The king of pasture - alfalfa has excellent characteristics such as high yield, good quality, good palatability, strong adaptability, etc. It is nutritious and balanced and is the best feed for all kinds of livestock. In the cultivation and management, we must pay attention to the following points:

A sowing method.

1. Seeding period: All the year round can be planted. Our region is mostly spring or summer sowing. It can be sown safely before the end of June.

2. Seed treatment: In feed production, the rhizobial agent corresponding to the initial planting of leguminous herbage or feed is usually inoculated with an amount of 10-15 grams per kilogram of seed; or the moist soil used in the field of the same class of legume crops is used. Seed mix, 25-50 kg of wet soil per acre, the operation to avoid direct sunlight, day and night or cloudy day, with the broadcast with the broadcast, timely cover soil.

3. Soil preparation and fertilization: The seeds are small, fine and dicotyledonous and difficult to unearth. Therefore, fine soil preparation is required before sowing. Before sowing, more than 2,000 kg of manure can be applied per acre, and 50 kg of phosphorus-potassium compound fertilizer or manure-specific fertilizer can also be applied during sowing.

4. Seeding method and seeding rate: Cockroaches can be mixed with gramineous grasses for seeding, and can also be cleared for seeding. Mechanical sowing. It is also possible to plow furrows, point gourds for seeding, ridge spacing 30-50 cm, and seed fields more than 50 cm. The principle of sowing depth is deep shallow ditch cover soil, trench depth of 6-8 cm, cover soil thickness of 1-2 cm. When you sow, you can step on the grid and press it again, which will provide a good repressive effect. The seeding rate is 0.75 - 1 kg.

Second, field management.

Alfalfa seedlings grow slowly and are vulnerable to weeds and subterranean pests, and should be controlled in time to eliminate impurities. There is less nodule in seedling stage and weak nitrogen fixation ability. A small amount of available nitrogen fertilizer can be applied to promote the growth and development of seedlings. The second year after returning to Qing and after each castration, some additional phosphate fertilizer should be applied. Seedlings or return to young crops to 18-25 centimeters, cultivating soil once, every year before the winter soil 1 times, irrigation 1 times, in order to facilitate safe winter.

Third, harvest and seed

Generally, when the plant has 10% of its flowers, it will be harvested, castrated 2-3 times per year, and remain 5-7 centimeters in height. The last time it is castrated is not less than one month before the next frost, and the height of stay is 10-20 centimeters. It is conducive to wintering.

The highest yield was obtained with the head lice. When the pods in the lower part of the plants turned black, the middle pods were brown, and the upper ones were yellow, they could be harvested in the morning. If the crop is grown on the average, the crop should be cut a little less in the first year. In the second year, some crops should be cut off before budding to increase the ventilation and transparency of the planting land and increase the seed yield.

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