In the late autumn and early winter, the water temperature dropped. When the water temperature dropped below 20°C, the food intake of the astragalus decreased. When the water temperature dropped below 15°C, it basically stopped feeding and entered the hibernation state below 10°C. The.......

Since there is no official registration of herbicides for seedlings in China, the use requirements are relatively high. The following methods are recommended to control weeds: (1) In the seedbeds on live or transplanted plants, glyphosate can be used first. Old grass is dead, and then land pre.......

The harvested grapes are still living organisms as they grow on trees. The following measures can effectively prolong the storage period of grapes. One, timely harvesting grapes harvested too early or too late, are not resistant to storage, judging the indicators of fruit maturity, the most im.......

According to experience and practice, the most ideal is to select 2-3 years of age of goldfish, fat and thin healthy fish for retention broodstock. Because of the 2-3 year old fish, the breed characteristics and genetic genes have been relatively stable, the sexual desire is strong, the vitali.......

Symptoms: The onset of the seedling stage, the appearance of chlorosis on the front, followed by yellowing, and eventually produce irregular yellow spots, in the wet environment, the back of the leaves produce a layer of purple and black mold. Plant disease, usually occurs in the lower leaves,.......

First, the application of nitrogen fertilizers (1) nitrogen fertilizer, although high nitrogen content, but a single component, is incomplete fertilizer, should be mixed with phosphorus and potassium fertilizers, the ratio of 2:2:1. Ponds with more silt may not use potassium fertilizer. (2) Be.......

A good grasp of cold and warmth to the sheep house should always check, where there is a dilapidated air leakage in time to repair, doors and windows to hang straw. Special attention should be paid to snowstorms, and you should block the wind and snow. Grasping reasonable grazing grazing shoul.......

Broccoli, also known as broccoli, is a kind of health-care vegetable with complete nutrition and high economic value. The product has a long period of supply. In addition to fresh food, it can be quick frozen and dehydrated, resulting in high production efficiency. I. Variety selection 1 Green.......

The death of eggplant has become a major obstacle in the production of eggplant, often resulting in a significant reduction in yield or even an unacceptable harvest. This has caused great economic losses to vegetable growers. The main causes of death of eggplant are: inappropriate soil, improp.......

The new cold-tolerant cucumber varieties newly cultivated by Liaoning East Asia Agricultural Development Co., Ltd. have been widely promoted in the north and performed well. Characteristics: The variety is precocious, disease-resistant, high-yield, cold-resistant and low-temperature resistant........

1, bottom quality improvement. The bottom sludge of the pond is preferably loamy, and its fertilizer retention and water retention properties are strong. Sand has poor water retention properties; clay is turbid, and toxic gases and large amounts of oxygen are often produced due to over-thick h.......

Pigs of different origins and weights are raised in a circle and often bite each other to affect the health and weight gain of pigs. Therefore, according to the physiological characteristics of pigs, rational grouping, maintaining a suitable breeding density, and adopting an effective parallel.......