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钾肥对秋季复种绿萝卜产量和经济效益的影响
引用本文:李月梅.钾肥对秋季复种绿萝卜产量和经济效益的影响[J].安徽农业科学,2007,35(11):3319-3319,3369.
作者姓名:李月梅
作者单位:青海省农林科学院土壤肥料研究所,青海西宁,810016
基金项目:加拿大钾磷研究所PPI/PPIC北京办事处资助
摘    要:通过田间小区试验,研究了露地栽培条件下不同施钾水平对绿萝卜产量及经济效益的影响.结果表明:在施入纯N 152.25、kg/hm2,P205138 kg/hm2的基础上,绿萝卜施钾后增产效果显著.在施K2045~180kg/hm2范围内.其产量较不施钾肥的对照提高1.69%~22.03%;其中以施K20 90kg/hm2增产幅度最高,增产达15135t/hm2,其纯收益最高,为2 860.30元/hm2,产投比高达13.64∶1.乐都地区秋季复种绿萝卜最佳施K20量为90~135 kg/hm2.

关 键 词:绿萝卜  复种  钾肥
文章编号:0517-6611(2007)11-03319-01
收稿时间:2007-01-15
修稿时间:2007-01-15

Effect of Potash Fertilizer on Yield and Economic Benefit of Multiple Cropping Green Radish in Autumn
LI Yue-mei.Effect of Potash Fertilizer on Yield and Economic Benefit of Multiple Cropping Green Radish in Autumn[J].Journal of Anhui Agricultural Sciences,2007,35(11):3319-3319,3369.
Authors:LI Yue-mei
Institution:Institute of Soil and Fertilizer, Qinghai Academy of Agrieuhure and Forestry Science, Xining, Qinghai 810016
Abstract:Effect on yields,qualities and economic benefits of multiple cropping green radish in autumn after applying potash fertilizer with different level was studied in eastern agricultural areas of Qinghai.The results showed that applying potash fertilizer could increase the yields of green radish on the basis of applying 152.25 kg/hm2 N,138 kg/hm2 P2O5.Within the range of 45~180 kg K2O per hectare,the yields increased from 1.69% to 22.03 %,compared with the treatment without potash fertilizer.Especially,the increased yields of K2O 90 kg/hm2 treatment was highest(15.36 t/hm2) among all the treatments with potash.The net income(2 860.30 yuan/hm2) was highest and it's VCR was up to 13.64∶1.According to the research results,the optimum range of potash fertilizer application was 90~135 kg/hm2.
Keywords:Green radish  Multiple cropping  Potash fertilizer
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