干旱区生态环境知识资源中心(Arid): 免耕留茬秸秆覆盖对河西走廊荒漠化土壤改土培肥效应的研究

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	免耕留茬秸秆覆盖对河西走廊荒漠化土壤改土培肥效应的研究
其他题名	EFFECTS OF NON-TILLAGE AND MULCHING ON SOIL BUILDING OF DESERTIFIED SOIL IN THE HEXI CORRIDOR
	秦嘉海
来源期刊	土壤
ISSN	0253-9829
出版年	2005
卷号	37 期号:4 页码:447-450
中文摘要	在荒漠化土壤上进行了免耕留茬秸秆覆盖、免耕留茬、传统土壤耕作的田间比较试验.结果表明,免耕留茬秸秆覆盖对河西走廊荒漠化土壤农田生态环境具有良好的影响.免耕留茬秸秆覆盖与传统土壤耕作比较,0～20cm耕层土壤全盐、孔隙度、pH分别降低1.86g/kg、5.28%和0.32;团粒结构,自然含水量,土壤贮水量分别增加72.5g/kg、32.95g/kg和111.98m3/hm2;玉米产量、产值、利润分别增加1.95t/hm2、1600元/hm2和600元/hm2;增产率达21.56%;土壤有机质、全N、速效N、P、K和CEC亦随之增加.
英文摘要	Field experiments on desertified soil in the Hexi Corridor were carried out to compare soil building effects between Treatment I (non-tillage + leaving stubbles + mulching with straws), Treatment II (non-tillage + leaving stubbles) and Treatment III (traditional farming produce). Results showed that Treatment I had the best soil building effect, reducing total salt, porosity and pH of the plow layer (0 - 20 cm) by 1.86 g/kg, 5.28 % and 0.32, respectively and increasing aggregate structure, natural moisture and moisture holding capacity of the soil by 72.5 g/kg, 32.95 g/kg and 111.98 m3/hm2, respectively and yield, output value and profit of the crop of corn by 1.95 t/hm2 or 21.56 %, 1600 yuan/hm2 and 600 yuan/hm2, respectively. Besides, its soil organic matter, total N, readily available N, readily available P, readily available K and CEC all increased correspondingly.
中文关键词	免耕留茬 ; 秸秆覆盖 ; 荒漠化 ; 改土培肥
英文关键词	Non-tillage and leaving stubbles Mulching with straws Desertification Soil building
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY ; AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:2012957
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206720
作者单位	甘肃省河西学院农业资源与环境科学系, 张掖, 甘肃 734000, 中国
推荐引用方式 GB/T 7714	秦嘉海. 免耕留茬秸秆覆盖对河西走廊荒漠化土壤改土培肥效应的研究[J],2005,37(4):447-450.
APA	秦嘉海.(2005).免耕留茬秸秆覆盖对河西走廊荒漠化土壤改土培肥效应的研究.土壤,37(4),447-450.
MLA	秦嘉海."免耕留茬秸秆覆盖对河西走廊荒漠化土壤改土培肥效应的研究".土壤 37.4(2005):447-450.

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