Study On High Yield Cultivation Technology Of Oat Feeding In Middle And Western Area Of Jilin Province

Oat has high research value as a kind of high quality feed.In this experiment,"Baiyan No.2"was used as the test material to study the effects of sowing row spacing,sowing amount,different degrees of nitrogen,phosphorus and potassium fertilizer application on its growth and development,yield and component factors.To provide scientific basis for growing oats.As long as the conclusion is as follows:(1)Row spacing had significant effects on hay yield,fresh grass yield and dry weight per plant.The greater the row spacing of oat hay and fresh grass yield,the greater the dry weight per plant.The maximum hay yield was 75467kg/hm~2when the row spacing was 37.5cm.There was no significant effect on plant height.(2)Sowing amount had significant effects on hay yield,fresh grass yield and dry weight per plant.The higher the sowing amount,the higher the hay yield,the higher the fresh grass yield,the heavier the individual plant.When the seeding amount was 240kg/hm~2,hay yield,fresh grass yield and dry weight per plant were the highest.(3)The difference of urea,diammonium phosphate and potassium sulfate application rates had no significant effect on the yield of oat hay,and there was little difference among different application rates.Urea,diammonium phosphate and potassium sulfate had significant effects on plant height,among which urea had a very significant effect.The higher the urea dosage was,the higher the plant height was.The maximum plant height was 123.4cm when urea dosage was 100kg/hm~2.Urea had the greatest effect on oat leaf length at the maximum application rate,and the maximum leaf length was 28.17cm when the application rate was 300kg/hm~2.The effects of diammonium phosphate and potassium sulfate on leaf length were the greatest at the minimum dosage,and there was a negative correlation.The leaf length was the longest when the dosage was 50+50kg/hm~2.They had no significant effect on leaf width,so the relationship between leaf area and leaf length was the same.When urea was applied at 300kg/hm~2,diammonium phosphate at 50kg/hm~2and potassium sulfate at 50kg/hm~2,the leaf area reached the maximum.Urea alone had the effect on dry weight per plant,and urea was the least.(4)When the sowing row spacing was 37.5cm,the sowing amount was 285g/15m~2,the urea application rate was 100kg/hm~2,and the application rate of diammonium phosphate and potassium sulfate was 100+100kg/hm~2,the highest oat yield was19802kg/hm~2.