期刊论文

中文

湖南农业科学

1006-060X

2014

05

16-18

10.3969/j.issn.1006-060X.2014.05.005

科技部农业科技成果转化基金项目；

本校为第一机构

为了探明陵两优104在湖南地区适宜的机插密度,于2013年在长沙县路口镇明月村进行了机插秧大田试验,研究了3种机插密度（33.3万、25.0万、17.5万穴/hm2）对陵两优104产量及产量形成的影响。结果表明：随着机插密度的增加,陵两优104的产量呈增加趋势,其中以33.3万穴/hm2的产量最高,为9.66 t/hm2,较25.0万穴/hm2、17.5万穴/hm2分别增加了12.2%、22.4%。在高机插密度下,陵两优104有效穗多,叶面积指数较大,冠层光辐射截获率高,叶片光合能力强,有利于增加群体干物质生产量而获得高产。

In order to ascertain the suitable machine-transplanted density of Lingliangyou104 in Hunan area, a field experiment was conducted in Mingyue Village of Lukou Town of Changsha County in 2013, and the effects of three machine-transplanted densities（D1： 333 000 holes/hm2; D2： 250 000 holes/hm2; D3： 175 000 holes/hm2） on yield and yield formation of Lingliangyou104 were studied. The results showed that with the increasing of machine-transplanted density, the yield of Lingliangyou104 showed an increase tendency; the highest yield of Lingliangy...