首页|青海东部地区春油菜需肥规律的研究

青海东部地区春油菜需肥规律的研究

扫码查看
原文链接
  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
  • 维普
[目的]寻找最适合青海东部地区春油菜生长的施肥比例.[方法]采用4+X试验设计方案研究油菜在不同N、P、K肥施用量组合下各生物学性状与施肥的关系,并对所设5个处理进行对比,寻找出最优施肥量组合.[结果]春油菜在相同时期对N、P、K的需求呈现出一定的规律性,苗期养分吸收为N＞K＞P,抽薹期至盛花期对养分的吸收为N≈K＞P,结荚期对养分的吸收为K＞N＞P,成熟期对养分的吸收为N＞K＞P.因此,根据油菜的需肥规律,在苗期、抽薹期、花期和成熟期均应注重施用N肥,花期、结荚期和成熟期加强P、K肥的配合施用.[结论]青海东部地区春油菜生长的施肥最佳N:P2O5:K2O配比为1.00:0.14:0.94.
Fertilizer Demand Law of Spring Rape in Eastern Qinghai Province
[Objective] To find the optimum fertilizer proportion for spring rape in eastern Qinghai Province of China. [ Method ] The 4 + X experimental design was used to investigate the effects of different N:P:K proportions on biological traits of spring rape. The optimum fertilizer proportion was found by comparing five treatments. [ Result ] The spring rape required N, P and K regularly at the same stage. The fertilizer requirements in seedling stage, from bolting stage to flowing stage, in pod-setting stage and in mature stage were N>K>P, N ≈ K > P, K> N > P and N > K > P, respectively. Therefore, attention should be paid to application of N fertilizer in seedling stage, bolting stage, flowing stage and mature stage, and to application of K fertilizer in flowering stage, pod-setting stage and mature stage. [ Conclusion ] The best proportion of N:P2O5:K2O is 1.00:0.14:0.94 for spring rape in eastern Qinghai Province.

Spring rapeFertilizer demand lawFertilizer proportionEastern Qinghai Province

张荣、孙小凤、顾炽明、王朝辉、朱春来

展开 >

青海省农林科学院土壤肥料研究所,青海西宁,810016

西北农林科技大学资源环境学院,陕西杨凌,712100

春油菜 需肥规律 施肥比例 青海东部地区

国家科技支撑计划

2008BADA4B09

2010

安徽农业科学
安徽省农业科学院

安徽农业科学

北大核心
影响因子：0.413
ISSN：0517-6611
年,卷(期)：2010.38(27)
  • 7
  • 6