1. The site selection site has selected Xiangyang ventilation, deep soil, loose fertility, and good drainage. The former can be used as corn, wheat, beans, sweet potatoes, etc., as planting sites. After harvesting the former crops, it is 30-40 cm deep and ploughed twice. It requires intensive .......

After the chicks have been grown for 5 to 6 weeks, they will be transferred from the brooding room to the breeding room until 18 to 20 weeks before they can be raised on the cage. How do you manage the rearing layer of laying hens? 1 Preparation before entering the breeding room 1.1 Environmen.......

Illumination is the energy source of nutrients produced by flower plants. Without light, photosynthesis cannot be carried out, and the growth and development of flowers will be seriously affected. Most plants can only thrive in sufficient light. Different types of flowers require different lig.......

1? Reasonable grazing: When grazing, the top wind must be out of the wind and the wind should be brought back to normal so that the ewes can gradually adapt to the cold. Even if the weather is cold, they need to be grazing nearby. This can not only maintain the amount of exercise, but also can.......

Vegetables are more sensitive to low temperatures, and they are susceptible to frostbite when they encounter low-temperature vegetables, and are even frozen to death. Now introduce several vegetable cold protection technology. Cultivating earth. In combination with cultivator before freezing, .......

First, the selection of good seed potato must adopt the “Dongnong 303”, which has wide adaptability, strong resilience, short growth period, rich nutrients, high yield, good quality, good taste and good taste, from the north. "Kexin 4" and so on. Second, appropriate sowin.......