|Table of Contents|

Effect of Barren Subsurface Application of Phosphorus on Soybean Growth and Yield(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2018年02期
Page:
258-262
Research Field:
Publishing date:

Info

Title:
Effect of Barren Subsurface Application of Phosphorus on Soybean Growth and Yield
Author(s):
GAO Zhong-chao1; 2;  XIAO Chang-liang3;  SUN Lei1;  WANG Cui-ling2;  GAO Wen-chao2;  ZHANG Li-li2;  LIU Feng2
(1.Institute of Soil Fertilizer and Environment Resources, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; 2. Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China； 3.Rice Research Institute of Heilongjiang Academy of Agricultural Reclamation Sciences, Jiamusi 154007, China)
Keywords:
Soybean;  Application of phosphorus;  Surface layer;  Root system;  Yield
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2018.02.0258
Abstract:
In order to efficiently utilize phosphorus in soybean field, pot experiment was used to simulate the application of SSP on the phosphorus-depleted subsurface soils to study the effects of different amount of phosphorus(0 kg?ha-1(T0)，30 kg?ha-1(T1),60 kg?ha-1(T2),120 kg?ha-1(T3),240 kg?ha-1(T4))on the growth and yield of soybean Heinong 48. The results showed that:Soybean had weak response to phosphorus at the seedling stage, the difference of plant height and dry matter weight was not significant when the phosphorus was applied compared with the control, the SPAD value showed the trend of T3>T2>T4>T1>T0, T3 treatment with 120 kg?ha-1 had significant difference compared with T0. During the podding stage of soybean (R4), the effects on the nodule, root index and dry matter weight of soybean were single peak curve or straight line trend with the increase of phosphorus application. Phosphorus promoted the root growth, root length, root surface area and root nodule increased, which was conducive to the accumulation of dry matter. The difference of the treatment of phosphorus higher than 120 kg?ha-1 and less than 30 kg?ha-1 was significant. Phosphorus application on soybean yield compared with no phosphorus treatment showed significant difference, but there were slight differences between years, the best phosphorus application in 2016 was the treatments of T2 and T3, the yield was increased from 10.5% to 12.1% than T0 treatment. In 2017, the best phosphorus application was T3 treatment, the pot yield was 73.0 g, which showed the trend of T3>T2>T4>T1>T0, T3 treatment was significantly different from other treatments. Two years of test results further proved that in the poor phosphorus-deficient soil sub-surface, the best phosphorus application amount was T3 treatment(120 kg?ha-1), which could promote the growth of soybean root system, which was of great significance for high yield of soybean.

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Last Update: 2018-04-02