Cultivation method for high-yield oat forage grass sown in winter

Abstract

The invention relates to the technical field of forage grass cultivation, in particular to a cultivation method for high-yield oat forage grass sown in winter. The method comprises the following steps: (1) selecting sowing time, that is, choosing an early sowing mode, and sowing within the last ten days of September to the middle ten days of October; (2) controlling a sowing density at 4 kg / mu; (2) controlling a fertilizer amount within 40 kg / mu. Due to early sowing, water-fertilizer heat in the natural environment can be well utilized, the nutrition time is sufficient, accumulation of dry substances is facilitated, and the yield can be increased. Within a certain sowing density range, sufficient natural resources and spaces are available for colonies to grow and develop, the sowing amountcan be increased, the number of individuals in the colonies can be increased, and the hay yield of the oat forage grass can be also increased. The amount of a nitrogenous fertilizer and the hay yieldare in a parabolic relationship, diminishing return rules are met; if the amount of fertilizers is increased to a certain extent, the heights of oat can be increased, tillering can be enriched, and the yield can be increased.

Description

technical field [0001] The invention relates to the technical field of cultivation of forage grass, in particular to a cultivation method of high-yield oat forage suitable for sowing in winter. Background technique [0002] Oat (Avena L.) is a once-a-year crop of Poaceae, which is widely planted all over the world. Commonly cultivated oat, as a grain and grass crop, has the advantages of resistance to cold and drought, barrenness, and moderate salinity. Play an important role in agricultural production. Oat grain is a recognized health food, and its anti-oxidation, blood fat-lowering, and cardiovascular disease prevention effects are more and more recognized. Oats are usually fed to animals in the form of fresh oat grass, oat hay, oat silage and oat seed during production. Oat forage has soft stems and leaves and good palatability; its grains are rich in nutrition and can be used as high-quality concentrated feed. In the production of forage grass, there is often a shorta...

AI Technical Summary

Problems solved by technology

But there are following problems: 1, the productivity of natural grassland is low, and general fresh grass yield is only (0.3-1.2) * 104kg / hm2, and quality is relatively poor, simultaneously due to the irrational utilization of grassland resources and the impact of natural factors etc. Grassland resources are severely damaged, resulting in grassland productivity far from meeting the needs of animal husbandry development.

2. The current method of adding concentrated feed to crop straw cannot meet the needs of animal husbandry. Due to the domestic demand for high-quality forage, there are a large number of oat forage imported from abroad every year.

3. There is often a shortage of forage production in winter

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