Effects of planting density and nitrogen fertilizing level on yield,quality,and economic benefit of Ever-leaf oat in Guizhou region
To understand the impact of planting density and nitrogen fertilizing levels on the yield,quality,and economic benefits of Ever-leaf oat.The experiment utilized a completely randomized block design with three planting densities(150,180,and 210 kg/hm2,denoted as D1,D2,and D3)and four nitrogen fertilizing rates(0,80,110,and 145 kg/hm2,denoted as N0,N1,N2,and N3).The results showed that under the same nitrogen fertilizing rate,stem thickness,plant height,leaf number,leaf width,crude protein,and crude fat of Ever-leaf oat decreased with increasing planting density,while hay yield did not show a significant difference among different planting densities(P>0.05).Under the same planting density,nitrogen fertilizization favored an increase in hay yield,crude protein content,and economic benefit of Ever-leaf oat.In the two-factor experiment with three planting densities and four nitrogen fertilizing rates,D1N2 exhibited the highest hay yield,crude protein content,and net income.The study suggests that the optimal cultivation approach for Ever-leaf oat in the Guizhou region is a planting density of 150 kg/hm2 and a nitrogen fertilizing rate of 110 kg/hm2.
万方数据
维普
