论文部分内容阅读
1961和1962年,我们曾在杭州进行土壤水分状况对紫云英生长及鲜草产量影响的盆栽试验。现将结果整理于后。一、土壤水分状况对紫云英出苗的影响浙江各地,在稻田套播紫云英,一般不加复盖。因此,表土湿度的高低,对紫云英发芽、成苗的影响都很大。在大田土壤充分湿润的条件下,播种期适宜的,播后2~5天即可发芽出苗,苗势整齐。但土壤如果不处于充分
In 1961 and 1962, we conducted a pot experiment in Hangzhou on the effects of soil moisture status on the growth and yield of fresh milkweed. Now the results sorted in. First, the impact of soil moisture on the emergence of Chinese milk vetch Zhejiang across the country, in the rice fields planted asarum, generally without cover. Therefore, the level of topsoil moisture, germination, seedlings have a great influence on. In the field full of soil moist conditions, the sowing period suitable, 2 to 5 days after sowing can germinate, seedling neat. But if the soil is not full