|Table of Contents|

Effects of Biochar Based Fertilizer and Regulated Deficit Irrigation on Growth and Water Use Efficiency of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2020年02期
Page:
235-242
Research Field:
Publishing date:

Info

Title:
Effects of Biochar Based Fertilizer and Regulated Deficit Irrigation on Growth and Water Use Efficiency of Soybean
Author(s):
JIANG Xue1;  WANG Li-xue1;  DAI Wan-ning1;  LUAN Yong-peng1;  HU Jian2
(1.College of Water Conservancy, Shenyang Agricultural University, Shenyang 110866, China; 2.Liaoning Ruixin Hydraulic Engineering Co., Ltd., Shenyang 110400, China )
Keywords:
Biochar based fertilizer;  Regulated deficit irrigation;  Soybean of northeast region;  Yield;  Water use efficiency
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2020.02.0235
Abstract:
In order to explore the effects of biochar based fertilizer application and the degree of regulated deficit irrigation on soybean growth, yield and water use efficiency under brunisolic soil environment, we setted four different levels of carbon base fertilizer application to interact with regulated deficit irrigation at the flowering stage, and analyzed the main effects of biochar based fertilizer and regulated deficit irrigation and the effects between them on the plant height, dry matter weight, yield and water use efficiency of soybean. The results showed that the compensation effect of 300 kg〖DK1〗?ha-1 biochar applied based on fertilizer under the slight deficit reduction (BF2W2 treatment) on plant height was the largest, which was 19.53%, the application of 600 kg〖DK1〗?ha-1 biochar based fertilizer and slight regulated deficit irrigation can promote the dry weight of soybean shoots, which was 68.59% higher than that of the control treatment, the root dry weight peaked at 600 kg〖DK1〗?ha-1, the root-shoot ratio was generally reduced under the same water condition with the increasing of fertilizer application. The model was beneficial to the increase of soybean yield and water use efficiency, whose yield of soybean was 89.58 g per pot, which increased by 51.16% compared with the lowest yield, the water use efficiency under this treatment increased by 55.07% compared with the lowest water use efficiency. This model based on the biochar fertilizer application and the degree of regulated deficit irrigation can provide a theoretical basis for the production of soybean in this environment.

References:

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Last Update: 2020-06-10