P on P Content in Soybean Plant and Soil N，P，K Content(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2016年04期
Page:
691-695
Research Field:
Publishing date:

Info

Title:
Effect of Soil Olsen-P on P Content in Soybean Plant and Soil N，P，K Content
Author(s):
ZHANG Xiao-ming1; ZENG Xian-nan2; SUN Yu2
1． College of Agriculture，Northeast Agricultural University，Harbin 150030，China; 2． Crop Tillage and Cultivation Institute of Heilongjiang Academyof Agricultural Sciences，Harbin 150086，China
Keywords:
Soil Olsen-P;  NO －3 -N;  Potassium;  Plant phosphorus content
PACS:
S565. 1
DOI:
10.11861/j.issn.1000-9841.2016.04.0691
Abstract:
The content of Olsen-P in soil affects nitrogen，phosphorus and potassium uptaken of the soybean plant，thus affectingthe formation of the growth and yield of soybean plant. This test measured the trends of plant phosphorus content and soilN，P，K content with rising soil Olsen-P content. Ｒesults showed that，in the 4 periods of sampling，the plant P content increasedwith increasing soil Olsen-P，showed a single peak curve，and the plant P content is maximum when Olsen-P levels insoil is 30 mg·kg － 1. Soil Olsen-P content in 5 treatments all declined firstly，and then increased in the harvest period，whichmaybe due to phosphorus compensation of soil itself. During the whole growth period，the lowest value of NO －3 -N and potassiumcontent in soil both appeared in the phosphorus content of 30 mg·kg － 1. In the two treatments of 10 and 50 mg·kg － 1 Olsen-P content，NO －3 -N and rapidly available potassium contents were always higher. This indicated that low and high phosphorussoil have inhibitory effect on nitrogen absorption of plant. The change of soil available K content was similar to NO －3 -N，bothshowed a single peak curve with increasing of Olsen-P content. Ｒesults shows that the effect of the N、P、K fertilizer has mutualinfluence， equilibrium fertilizer( N，P and K) can improve the effection on soybean.

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Last Update: 2016-08-23