油菜高产栽培技术与推广策略OA

This paper reviewed the high yield cultivation techniques of rapeseed from the aspects of strong seedling cultivation and timely transplanting,and explored the corresponding popularization strategies.Rapeseed production should be adapted to local conditions,selecting varieties with strong stress resistance and high yield based on local climate,soil and management conditions.Strong seedlings with 30-35 days of age,5-6 green leaves and 5-6 mm root diameter are suitable for transplanting.Supplementary fertilization is applied at 5-6 kg/667 m² of urea at the early seedling stage and 8-10 kg/667 m² of high-nitrogen compound fertilizer(N∶P₂O₅∶K₂O=30∶5∶5)at the late seedling stage,combined with targeted irrigation and drainage.Suitable herbicides are used for soil sealing and weeding before and after transplanting.Following the principle of"prevention first,integrated control",aphids,sclerotinia stem rot and other diseases and pests are controlled by field cleaning,yellow sticky traps and high-efficiency low-toxicity pesticides.Rapeseed is harvested at the proper time in early to mid-May.The popularization strategies include precise promotion based on regional characteristics to select suitable improved varieties and standardize strong seedling cultivation;establishing a composite communication network integrating traditional media,new media platforms and on-site interaction;and building a three-level demonstration network of core demonstration parks,township demonstration fields and farmer model households.This paper provides a reference for the high quality development of the rapeseed industry.