不同宽幅播种机型对冬小麦播种效果和产量影响的试验分析OA

To screen wide-width seeding models suitable for large-scale and refined wheat planting,five treatments corresponding to five types of seeding machines(test objects)were set up in this study.Comparative experiments were conducted from the dimensions of core parameters,sowing depth uniformity,seedling emergence and tillering character-istics,and yield formation.The results showed that wide-width seeding achieved an average yield increase of 9.8%compared with traditional drill seeding.Different wide-width seeding models differed in adaptive scenarios:the Yuncheng(Shandong)model was suitable for precision seeding in high-fertilizer fields;the Luoyang Xinle model a-dapted to farmlands with large straw returning amounts;the Xi'an Ya'ao and Huxian Shuangyong models were applica-ble to sowing in semi-arid soil.The research findings can provide a theoretical basis and practical reference for the se-lection of wheat wide-width seeders and the optimization of supporting cultivation techniques under different field condi-tions.