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人工种植甘草是治沙工程中的内容之一 ,试验通过采取机械直播的方式种植甘草 ,研究了不同播种深度、灌溉水平、种植密度对出苗率、保苗率及生长量的影响。结果表明 ,在灌溉条件下 ,甘草播种量为 2 2 .5kg/hm2 ,密度 30万株 /hm2 ;在喷水条件下 ,喷水时数达 2 0h,灌溉总额约为 1 50 0 m3/hm2 以上
The artificial cultivation of licorice is one of the contents of sand control project. The experiment adopted the method of planting live licorice to study the effects of different sowing depth, irrigation level and planting density on the emergence rate, seedling protection rate and growth rate. The results showed that under the irrigation conditions, the sowing amount of licorice was 22.5kg / hm2 and the density was 300,000 plants / hm2. Under the condition of water spray, the number of spraying hours was 20h and the total irrigation was about 1 50 0 m3 / hm2 the above