The crude protein content of fresh alfalfa is the highest among green grasses, second only to clover, which is 4.6%, so it can be fed with monocotyledonous grass to make up for the lack of digestibility.
Autumn sowing is usually used in northern areas, where crops are harvested twice a year. The soil moisture is sufficient, the temperature is suitable, and there are fewer weeds and pests. Autumn sowing in Shaanxi, Hebei, Shanxi, Shandong, Tianjin and Beijing is the best, and the sowing date is August 10-September10. Too late affects normal wintering. In most areas, the row spacing is 30cm, which is beneficial to ventilation, light transmission and field management. The sowing amount is generally around 1kg/ mu, with less farming and more saline-alkali land. If the sowing amount is too large, the seedlings will be sparse. Sowing depth is the key to affect the quality of seedling emergence, which is generally too deep, and the optimal depth is 0.5- 1 cm.
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