潮土肥料定位试验研究  

Location tests of fertilizer on fluvoaquic soils

作　　者：朱洪勋[1] 张翔[1] 孙春河[1] 

机构地区：[1]河南省农科院土肥所,河南郑州450002

出　　处：《磷肥与复肥》2000年第4期66-68,共3页Phosphate & Compound Fertilizer

摘　　要：4年定位监测结果表明 :土壤与肥料对小麦的供肥比例为 1∶ 2 .7,玉米为 1∶ 1 .7,施肥在作物高产中起重要作用 ,尤其要重视小麦施肥。有机肥与氮磷化肥配施增产更明显 ,还能提高籽实品质。单施氮磷化肥土壤速效钾出现亏缺 ,在生产中应注意施用钾肥。By means of 4year field location tests on fluvoaquic soils, the results show that the contribution rate between soil basic fertility and fertilizer to yield is 1∶2 7(wheat), 1∶1.7(maize). Fertilization raises yield of crop obviously, the amount of increasing yield of wheat is more than that of maize. Applying N and P fertilizer and organic manure affect greatly yield and quality of crops. The soil available K deficiency appears in applying N and P fertilizers, so applying potassium fertilizer should be paied attention.

关 键 词：潮土 有机肥 氮磷化肥 定位试验 施肥 

分 类 号：S147.2[农业科学—肥料学]