干旱区生态环境知识资源中心(Arid): 荒漠绿洲香梨园覆草节水效应研究

Arid

	荒漠绿洲香梨园覆草节水效应研究
其他题名	Effect of straw mulching on water-saving of pear in desert oasis field
	徐胜利 1; 陈小青 1; 陈青云 2
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2004
卷号	22 期号:1 页码:97-101
中文摘要	南疆荒漠绿洲光热资源充足,但水资源短缺,严重制约了农业的发展.连续5 a香梨园覆草节水试验结果表明:覆草能显著提高香梨产量和品质,5 a间增产幅度为15.2%～65.3%;节水幅度达到28.8%～36.1%;土壤有机质含量增加25.6%～70.5%,速效氮、速效钾和速效磷的含量分别增加39.1～76.4 mg/kg、4.5～18.0 mg/kg、29.8～76.9 mg/kg; 0～30 cm土层10.0 mm直径总根数增加幅度达到55%～122.1%.经济效益分析表明:以覆草15 cm厚度比较适宜,5 a年均增产7 514.3 kg/hm2,年均收益达到12 117.15元/hm2,节水效益达到508.55元/hm2,产投比为4.39.
英文摘要	The light and heat resource, is rather abundant in the oasis area of South Xinjiang but lack of water resource severely restricts the development of agriculture, five-year experiment was carried out to study the effect of strew mulching on water-saving of "Xiangli" pear {Pyrus. sinkiangensis. Yu) grown on oasis soil. The results indicated that all the treatments of straw mulching with different covering thickness (20 cm; 15 cm? 10 cm; 5 cm) were beneficial for improving the yield and quality of pear. In the 5 years, the average increment of yield was 15. 2%~65. 3%; the water-saving efficiency was 28. 8%~36.1%; the content of organic matter in the soil was increased by 25. 6%~70. 5%, and that of available N, P and K was increased by 39.1~76. 4 mg/kg, 4. 5-18. 0 mg/kg and 29. 8-76. 9 mg/kg respectively. In the mean-time , the number of roots with the diameter of more than 10 mm in 0~30 cm topsoil was raised by 55%~ 122. 1%. Considering the economic value, the suitable covering thickness was 15 cm, with which the aver-age yield, the water-saving efficiency and the net income were increased by 7514. 3 kg/hm2, 508. 55 yuan/ hmz and 12 117.15 yuan/hm2 respectively, and the ratio was 4. 39.
中文关键词	覆草节水 ; 产量 ; 品质 ; 香梨 ; 土壤养分 ; 经济效益
英文关键词	straw mulching water-saving yield quality pear soil nutrient economic benefit
语种	中文
国家	中国
收录类别	CSCD
WOS类目	HORTICULTURE
WOS研究方向	Agriculture
CSCD记录号	CSCD:1503827
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204979
作者单位	1.新疆塔里木农垦大学植物科技学院, 阿拉尔, 新疆 843300, 中国; 2.中国农业大学农业与生物技术学院, 北京 100094, 中国
推荐引用方式 GB/T 7714	徐胜利,陈小青,陈青云. 荒漠绿洲香梨园覆草节水效应研究[J]. 中国农业大学,2004,22(1):97-101.
APA	徐胜利,陈小青,&陈青云.(2004).荒漠绿洲香梨园覆草节水效应研究.干旱地区农业研究,22(1),97-101.
MLA	徐胜利,et al."荒漠绿洲香梨园覆草节水效应研究".干旱地区农业研究 22.1(2004):97-101.