|Table of Contents|

Effect of Biochar and Nitrogen Application Rate on Growth Development and Yield of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年01期
Page:
87-92
Research Field:
Publishing date:

Info

Title:
Effect of Biochar and Nitrogen Application Rate on Growth Development and Yield of Soybean
Author(s):
LIU Ming1 2 LAI Yong-cai1 LI Wei1 XIAO Jia-lei1 BI Ying-dong1 2 LIU Miao1 2 LI Wan1 2
1.Crop Tillage and Cultivation Institute of Heilongjiang Academy of Agricultural Sciences,Harbin 150086, China;
?2.Postdoctoral Research Station, Harbin 150086, China
Keywords:
Biochar Nitrogen Soybean Growth and development Yield
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2015.01.0087
Abstract:
Cylindrical tube cultivation trial was adopted in field to study the effects of interaction of biochar and nitrogen fertilizer on growth development and yield of spring soybean. It showed that appropriate biochar application helped in single plant dry matter accumulation and LAI. The regulation function role was important in late growth period than in earlier growth period. The dry matter accumulation and LAI of C1 was the highest at R6 stage,while they were decreased with the increament amount of biochar and lower than no biochar treatment in C3. The plant height was decreased by applying biochar treatment,and was decreased mostly with the increase of amount of biochar applied. In different periods, the average value of dry matter accumulation and LAI were the highest in N2(N 60 kg?ha-1)treatment,and the average value of SPAD was the highest in N3(N 90 kg?ha-1)treatment. Applied biochar 750 kg?ha-1?and nitrogen fertilizer 42 kg?ha-1?was the optimal a combination for soybean highyield.The theoretical yield could reach 3 546.9 kg?ha-1?in this test. Biochar combined with nitrogen fertilizer apply mainly through adjusting seeds per plant to affect soybean yield.

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Last Update: 2015-04-12