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1990年冬,小湖农场种植300亩紫云英获亩产2849公斤。主要措施是:一、防旱保苗 收割晚稻一定要留稻茬33厘米左右高。割稻秆较低或灌溉条件差的田块,要趁田土湿润时撒盖一层薄稻秆,遮盖幼苗。二、开好排水沟,适时灌水 田土太干或渍水,对紫云英生长不利,必须要搞好排灌。开沟宜于晚稻收割前进行,若收割前未开沟,收割后应立即补开。一般大田要开“井”字沟,小丘田开田边沟或“田”字沟,每2.6～3.6米开一条。厢沟宽约18厘米,田边沟宽约24厘米,中心排水沟宽33～40厘米,要求沟直
The winter of 1990, small lake farm planted 300 acres of Astragalus obtained 2849 kilograms per mu. The main measures are: First, drought seedlings to harvest late rice must stay about 33 cm high stubble. To cut low rice stalks or poor irrigation conditions plots, to take advantage of field soil when covered with a thin layer of straw, cover seedlings. Second, open a good drainage ditch, timely irrigation paddy soil is too dry or waterlogging, unfavorable growth of the milk vetch, we must do a good job of irrigation and drainage. Ditching should be carried out before the harvest of late rice, if not dug before harvesting, harvesting should be opened immediately. Ordinary field to open a “well” ditch, Xiao Tian open field open pit or “Tian” ditch, every 2.6 to 3.6 meters to open a. Xiang ditch width of about 18 cm, Tianbian ditch width of about 24 cm, the center drain width of 33 to 40 cm, requiring ditch straight