Production of greenhouses

The production of alfalfa is basically the same as that of alfalfa production, but it is also somewhat different. Its high-yielding cultivation techniques are as follows: (1) Although the variety of common varieties of leeks can also produce alfalfa, the output and the market are not as early as the special or dual-use varieties. . Currently commonly used special or dual-use production varieties are: Shouguang Yi No. 1, Shouguang Yi No. 2, Xuzhou Four Seasons Yu, Tongshan early Yu and so on. (2) timely and reasonable planting local temperature stability above 10 °C, timely early seeding seedlings, when the seedling age of 80 days or so, seedling height 20 cm, the first 5-6 leaves can be planted, the density of row spacing 30 ~ 40 Centimeter, hole distance 8-10 cm, 1-2 plants per hole is appropriate. (3) Timely picking of the first crop of leek starts from the shed, takes about 30 to 35 days, the plant height is 20-25 cm, and the second crop needs 30 days or so to harvest. cm. In order to harvest soybean meal early and improve the efficiency, general greenhouses only harvest 2 pounds. After harvest, they are transferred to roots and strong seedlings to promote the management of vegetative growth. (4) Do a good job of fertilizer and water temperature management. The daytime temperature after harvesting is controlled at about 10°C and about 5°C at night. When the seedling height is about 10 cm, 50 kg of topdressing nitrogen fertilizer will be applied per acre, and the water will be poured every 7 days during the flood season. And with urea 29-25 kg per mus of water. (5) Timely pick-ups are generally made in April. When the dragonfly grows 40-50 centimeters high in May, it is harvested in the early morning and evening when it is tender and tender. It is tied into small kilograms of about 0.5 kilograms, then immersed in water and kept fresh, and goes on the market the next day. (6) Management after picking The management task is to preserve the seedlings from the picking season to the autumn rooting. It is necessary to minimize watering and fertilization, and after the autumn weather turns cold, cultivate the strong roots according to the method of cultivating roots. We will lay a good foundation for high output in the coming year.

White Back Fungus

White Back Fungus,Wood Ear,Black Wood Ear

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