东兰县是广西“老、少、边、山”的农业县,常年秋冬油菜播种面积28 950亩,由于受秋冬干旱天气的影响,加上传统菜田栽培管理粗放,菜籽亩产徘徊在35~50kg,亩产值210~300元,产量与效益较低,农民种植油菜的积极性不高。油菜广种薄收的状况,不仅影响到全县油料作物的集约化、规模化发展,而且也影响到粮经作物的供给调整与优 Donglan County is an agricultural county in Guangxi Province with “old, few, side and mountain”. The perennial planting area of ​​autumn and winter canola is 28,950 mu. Due to the influence of autumn and winter dry weather, extensive cultivation and management of traditional vegetable fields, Hovering at 35 ~ 50kg, 210 ~ 300 yuan per mu, yield and benefit is low, the enthusiasm of farmers planting rape is not high. Rape wide variety of thin income situation, not only affects the county oil crops intensive, large-scale development, but also affect the supply of grain crops by the adjustment and optimization