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Effects of Delayed Nitrogen Fertilizer Application on Yield and Quality of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年01期
Page:
168-171
Research Field:
Publishing date:

Info

Title:
Effects of Delayed Nitrogen Fertilizer Application on Yield and Quality of Soybean
Author(s):
GUO Tai1;  LIU Xiu-zhi1;  ZHENG Dian-feng2;  WANG Zhi-xin1;  ZHENG Wei1;  LI Can-dong1;  ZHANG Zhen-yu1;  GUO Mei-ling1
1.Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi 154007, China;?
2.Heilongjiang Bayi Agricultural University, Daqing 163319, China
Keywords:
Delayed nitrogen application;  Fertilization;  Soybean;  Yield;  Quality
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2015.01.0168
Abstract:
On the premise of the phosphate and potash unchanged, controlling the total nitrogen and with the right amount of nitrogen fertilizer as basic fertilizer and seed manure, the rest of the nitrogen fertilizer were moved backward and split application was conducted to study the effects of nitrogen fertilizer on soybean yield and quality content.The results showed that the effects of yield increased was significantly with the nitrogen fertilizer backward and split application and reached extremely significant level between different treatments. The N6 treatment (pure N quantity of seeding fertilizer 15 kg?ha-1, flowering 30 kg?ha-1?and filling period 7.5 kg?ha-1) has the highest yield with 3 285.71 kg?ha-1, followed by treatment 5, 7, 8, 4, 3. The increasing yield of beginning flowering topdressing nitrogen stimulation effect was greater than the initial flowering, drum period of spraying nitrogen. The effect of spraying nitrogen stimulation on beginning flowering and drum installment was better than in the beginning of flowering one-time spraying. The nitrogen fertilizer backward and split application had a significant impact on soybean oil and protein content. Adequate base fertilizers or seed nitrogen was beneficial for improving soybean oil content. The nitrogen fertilizer backward application significantly decreased the content of oil content. With the increasing of topdressing nitrogen on beginning flowering, the soybean oil content showed a decline trend. The protein content had the opposite effect. The nitrogen fertilizer backward and split application increased the protein content significantly by 0.373 3%～1.323 3%. The soybean total content of oil and protein had accordance changing trends with the protein content.

References:

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Last Update: 2015-04-13