Study On Weeding And Fertilizing Technology Of The Naked Oat's High-yield And High-quality

In north China and northwest, naked oat (Avena nuda L.) is the main grain and forage crops in the higher and freezing region .The key methods to attain high yield and good quality of naked oat were formulation fertilization technology system and suitable herbicide type and concentration. This study field experiment on naked oats for weeding and fertilizing the pilot study. The main results were as follows:1. The effect of combination N with P to the quantity and quality of naked oatCombined application of N fertilizer and P fertilizer increases crop yields and effective economic measures. The percentage increases of N fertilizer main effect was 358.1%, the percentage increases of P fertilizer main effect was 43.8%.Restrictions on naked oats production factor is the smallest of N, followed by P nutrition. There is a clear interaction with N and P. The amount of N and P applied to spike number, grain number/spike, grain weight and thousand kernel weight of naked oat had significant positive effect(P<0.05).The most spike number and grain number/spike was in the N120P60 level, attained 4.1×106/hm2 and 41grain/spike respectively; the highest grain weight and thousand kernel weight was in the N120P90 level, attained to 1.5g/spike and 8.7g/1000g rain respectively.There are some influence on the crude protein and the crude fiber and the crude fat of the naked oats seeds with the different levels of N and P.2. The effect of combination organic manure with inorganic fertilizer to the quantity and quality of naked oatThe content of rapidly available nitrogen, phosphorus and potassium in the soil and the soil organic materials increased with the amount of organic manure applied increasing. The combination of organic manure with inorganic fertilizer had significant positive effect(P<0.05)to the plant height, total tillering, leaf area, spike length ,whorled number and spike number of naked oat.The best economic effect was 9115.2yuan/hm2 with the formulation of N120P60M30 applied in the naked oat field.3. The chemical weeding of naked oatThe broad-leaved weeds in naked oat field could be killed effectively by 72%2, 4-D emulsion, 75% Methyl-benzene dry suspending agent and 20%MCPA-NA Soluble powder. The results showed that the control effect and the fresh weight control effect of methyl benzene to broad-leaved weeds in the naked oat field were the best, reached to 87.9% and 95.6 % respectively.