淮北砂姜黑土有效锌含量和锌肥效应研究  

Available zinc content and zinc effectiveness of shajiang meadow soil in Hua-aibei

作　　者：阎晓明[1] 晁明亮 

机构地区：[1]安徽省农科院土壤肥料研究所

出　　处：《安徽农业科学》1991年第3期248-252,共5页Journal of Anhui Agricultural Sciences

摘　　要：对107个土样有效锌测定结果表明,淮北砂姜黑土是一种缺锌较严重的土壤(含量范围:0.13-0.83ppm,平均0.31ppm).大豆、水稻施用锌肥,增产10%-20%,其中尤以锌肥喷施效益最为显著,投入产出比高达1:68.40、1:83.25.施用磷肥能抑制大豆对锌的吸收,并与其施用量成正相关.The results of measuring the soil available zinc content of 107 sa-mples from north Anhui have shown that the zinc deficiency symptom of shajiangmeadow soil is common and serious, the mean value by the DTPA method is0.31(0.31-0.83) ppm. The percentage increases of zinc fertilizer application tosoybean and rice is usually 10%-20%, and the ratio of input to output comes to 1:68.40 and1:83.25 by spray application respectively. However, the application ofphosphorous fertilizer can restrain the zinc absorption to soybean. and the effectis significantly correlated with the amonnt of P application.

关 键 词：砂姜黑土 锌 含量 磷 肥料效应 

分 类 号：S158[农业科学—土壤学]