1. Site preparation: choose flat terrain, convenient irrigation and drainage, deep stratum, fertile soil, suitable soil structure, and good physical and chemical properties. It is better to cultivate the soil with sand. Freshly plow the land, apply th.......

In order to increase the yield and increase the profitability of chestnut, it is necessary to change the inferior ones and do a good job of grafting. To improve the survival rate, chestnut scion collection and storage is very critical, mainly to grasp the following three links: 1, excellent ti.......

First, the incidence of black fruit disease from May to August, harming green fruit, buds and flowers. After the onset, the fruit appeared brown spots. Control measures: Ditch drainage, remove the disease. The results were sprayed with a 1:1:100 Bordeaux mixture and sprayed with 50% Tuzet WP 6.......

1. Hydro-grid strip feeding method This is a method of feeding a cylindrical strip of feed on a special fenced food table. The production method of the grid plate: take a thickness of 2, a width of 25 cm, and a length determined by the length of the feeding bait, and then drill a row of grid p.......

The influence of diesel engine power is mainly determined by the working conditions of the compression system and the fuel supply system. Therefore, the following factors affect the power of the engine: 1. The compression system is in poor condition. 1.1 The compression ratio becomes smaller: .......

(1) Seeds of dragon teeth? After B-seeds mature in the middle or late September, they must be harvested. It is very difficult to search on the ground because it is waiting for fruit. When collecting seeds, great care must be taken to distinguish seeds from Araliaceae trees. Do not mix seeds su.......

In the celery seedlings, there are often problems such as slow seedling emergence, low germination rate, and irregular emergence. Therefore, the following points should be made on the seedlings: soak the seeds, soak the seed in 48°C hot water for 30 minutes before sowing, and then soak in t.......

There are many methods for feeding pigs with chicken manure by lactic acid fermentation method, such as drying method, fresh feeding method and conventional fermentation method, but it is better to use lactic acid method to ferment chicken manure. Because the use of this method can make chicke.......

The male and female geese selected for the purpose of planting are called reserve geese. The selection and maintenance of reserve gooses are related to whether it can improve the quality of the entire goose and obtain high-quality and high-quality eggs. First, choose to stay geese species. Cho.......

Answer: Zhang Xiaoguang, a consultant from the old Yangling Association for Science and Technology and a professor at Yangling Vocational and Technical College, said: As the weather gradually gets colder, the ground temperature drops to 10℃ o.......

Limousin cattle is native to France and is distributed in many countries around the world. Our country has been introduced for many years and can be used as a parent of the cross. Limousin cattle is famous for producing high quality meat pieces. The bones are fine, and the meat rate is high. T.......