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陕西省勉县为典型的稻-油两熟轮作区,油菜种植模式主要以育苗移栽,常年种植面积1.05万hm2,现对油菜机播机收及配套栽培技术总结如下。1油菜机播机收优势1.1产量抗性优势机播油菜主根粗长,根系发达,有利于吸收土壤水分和养料,因而抗旱、抗倒、耐渍能力都显著优于移栽油菜;机播油菜种植密度大,分枝高,花期集中,受病菌侵染几率降低,一般比移栽油菜发病轻,因此产量能增加5%~20%。
Mianxian County, Shaanxi Province, is a typical rice-oil double rotation cropping area. The rapeseed planting mode mainly transplants seedlings. The perennial planting area is 10,500 ha. Now, the rape planting and planting techniques are summarized as follows. 1 rapeseed machine sowing machine to take advantage of 1.1 superior yield resistance machine sowing main root diameter coarse, root system, is conducive to absorb soil moisture and nutrients, so drought, lodging resistance, stain resistance were significantly better than transplanted rape; Planting density, high branching, flowering concentrated, reduced chance of infection by bacteria, the general incidence of transplanting rape light, so the yield can increase 5% to 20%.