Effects of Planting Density on Main Agronomic Characters and Yield of Silage Maize
In order to meet demand for silage maize cultivation technology on animal husbandry development in Heilongjiang Hongxinglong area ,three silage maize varieties were tested in four planting density to study the variation on the main agronomic characters and yield .The results showed that there was significant difference on yield per plant among different density .The green leaf ratio of Zhongyuandan 32 and Yangguang 1 de-creased ,while that of Longfudan208 changed little with the increase of density .The plant fresh weight of test varieties decreased with the increase of planting density .The appropriate planting density of Yangguang1 was from 6 .5 thousand to 7 .0 thousand plants per hectare ,and that of Zhongyuandan 32 and Longfudan 208 was from 6 .0 thousand to 6 .5 thousand per hectare .
国家科技期刊平台
NSTL
万方数据
维普
