论文部分内容阅读
一、选地选茬,合理轮作种植甜菜要选择地势平坦,土层深厚,土壤肥沃、疏松,排水良好,灌溉方便的田块,以夏季作物(小麦、亚麻等)为前茬,实行4年以上轮作,避免重茬、迎茬及低洼地种甜菜.二、精细整地,施足底肥夏作物或秋作物收获后要进行伏耕或秋耕.畜力耕作耕深要求达到18厘米以上,机耕深度要求达到20~25厘米.早春进行耙耱保墒,达到表土细碎平整,土壤疏松,上松下实的宜播状态.由于地膜甜菜比露地甜菜需肥量增加30~50%,且中后期追
First, the selection of cropping, sugar beet reasonable rotation To choose flat, deep soil, fertile soil, loose, well drained, easy irrigation plots to summer crops (wheat, flax, etc.) as the former crop, the implementation of 4 years Above rotation, to avoid the stubble, facing stubble and low-lying sugar beet species. Two, finely ground, Shi enough to end summer fertilizer or autumn crop harvesting or autumn tillage .Towling tillage depth requirements of more than 18 cm, depth requirements Reaching 20 ~ 25 cm. Early spring rake 耱 preserving soil, to achieve fine crust formation, loose soil, on the pine should be sowing state .Because the mulberry sugar beet than the need to increase the amount of fat beet 30 to 50%, and the late chase