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	长期定位连施化肥的增产培肥效应研究
其他题名	Effects of Long-term Located Chemical Fertilizer Application on Yield and Soil Fertility
	索东让; 韩顺斌; 王托和
ISSN	0564-3945
出版年	2009
卷号	40 期号:1 页码:127-131
中文摘要	河西走廊灌区质地中壤的灌漠土上,21年的长期定位试验表明,化肥在作物增产中起主导作用.无有机肥条件下连年施用化肥比无肥处理增产粮食19.6%～300.5%,比有机肥增产16.2%～101.6%;生产力水平为90.9%～97.9%;对粮食增产贡献率平均达50%.连续平衡施用化肥对土壤养分的直接影响不均衡,土壤有机质含量连续19年下降了24.9%～27.4%;土壤全N比初始年提高13.7%～46.1%,速效N含量稳中下降的动态;土壤全P含量增效甚微,比初始年提高4.4%～5.1%,速效P含量稳中有增,提高了16.3%～19.1%;土壤K素库处于长期亏缺状态,速效K含量稳步降低的动态.化肥养分具有明显地间接培肥效应,在生物循环中以有机肥为载体下年输入土壤的N、P、K化肥养分分别占当年投人量的27.1%～31.3%,23.8%～27.0%和33.2%;化肥增产的秸杆有机C输入下年土壤的达567.3～626.7kg hm~(-2).证明有机肥中相当一部分养分来自化肥及其化肥的生产物.
英文摘要	The long-term located experiment for 21 years was carried out on an irrigated desert soil in Hexi corridor, Gansu province. The results showed that the yield-increase effect of chemical fertilizer was the most significant in all treatments. The effect of long-term balanced chemical fertilizer application on soil nutrients was different. The content of organic matter in soil declined by 24.9%-27.4% but the content of soil total nitrogen was (TN) increased by 13.7%-46.1%. The content of available N declined, but the content of soil total phosphate (TP) and available phosphate were increased by 4.4%-5.1% and 6.3%-19.1%, respectively. The K content in the soil was deficient, so the content of available K decreased gradually. The effect of indirect developing soil fertility of chemical fertilizer was very significant. The proportion of N, P and K in soil came from organic manure was 27.1%-31.3%,23.8%-27.0% and 33.2% of total inputs through biocycle.
中文关键词	化肥 ; 增产效果 ; 产量贡献率 ; 培肥效应
英文关键词	Chemical Fertilization Effect of yield-increase Soil fertility
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:3503334
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224269
作者单位	甘肃省张掖市农科所, 张掖, 甘肃 734000, 中国
推荐引用方式 GB/T 7714	索东让,韩顺斌,王托和. 长期定位连施化肥的增产培肥效应研究[J],2009,40(1):127-131.
APA	索东让,韩顺斌,&王托和.(2009).长期定位连施化肥的增产培肥效应研究.,40(1),127-131.
MLA	索东让,et al."长期定位连施化肥的增产培肥效应研究".40.1(2009):127-131.