祁县酥梨养分管理现状及问题分析  

Current Situation and Problem of Conventional Nutrient Management in Pear Orchards of Qixian

作　　者：李磊[1] 闫敏[1] 于志勇[1] 孙杰[1] 申海英 

机构地区：[1]山西省农业科学院土壤肥料研究所,山西太原030031 [2]晋中市气象局

出　　处：《现代农业科技》2010年第18期274-276,共3页Modern Agricultural Science and Technology

基　　金：山西省重点实验室开发基金项目(2008012013-3)

摘　　要：对祁县酥梨基地109户梨农的养分管理情况和梨园土壤养分进行调查分析。结果表明:当地农户轻秋施基肥,重花前、花后和膨大期施肥;轻施有机肥、化学磷、钾肥,重施化学氮肥;多为撒施、随水冲施。梨园土壤养分分析表明,有机质、全氮、有效磷含量均较低,速效钾含量较高。表层土壤养分含量最高,然后逐层降低,pH值逐层增高。依据调查,提出了重施秋季基肥,重施有机肥,增施化学磷、钾肥,减少化学氮肥,改进施肥方式,适当深施的建议。Investigation and analysis of nutrient management and soil fertility were conducted on 109 of pear farmers in Qixian.The results showed that local farmers fertilized heavily in the period before-flowering,after-flowering and fruit expanding,lightly of base fertilizer in autumn; Phosphate and potassic fertilizer and excessive chemical fertilizer were spread shallowly or with water. The content of organic matter ,total nitrogen and effective phosphorus in soil appeared low,the content of available potassium was high. The soil nutrient content was the highest at surface and reduced from top to bottom,but pH value was on the contrary. Based on this situation,it was suggested that base fertilizer in autumn,organic fertilizer,phosphate and potassic in chemical fertilizer should be increased,nitrogen in chemical fertilizer should be reduced. In addtion,it ought to improve fertilization mode and advert deep placement.

关 键 词：酥梨 养分管理 土壤肥力 山西祁县 

分 类 号：S143[农业科学—肥料学] S661.2[农业科学—农业基础科学]