American scientists have developed a kind of transgenic mice, which can produce more proteins that stimulate the growth of nerve fibers in the brain and have a stronger ability to learn. In the labyrinth experiments, the transgenic rats had much higher foraging ability than the ordinary rats, and a ......

Eggplant, tomato and pepper have much in common in cultivation and management, and can be managed with reference to the tomato production and cultivation techniques 2-8, but also have their own characteristics. (1) Selection of varieties According to the requirements of the market for the eggplant& ......

The parasitoid is one of China's special resources insects. Paraffin is a wax produced by male parasitoids and processed to have a high melting point (81-85°C), stable performance, insolubility in water, moisture resistance, corrosion resistance, rust prevention, lubrication, lightening, etc ......

Breeding ducks generally refer to 31-150 days old ducks. The breeding of ducks in the first few days is close to that of ducklings, and it gradually transitions to the rearing management of bred ducks. The bred duck generally feeds 3 meals a day, and when the summer cools, the ducks have a good app ......

1. After the potato mulch film is covered with the cultivation mulch, it will not only keep the ridge of the soil moist, save water, but also increase the soil temperature and promote the growth and development of the potato. According to the experiment, potato tubers grown in film-covered cultures ......

First, the choice of varieties of courtyard grapes Because the courtyard is warm and easy to form a microclimate, which is conducive to the growth of the grapes, and there is sufficient fertilizer and water, and the management is fine. Therefore, according to the number of cultivation, select high ......

First, the current situation of cotton production At present, the province's cotton has entered a full bloom bell, the situation from the Fushun peach survey and the current growth point of view, this year's cotton production in our province can be described as human efforts, days of help, ......

Spores and orchids are a variant of Brassicaceae. The early stage of the plant is like Gan Lan. After the bolting, there are many leaflets growing between the leaves. These leaflets are edible parts. The sporocarp is a western food. Its edible method is the same as Ganlan, but it can also be frozen ......

(1) Preparation 1 Select the ear field. The choice of ear canal is crucial for black fungus production. The general principle is multi-light, large areas with high humidity and little bacteria. One is to choose places near water sources, such as beside a river stream, beside a reservoir, or beside ......

Hot summer rain is the most harmful to vegetables. By then, the main work should be done as follows. After the hot rain storm, it is best to organize artificial watering immediately and water the cold spring or well water to wash away the sediment adhering to the stems and leaves. In order to reduc ......