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苕子是优良的绿肥。目前不少地区因苕子种子产量较低,每亩仅二、三十斤,影响绿肥生产的发展。但也有一些社队的苕子种子产量较高,亩产百斤以上,为我们提供了丰富的经验。1973年,我们就苕子留种问题进行了试验和调查。现将结果介绍如下: 一、苕子留种试验 试验于马集公社跃进生产队进行。1972年10月播种,前茬为高梁,播种量每亩5—6斤。1973年春,将生长较为均匀一致的地段划为试验区,分五种处理,重复二次,小区面
Prickly heat is good green manure. At present, due to the low seed yield in many areas, the output of green manures only affects two or three kilos per acre. However, some communes and brigade clam seeds have higher seed yields and have produced over 100 kilograms per mu, providing us with rich experience. In 1973, we conducted tests and investigations on the issue of clam seeds. Now the results are introduced as follows: First, the test of seed retention test in Malaysia set the commune leap forward production team. October 1972 sowing, the former crop of sorghum, sowing rate of 5-6 pounds per mu. The spring of 1973, will be more uniform growth of the plot designated as the test area, divided into five kinds of treatment, repeated twice, small area