论文部分内容阅读
一季中稻区水稻秧田的实际播种量究竟应以多少为好?这问题,前人已有研究,各地亦有试验。一般认为:稀播可以提高秧苗素质,也关系到产量的高低。但是稀播究竟应以多稀为宜?过去常规水稻,一般稀播秧田亩播量为120—150斤;杂交水稻问世以后,杂交水稻秧田播量为每亩20—30斤。稀播又有了一个新的数量概念。这一新概念在常规水稻播量上是否可以应用?为了探讨中稻播量、秧苗素质和产量的关系,我们进行了这方面的研究。一、试验方法试验于1979—81年在本所农场进行。秧田
The actual seeding rate of paddy rice seedlings in a quarter of the mid-season should be as good as that of the previous one. Generally believed that: thinning can improve the quality of seedlings, but also related to the level of output. But thinning should be more dilute appropriate? In the past conventional rice, generally sowing acres of acres of sowing 120-150 pounds; hybrid rice came out, the hybrid seedling sowing rate of 20-30 kg per mu. Sparse broadcast has a new concept of quantity. Is this new concept applicable to conventional rice sowing? In order to investigate the relationship between sowing grain quality, seedling quality and yield, we conducted this research. First, the test method Test in 1979-81 on our farm. Seedling