[1]宋秀丽.不同耕作方式下黑土团聚体养分变化[J].黑龙江农业科学,2014,(10):30-33.
　SONG Xiu-li.Nutrient Change of Soil Aggregates Under Different Reclamation[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(10):30-33.
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不同耕作方式下黑土团聚体养分变化

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2014年10 页码: 30-33 栏目: 出版日期: 2014-10-10
Title:
Nutrient Change of Soil Aggregates Under Different Reclamation
文章编号:
1002-2767（2014）10-0030-04
作者:
宋秀丽
黑龙江省农业科学院 齐齐哈尔分院，黑龙江 齐齐哈尔 161006
Author(s):
SONG Xiu-li
Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences,Qigihar，Heilongjiang 161000
关键词:
黑土; 养分; 保护性耕作; 粒级
Keywords:
black soil; nutrient; conservation tillage; grain size
分类号:
S158
文献标志码:
A
摘要:
为研究不同耕作方式对不同粒级土壤肥力的影响，设置免耕秸秆覆盖、深松秸秆还田、露天免耕、深松秸秆点烧和传统耕作5个处理，测定不同粒级上养分变化。结果表明：保护性耕作在各个粒径上都提高了有机质、全氮、全磷、速效氮、速效磷和速效钾含量。全磷和碱解氮含量在>2.00 mm团聚体上增加幅度较大，速效钾含量在<0.25 mm团聚体上增加幅度较大。随土壤团聚体的减小，保护性耕作各粒级团聚体有机质、全氮、全磷、碱解氮和速效磷有增大的趋势，但幅度各不相同。速效钾变化无明显规律。
Abstract:
In order to study the effect of different reclamation on soil fertility,five treatments were set up including no tillage with straw cover,Fukamatsu straw,open no tillage,straw burning Fukamatsu point and conventional tillage.Nutrient change at different particle size was determined.The results showed that conservation tillage in various particle sizes increased organic matter,total nitrogen,total phosphorus,available nitrogen,available phosphorus and available potassium content.Total phosphorus,available nitrogen in aggregates>2.00 mm increased greatly,available potassium in aggregates<0.25 mm increased greatly.Conservation tillage appeared increasing tendency with the decreasing of soil aggregates,organic matter,total nitrogen,total phosphorus,available nitrogen,available phosphorus,but the magnitude of each are not identical.available potassium had no obvious change.

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备注/Memo

收稿日期：2014-05-19
作者简介：宋秀丽(1984-)，女，黑龙江省富锦市人，硕士，助理研究员，从事土壤肥力及水土保持研究。E-mail：songxiuli5251@163.com。

更新日期/Last Update: 2014-12-05