草业科学2011，Vol.28Issue(7)：1400-1402,3.
紫花苜蓿播种密度对草产量及其他生物学性状的影响
Influence of planting density on grass yield and other biological properties of Medicago sativa
王莹 1段学义 1张胜昌 1段晓丽 1杨慧玲 1钱宝玲1
作者信息
- 1. 甘肃省酒泉市农业科学研究所,甘肃酒泉735000
- 折叠
摘要
Abstract
To questioning the higher planting density leading to lower seedling rate and the difticulty ol seedling maintenance of Medicago sativa in Hexi region of Gansu, the study investigates optimum planting density of M. sativa in Hexi region of Gansu. The results showed that grass yield depended on planting density of M. sativa. The optimum density was 6 millions grains per hectare. The density gave the highest grass and protein yields, of which were 24 776.66 and 4 924.5 kg/ha, respectively. However, with the planting density increasing, M. sativa showed advancing reviving in the spring, postponing florescence, decreasing plant height and dry matter, lower drought-resistance.关键词
紫花苜蓿/种植密度/草产量/蛋白质产量Key words
Medicagosativa/planting density/forage yield/protein yield分类
农业科技引用本文复制引用
王莹,段学义,张胜昌,段晓丽,杨慧玲,钱宝玲..紫花苜蓿播种密度对草产量及其他生物学性状的影响[J].草业科学,2011,28(7):1400-1402,3.
