To protect ecological resources, it is necessary to house and feed grazing, and it is an excellent choice for the development of animal husbandry in regions with conditions. It is important to choose what kind of soils the provinces of different breeds should choose.
The seeding methods of pasture are mainly seeded, on-demand and broadcast. Among them, the effect of drilling is better, and the sowing distance varies depending on the type of pasture and the purpose of planting. For grasses with a height of more than 2 meters, the spacing is 40-60 cm when cutting grass; The shorter plants are less than 1 meter high when mowing, and the spacing can be narrow, generally 25-30 centimeters; It can be planted with a mechanical or animal power planter or drilled manually. The seeding depth should be even to facilitate the emergence of neat and tidy seedlings, and it is also convenient for cultivating and weeding, which is conducive to the growth of pasture and field management. On-demand broadcasting is suitable for planting on steep hillsides.
Spreading is to sow seeds on the ground with artificial or spreading equipment. After sowing, it will be covered with soil, and the rainy season will not cover earth. The sowing of the aircraft is a large-scale sowing and is suitable for use in areas where the topography is not suitable for mechanical farming or more remote areas.
Pastures are often unicast, that is, a kind of pasture sown on a piece of land. Legumes and gramineous grasses can also be used for mixed sowing. When mixed, the best way is to sow seedlings. This is easy to manage, and it is also conducive to the balanced growth of pasture. If the varieties are selected properly, the two different varieties can grow well. How to determine the general sowing grass depth. For relatively small pasture seeds, the top soil is weak, sowing should not be too deep, generally 1-2 cm, large seeds can be as deep as 3-4 cm. The sandy soil should be deeper, and the clay soil should be shallower; the soil should be deeper and the moisture should be shallower; the spring dryness should be deeper, and the summer and autumn can be shallow enough.
Shallow sowing is conducive to emergence if conditions are suitable. The seeding rate is determined mainly by the size of the seed, as well as the purity and germination of the seed. Generally, the purity of pasture seed is required to reach more than 90%, and the germination rate reaches 80%-90%. Under such premise, the appropriate seeding rate is determined according to the seed size. For grass cutting, the seeding rate of small seeds is generally 4.5-7.5 kg per hectare, and the larger seed is sown 15-30 kg per hectare; the seeding amount of grass for planting can generally be reduced by one third; mixed sowing The sowing amount is generally 60%-80% of the unicast seed amount. How to choose plots for cultivated pasture
In general, fertile and fertile pastures can be planted on fertile lands with convenient soil and fertile grasses with adequate water and fertilizer; fields with poor soil conditions such as field heads and barren slopes can be planted with grasses that are tolerant to drought and drought; saline-alkali soils can be planted with salt-tolerant plants. Pastures; permanent feed areas should be well planned according to aquaculture needs, and annual or perennial forage should be selected and connected; the stalks should not be planted on either side of the orchard and traffic routes.
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