黄壤旱地黄泥土施用磷石膏试验研究  

Effect of Applying Phospho gypsum in Yellow Upland Soil

作　　者：徐大地[1] 刘友云[1] 肖厚军[1] 张文安[1] 严绪成[1] 韦小平[1] 何成文[1] 

机构地区：[1]贵州省农业科学院综合研究所,贵阳550006

出　　处：《贵州农业科学》1999年第5期24-26,共3页Guizhou Agricultural Sciences

基　　金：国家"九五"科技攻关项目

摘　　要：磷石膏作为贵州酸性黄泥土新型土壤调理剂,经两年试验结果表明:(1)提高了玉米产量。667m 2 用50 kg,100 kg,150 kg,分别增产玉米36.7 kg,55.2 kg,73.4 kg,增产作用优于石灰;(2) 提高了土壤pH及土壤中有效磷、钾含量,有一定改土作用。The experiment was conducted to investigate the new increase yield technique for managing low middle yield upland and the sustainable development on yellow soil of hills in middle regions of Guizhou, and to find out a utilization way for phospho gypsum, the industry discard waste. The results showed that the maize yields of applying 50 kg, 100 kg and 150 kg per 667m 2 phospho gypsum increased 36.7 kg , 55.2 kg and 73.4 kg compared with CK separately, and its effect for increasing yield was higher than that of applying lime, and that applying phospho gypsum can improve the contents of valuable phosphorous and potassium via raising the pH value of upland. Therefore, phospho gypsum may be used as a new soil recuperation agent.

关 键 词：新型 土壤调理剂 磷石膏 酸性黄泥土 黄壤 

分 类 号：S155.24[农业科学—土壤学] S156.2[农业科学—农业基础科学]