干旱区生态环境知识资源中心(Arid): 河西绿洲灌漠土长期施肥效应及土壤生产力演变

Arid

	河西绿洲灌漠土长期施肥效应及土壤生产力演变
其他题名	Effect of long-term fertilization and evolvement of soil productivity on irrigated desert soil of oasis area
	索东让 1; 杨生茂 2; 孙炳玲 1; 孙宁科 1
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2005
卷号	23 期号:6 页码:56-60
中文摘要	张掖绿洲灌漠土连续21 a长期肥料试验结果表明：与无肥处理产量下降相对照,施肥的增产效果逐年提高,平衡施肥增产幅度显著大于单施氮肥.单施氮肥处理土壤生产力水平由第1轮作周期的89.8%降为第7轮作周期的28.5%;在不施用有机肥条件下,种植到第3轮作周期时作物开始对施钾有反应,施钾增产率为5.5%～22.7%;氮磷钾化肥长期配合施用,作物产量水平持续不减,土壤生产力平均达93.5%,表明氮磷钾化肥配合施用并不破坏土壤生产力.有机肥与氮肥配合施用,其交互作用为正效应;有机肥与磷、钾化肥配合施用交互作用为负效应.不施任何肥料时,绿洲灌漠土土壤生产力平均下降59.6%（第1～4轮作周期）;到第5～7轮作周期时,土壤生产力下降幅度保持在16.7%～22.7%相对较低且稳定的水平;化肥对作物产量的贡献份额平均为50.5%;有机肥贡献份额为21.6%;土壤自然肥力贡献份额平均为19.0%.
英文摘要	The 21-year long-term fertilization experiment was carried out on irrigated desert soil in the oasis area of Zhangye. The results showed that, as the yield of no-fertilizer treatment decreased gradually, the yield-increase effect of fertilization was increased year after year, and the increase rate of balance fertilization was remarkably higher than N fertilizer. The soil productivity of N fertilizer treatment was reduced from 89.8% in the 1st rotation period to 28.5% in the 7th period. Under the condition of no organic manure, the K fertilizer became effective to the crops from the 3rd rotation period, and the yield increase rate was 5.5%-22.7%. Under the condition of long-term compounding application of N, P and K fertilizers, the crop yield kept steady, and the average soil productivity was 93.5 %, showing that the compounding application of fertilizers didn＇t destroy the soil productivity. The interaction effect of organic manure and N fertilizer was positive, whereas that of organic manure and P or K fertilizer was negative. Without any fertilizer, the average decrease rate of soil productivity was 59.6% during the 1st to the 4th rotation period, and the decrease rate kept 16.7%-22.7% during the 5th to the 7th period. The contribution quotient of chemical fertilizer, organic manure and soil natural fertility to crop yield was 50.5%, 21.6% and 19.0% respectively.
中文关键词	长期施肥 ; 肥料效应 ; 产量贡献份额 ; 土壤生产力 ; 灌漠土
英文关键词	long-term fertilization effect of fertilizer yield contribution quotient soil productivity irrigated desert soil
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:2160760
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206119
作者单位	1.甘肃省张掖市农业科学研究所, 张掖, 甘肃 734000, 中国; 2.甘肃省农业科学院土肥所, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	索东让,杨生茂,孙炳玲,等. 河西绿洲灌漠土长期施肥效应及土壤生产力演变[J],2005,23(6):56-60.
APA	索东让,杨生茂,孙炳玲,&孙宁科.(2005).河西绿洲灌漠土长期施肥效应及土壤生产力演变.干旱地区农业研究,23(6),56-60.
MLA	索东让,et al."河西绿洲灌漠土长期施肥效应及土壤生产力演变".干旱地区农业研究 23.6(2005):56-60.