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冬油菜产量和含油量都比春油菜高,且能够调剂农时,并具有抗病虫的特性,在合理轮作换槎、利用闲水、实行复种等方面,均有巨大的经济意义和发展前途。目前冬油菜的播期即将到来,为了做好冬油菜的播种工作及冬前苗期管理,保证安全越冬和全苗,根据我所试验研究成果及大田生产实践经验,对冬油菜的播种及冬前苗期管理技术,提出一些建议,供各地参考。 一、选地及整地 冬油菜对土壤的要求一般不太严格。但为确保其正常生长和安全越冬,在选地方面应给予足够的重视。否则,会因选地不当,越冬死亡加重。种植冬油菜宜选土壤沙性小、有机质含量高、结构良好、土层深厚、地下水位低、无盐碱的地,前作以休闲地、豌豆槎及小麦槎地为佳,且忌连作。
Both the yield and oil content of winter rape are higher than that of spring rapeseed and can be used to adjust the agricultural time and have pest-resistant characteristics. They have great economic significance and development prospects in terms of rational rotation, utilization of idle water, and multiple cropping. At present, the sowing date of the winter rapeseed is coming. In order to do the sowing of the winter rapeseed and the pre-winter seedling management so as to ensure the safety of the wintering and the whole seedling, according to the results of my research and field experience, Before the seedling management techniques, put forward some suggestions for reference. First, the selection and site preparation Winter rape soil requirements are generally not too strict. However, in order to ensure its normal growth and safe winter, sufficient attention should be paid in the selection of land. Otherwise, due to improper selection, winter death increased. Planting winter rapeseed should choose a small sandy soil, organic matter content is high, good structure, deep soil, low groundwater level, no salinity to the former for leisure, peas and wheat plow to better, and avoid continuous cropping.