论文部分内容阅读
板田油菜能否安全越冬,是确保油菜生产的关键。可采取以下技术措施预防板田油菜受冻害。 (1)培土壅根。入冬结合中耕,清沟进行培土壅根,可改善土壤环境,疏松土壤,增厚根系的土层,提高地温,对提高油菜抗寒能力有积极作用。尤其是高脚苗培土壅根后,使根颈变短,有利于提高油菜的抗寒风侵袭的能力。 (2)重施腊肥。施用腊肥有利改善土壤理化性能,增加地温,减低土壤冻层厚度,防冻保暖作用明显。一般亩施猪、牛栏
It is the key to ensure the production of rapeseed if it can be safely wintered. The following technical measures may be taken to prevent frost damage in the field of rape. (1) Cultivation 壅 root. Into the winter with cultivator, Qing ditch for soil embedding root, can improve the soil environment, loosen the soil, thicken the roots of the soil, increase the ground temperature, to improve the ability of cold resistance of rapeseed has a positive effect. In particular, after the soil is rooted in high-grade soils, the root neck becomes shorter, which is favorable for improving the ability of the rape to resist the cold wind. (2) re-applied manure. Applying wax fertilizer is beneficial to improve the physical and chemical properties of the soil, increase the ground temperature, reduce the thickness of the soil freezing layer, and have obvious antifreeze and warmth effects. General Mushi pigs, cattle bar