食用向日葵氮磷钾肥肥效试验初报  

Fertilizer Efficiency Experiment of Nitrogen,Phosphorus and Potassium Fertilizer on Confectionary Sunflower

作　　者：魏固宁[1] 

机构地区：[1]固原市原州区农业技术推广服务中心,宁夏固原756000

出　　处：《内蒙古农业科技》2009年第3期29-30,共2页Inner Mongolia Agricultural Science and Technology

基　　金：农业部测土配方施肥项目

摘　　要：固原市原州区清水河流域是食用向日葵的主栽区。近几年食用向日葵种植面积逐年扩大,现已发展到近1.33万hm2。通过对食用向日葵施氮、磷、钾肥肥效试验,得出食用向日葵一生中对养分需求最大的还是氮肥,氮、磷、钾配合施用效果更好;氮、磷配合施用优于氮、钾配合;氮、钾配合施用优于磷、钾配合;在原州区北部川水地食用向日葵生产中,在中等肥力土壤,生育期间最少有两次以上灌水条件的地块,氮、磷、钾都施的处理与施氮、钾的处理达到显著水平,产量达246.04kg/667m2;与施磷、钾和不施肥处理达到极显著水平。The original state Qingshui river basin is the edible sunflower＇s host plants. In recent years the edible sunflower planter surface is year by year big, already exhibition to nearly 1.33ha.What through to edible sunflower Shi Dan,the phosphorus, the potassium manure trial, obtains in the edible sunflower life to be biggest to the nutrient demand is the nitrogenous fertilizer, the nitrogen,the phosphorus,the potassium coordination employment effect is better; The nitrogen,the phosphorus coordination employment surpasses the nitrogen,the potassium coordination;The nitrogen,the potassium coordination employment surpasses the phosphorus,the potassium coordination;This test result,north original state area in Sichuan water edible sunflower production,In the soil medium fertility,the period of duration most little has two above times irrigates the condition the land parcel,processing which and Shi Dan,the potassium processing the nitrogen, the phosphorus,the potassium execute achieves the remarkable level, the output reaches 246.04kg/667m^2 ;With Shi Lin,the potassium and do not apply fertilizer processing to achieve the extremely remarkable level.

关 键 词：食用向日葵 氮磷钾肥效 

分 类 号：S565.5[农业科学—作物学]