Effect Of Cultivating Measures On Yield And Seed Quality Of Naked Oat

The effects of different nitrogen and phosphorus and sowing rate and row spacing treatments on the growth features and seed yield and its components , and the main nutrient andβ-glucan content of seed of naked oat(Avena nuda L. cv. Qingyongjiu No.887) were researched in this paper, the main results as following:4.1 Apply nitrogen or phosphorus had significantly effects on reproductive branch numbers, ineffective tillering and total tillering numbers, leaf area , seed yield and stalk yield, seeds of each spike and weight per 1000 seeds, spikes, grains of each spike of naked oat (P<0.05). Under N₉₀P₉₀ plot , the reproductive branch numbers, total tillering numbers, seed yield, spikes, weight per 1000 seeds, seeds of each spike weight, grains of each spike are the highest, 5.87 tillering/strain, 6.756 tillering/strain, 3400kg/hm², 5060000No./hm², 19.75g/1000seeds, 1.63g/spike and 57.33 grains/spike, respectively. The leaf area and stalk yield were the highest in N135P90 plot, 356.22cm²/plant and 20700kg/hm², respectively.The seed of naked oat crude protein and crude fat content were the highest for N₁₃₅P₀ and N₀P₆₀ plot, 19.39% and 7.92%, respectively. N and P had significantly effect onβ-glucan content of naked oat seeds (P<0.05); In N₉₀P₉₀ and N₁₃₅P₉₀ treatments,β-glucan content of naked oat seed were the highest. Visibility, high N or P could increaseβ-glucan content of naked oat seed. A positive correlation relationship exhibited between seed yield and spikes or seed weight per plant or seeds of each spike or weight per 1000 seeds spikes (P<0.01 or P<0.05).4.2 Sowing rate and row spacing had significantly effects on reproductive branch numbers, ineffective tillering and total tillering numbers, leaf area , seed yield and stalk yield, seeds of each spike and weight per 1000 seeds, spikes, grains of each spike of naked oat (P<0.05). Under 120kg/hm² of sowing rate and 20cm of row spacing treatment, the reproductive branch numbers, total tillering numbers, seed yield, weight per 1000 seeds,β-glucan content of seed are the highest, 4.7tillering/strain, 5.45 tillering/strain, 3230kg/hm², 19.48g/1000seeds, 2.41%, respectively. Under 60kg/hm² of sowing rate and 15cm of row spacing treatment, leaf area were the biggest. Under 150kg/hm² of sowing rate and 15cm of row spacing treatment, spikes and stalk yield were the highest, 4930000No./hm² and 19600kg/hm², respectively.Under 90kg/hm² of sowing rate and 30cm of row spacing treatment, the seed crude protein content were the highest in all treatments. Under 60kg/hm² of sowing rate and 25cm of row spacing treatment, the seed crude fat content were the highest in all treatments. Sowing rate and row spacing had significantly effects onβ-glucan content of naked oat seed.Planting naked oat net income were 7274 yuan/hm² and 6232 yuan/hm² for N₉₀P₉₀ and 120kg/hm² of sowing rate and 20cm of row spacing treatments, respectively.Comprehensive these factors, planting naked oat in eastern agricultural district of Qinghai Province, should apply pure nitrogen and phosphorus 90kg/hm², and the sowing rate and the row spacing should choice 120 kg/hm² and 20cm.