高寒地区覆膜油菜最佳施肥量研究  

Study on Optimum Fertilization of Mulch Rape in Alpine Area

作　　者：刘永忠[1] 雷发林[1] 王发忠[1] 韩君德 任慧章 LIU Yong-zhong;LEI Fa-lin;WANG Fa-zhong;HAN Jun-de;Ren Hui-zhang(Huzhu County Agricultural Technology Promotion Center,Huzhu Qinghai 810599,China)

机构地区：[1]青海省互助县农业技术推广中心,青海互助810599

出　　处：《青海农林科技》2018年第2期68-70,90,共4页Science and Technology of Qinghai Agriculture and Forestry

摘　　要：近年来互助县在全县农业区大力推广油菜机械化覆膜栽培技术,取得了显著的经济效益和社会效益,但油菜机械化覆膜栽培技术中的施肥问题从未研究过,本文就油菜施肥问题尤其是氮肥优化问题做一简要论述,力求扭转"土壤养分过量积累"和"养分损失严重"。In recent years,the mechanized film mulching cultivation technology of rapeseed has been popularized in the agricultural area of the whole county in Huzhu County,which has achieved remarkable economic and social benefits,but the fertilization problem in the mechanized film mulching cultivation technology of rape has never been studied. In this paper,the problem of rapeseed fertilization,especially the optimization of nitrogen fertilizer,is briefly discussed in order to reverse ＂excessive accumulation of soil nutrients＂and ＂serious loss of nutrients＂.

关 键 词：覆膜油菜 最佳施肥量 养分积累 养分损失 

分 类 号：S565.4[农业科学—作物学]