不同播量对燕麦生长发育的影响

Effect of Different Seeding Densities on Growth Develoment of Oat.

研究了五种播量 ( 60kg/hm2 、12 0kg/hm2 、180kg/hm2 、2 4 0kg/hm2 和 3 0 0kg/hm2 )对家庭牧场“圈窝子”燕麦 (YTY品种 )生长发育及营养成分的影响。结果表明 ,燕麦分蘖的总数和单位面积的株数随播种量的增加呈上升趋势 ,但每株分蘖数呈下降趋势 ;播量为 180kg/hm2 时燕麦青干草产量最高 ( 1650 .78g/m2 ) ,粗蛋白质产量为 2 0 0 .73 g/m2 。燕麦生长发育的规律对不同播量的反映具有一致效应 ,随播量的加大燕麦粗蛋白质的含量呈逐渐降低的趋势 ,粗纤维含量呈逐步上升的趋势 ,而粗脂肪和粗灰分的变化不明显。播量增加不利于燕麦叶量的积累 ,相对较有利于茎量的积累。家庭牧场“圈窝子”

The effect of different seeding densities (60kg/hm\+2,120kg/hm\+2,180kg/hm\+2, 240kg/hm\+2 and 300kg/hm\+2) on growth development and nutrient content of oat (introduced YTY variety from Finland) in winder pen family ranch on Alpine were studied. The results showed the highest oat's yield of dry green herbage and crude protein under the treatment of 180kg/hm\+2 densities was 1650.78g/m\+2 and 200.73g/m\+2 respectively. The responses of oat's growth development to different treatment of seeding densities have consistent results in themselves. The biomass of oat's leaf did not decreased with the increase of seeding density, but the biomass of its stem increased. The winter pen in family ranch is an idea place for planting oat for getting green herbage.