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冬季绿肥毛叶苕子、光叶苕子经本市几年引种试种与翻压利用,已肯定为可推广的绿肥作物。但其产草量受播种期的影响很大,为明确播种期对其产量的影响及其与翻压利用的关系,我们于1964年秋进行了播种期的试验。试验分五期播种,从九月二十六日开始,每隔十天播一期,十一月五日为最后一期。播种时遇雨则顺延一天,以实际播种日期记载之。试验结果如下: 一、不同播种期对出苗和冬前生育的影响:九月二十六日与十月六日两期播种的,出苗初期与出苗整齐期均各在同一天内出现;十月十七日
Winter green manure leaves raccoon, razor clam leaves introduced by the city a few years to try and turn pressure use, has been identified as a green manure crop can be promoted. However, its grass yield was greatly affected by the sowing date. In order to clarify the effect of sowing date on its yield and its relationship with water use, we conducted a sowing experiment in the autumn of 1964. The trial will be sown in five phases, starting from September 26, and will be broadcast every ten days and November 5 as the last phase. When the rain is sowing deferred one day, the actual date of sowing recorded. The test results are as follows: First, the different sowing period of emergence and pre-winter childbearing impact: Sept. 26 and October 6 two sowing, early emergence and emergence of neatly appear in the same day; October 10 Seven days