不同整地方式及播深对直播青菜出苗的影响

[目的]探索与直播青菜栽培技术相配套的整地方式及播深。[方法]以青菜品种苏州青2号为供试品种,利用荷兰AL-640-SNT蔬菜气吸式精密播种机直播,分别在直播株距为4.9、7.2、9.8、14.4 cm的情况下设计4种整地方式、3种播深,研究整地方式和播深对直播青菜出苗的影响。[结果]在不同的直播株距下,皆以整地方式为旋耕2遍、播深为覆土1档处理最有利于直播青菜的出苗。[结论]该研究可为上海农场大面积推广直播青菜机械化栽培技术提供技术参考。

Effects of Different Land Preparation Method and Sowing Deep on Seedling Emergence of Directly Sowing Vegetables

[ Objective ] The aim was to explore the corresponding land preparation method and sowing deep of directly sowing vegetables. [ Method] Taking Suzhouqing No. 2 as tested variety, and using The Dutch AL-640-SNT Type Vegetable Precision Suction Seeder, 4 kinds of land preparation method and 3 sowing deep were designed under 4 kinds of plants space（4.9, 7.2, 9.8, 14.4 cm resp. ） to study the effects of land preparation method and sowing deep on seedling emergence of directly sowing vegetables. [ Result] Under different plants space, the treatment of rotary tillage 2 times and covering soil 1 file was most favorable of seedling emergence of directly sowing vegetables. [ Conclusion] The study provides a technical reference for promoting directly sowing vegetables mechanized cultivation of Shanghai Farm in a large scale.