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油菜的田间管理,就是在油菜各生育阶段采取积极措施,创造有利条件,适时供其生长发育的需要,达到高产的目的。油菜要获得高产,必须使油菜生长发育正常,使构成产量的三个因素(每亩有效株数、每株有效角果数和每角果有效粒数)协调发展,这就与栽培技术有密切关系。种是基础,管是关键。一九八○年罗平县五万多亩小春油菜,平均亩产二十五斤。其中阿岗公社六百多亩,平均亩产十斤;板桥公社七千五百多亩,平均亩产八点二斤;富乐公社一千六百多亩,平均亩产八点一斤;中山公社三千七百多亩,平均亩产三点一斤。省内还有一些县、社的产量比这个还要低。其共同教训就是只种不管。天旱地干不管,缺肥缺水不管,蚜虫为害不管,如此等等。相反,玉溪县二万七千零三十八亩小春油菜,
Rape field management, that is, rape in each stage of development to take positive measures to create favorable conditions for timely growth and development needs, to achieve the purpose of high yield. To achieve high yield, rape must have normal growth and development of rape and coordinate the development of three factors that make up the yield (number of effective plants per acre, number of effective pods per plant and number of effective grains per acre), which is closely related to cultivation techniques . The species is the foundation, the tube is the key. In 1808 Luoping County, more than 50,000 mu of spring rape, the average yield of twenty-five pounds. Including al-Kong commune six hundred acres, the average yield of ten pounds; Panchiao commune 7,500 mu, an average of 8.2 kilograms per mu; rich commune 1,600 mu, average yield of eight pounds ; Zhongshan commune more than 3700 mu, the average yield of three one pound. There are still some counties in the province where the output of the community is even lower than this one. The common lesson is that no matter what kind of. Drought to dry no matter, lack of water and lack of fat regardless of aphids harm no matter, and so on. In contrast, Yuxi County 27,083 mu of spring rape,