灌云县小麦磷肥总量控制试验
Control Test of Total Phosphate Fertilizer of Wheat in Guanyun County
张玲 1王霞 2曹环 1刘敏1
作者信息
- 1. 江苏省灌云县土壤肥料站,江苏灌云222200
- 2. 江苏省灌云县种子管理站,江苏灌云222200
- 折叠
摘要
[目的]探讨灌云县东部地区小麦磷肥效应.[方法]在固定施氮315 kg/hm2、施钾45 kg/hm2的条件下,逐渐增加磷肥施用量(0、45、90、135、180 kg/hm2),研究不同磷肥施用量对小麦产量及经济效益的影响.[结果]在施磷90 kg/hm2的处理下,穗数、每穗粒数、千粒重均达最高,理论产量最高,达8 828.10 kg/hm2.与无肥区相比,施磷90 kg/hm2的处理下,小麦增产率为72.5％,增收4 890元/hm2,均达到最大值,且高于常规施肥处理.[结论]灌云县东部地区小麦最适宜施磷量为90 kg/hm2为.
Abstract
[Objective] The study aimed to investigate the effect of phosphate fertilizer on wheat in the eastern part of Guanyun County.[Method] Under the condition of fixed nitrogen application rate of 315 kg/hm2 and 45 kg/hm2,the amount of phosphorus(0,45,90,135,180 kg/hm2)was gradually increased,and the effect of different phosphorus content on the yield and economic benefit of wheat was studied.[Result] Under the treatment of P 90 kg/hm2,the number of spike,grain number per ear and 1000 grain weight were the highest,and the theoretical yield reached 8828.10 kg/hm2.Compared with the no fertilizer area,under the treatment of P 90 kg/hm2,the yield of wheat increased by 72.5％ and 4890 yuan/hm2,which reached the maximum value,and was higher than that of the conventional fertilization treatment.[Conclusion] The optimum amount of phosphorus in wheat was 90 kg/hm2 in the eastern part of Guanyun County.
关键词
小麦/磷肥/肥效试验Key words
Wheat/Phosphate fertilizer/Fertilizer experiment引用本文复制引用
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据