[1]匡恩俊.不同还田方式下大豆秸秆腐解特征研究[J].大豆科学,2010,29(03):479-482.[doi:10.11861/j.issn.1000-9841.2010.03.0479]
　KUANG En-jun.Decomposition Characteristics of Soybean stalk under Different Stalk Returning Method[J].Soybean Science,2010,29(03):479-482.[doi:10.11861/j.issn.1000-9841.2010.03.0479]
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不同还田方式下大豆秸秆腐解特征研究

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第29卷 期数: 2010年03期 页码: 479-482 栏目: 出版日期: 2010-06-25
Title:
Decomposition Characteristics of Soybean stalk under Different Stalk Returning Method
文章编号:
1000-9841（2010）03-0479-04
作者:
匡恩俊
黑龙江省农业科学院 土壤肥料与环境资源研究所，黑龙江省土壤环境与植物营养重点实验室 黑龙江 哈尔滨 150086
Author(s):
KUANG En-jun
Institute of Soil Fertilizer and Environment Resource, Heilongjiang Academy of Agricultural Sciences, The Key Laboratory of Soil Environment and Plant Nutrition of Heilongjiang Province, Harbin 150086，Heilongjiang，China
关键词:
大豆; 秸秆还田; 腐解规律
Keywords:
Soybean; Stalk returning; Decomposition regularity
分类号:
S141.4
DOI:
10.11861/j.issn.1000-9841.2010.03.0479
文献标志码:
A
摘要:
利用网袋法模拟秸秆还田方式，研究不同还田方式不同阶段大豆秸秆有机碳、氮、磷、钾养分释放特征。结果表明：经过150 d的分解，大豆秸秆生物量有39.2%~55.9%被分解，埋于土壤的大豆秸秆分解速度明显高于露天处理。腐解后大豆秸秆从组织结构上变得松散。露天与土埋处理秸秆有机碳分解率均随着时间的延长而增加，150 d时大豆秸秆分解了40.7%~59.2%，加入腐熟剂效果不明显。经150 d腐解后，大豆秸秆的氮、磷、钾养分释放率分别为60.1%~65.4%、18.3%~39.4%和74.6%~86.4%。
Abstract:
Net bag method was used to determine nutrition decomposing characteristics of organic carbon, N, P, and K of soybean stalks under two different crop stalk returning approaches. The results showed that after 150 days, decomposition rate of soybean stalks were between 39.2%~55.9%. The trend of stalk decomposition of soil coverage treatment was higher than open-air treatment. Tissue of soybean stalk became loose after decomposing. Organic carbon decomposition rate of straw was increased with time under open-air and soil coverage treatments. The soybean straw decomposition rate was 40.7%~59.2% after 150 days. Adding decomposition accelerator had not improved the speed of organic C decomposing. The decomposition rate of N, P and K were 60.1%~65.4%, 15.4%~39.4%, 74.6%~86.4%, respectively.

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备注/Memo

基金项目：国家科技支撑计划资助项目（2007BAD89B05，2006BAD05B05）。

作者简介：匡恩俊（1982-），女，硕士，研究方向为土壤肥力。E-mail: kuangenjun2002@163.com。

更新日期/Last Update: 2014-09-14