How to identify the three major diseases of Chinese cabbage? The three major diseases of Chinese cabbage are cabbage virus disease, downy mildew and soft rot. (1) Symptoms of Chinese Cabbage Viral Disease: 1 The onset of disease at the seedling stage begins with clear veins appearing from the hea

First, the growth characteristics of the sweet tea in the temperature of 2-3 months stable at 13 °C above the emergence of new shoots, and grow new strains on the perennial. Sweet tea is clustered, with a narrow canopy and more standing plants. In July, the temperature of high-altitude mountaino

After fertilization in ponds in autumn, the fish species are generally more robust and adapt to the cage environment. At the same time, overwintering of cascading caisson in winter, not only the species weight of the fish species was less than the wintering species of the pond, but also the fish be

The main raw material: wolfberry. Appliances: Squeegee clips, porcelain plates, bamboo knives, cups, etc. Production Method: Capture quails generally in spring, summer and autumn. Use rubber gloves and eye-protective mirrors when capturing. The purpose of the capture is mainly to take the secreto

Pay attention to the selection of feeds for the different species and stages of different animal species and different feeding stages. For example, when feeding large fast-growing broilers, high-energy, high-protein feeds should be used to meet the needs of rapid growth; and for feeding broiler chi

The main symptoms of the disease at the adult stage, the lesions mostly from the leaf margin inward development, was "v" shape, yellow brown spots. The leaf tissue around the lesion is pale yellow, with no obvious boundary between the Ministry of Health and the Ministry of Disease. Someti

First, clutch slip 1. The phenomenon of low-level start slowly, high-grade start difficult, sometimes jitter; tractor traction decreased; when the load increases, the speed is fluctuating, or even stop, but the sound of the internal combustion engine has not changed; severe clutch overheating, fri

Because the fish's metabolism is closely related to the water temperature, their growth is mainly in the summer and autumn, and in the winter, due to the lower water temperature in the pond, the fish activity is reduced, the fish eat less, the metabolism is very slow, and the growth rate It wil

First, the current litchi, longan results of different varieties of trees, different conditions of treatment advice 1. Premature Litchi (March Red): In the normal year of mid-late November, flower spikes are collected. To fertilize irrigation in early November, the general results of 50 kg of tre

When the tree vigor is excessively prosperous, the branch growth will predominate, which will result in poor flower bud differentiation and nutrition, which is not conducive to the formation of flower buds. When reconstructing this type of branch, it should be mainly "slow", extend the le

The premature aging of Rice is characterized by stems and leaves wilting and premature aging after heading to maturity, resulting in poor grain filling and increased cereal crops and reduced yields. The masses are called "stand culms dead" or "back stalks." According to a surve

Zhang Chunyu, Chaoyanggou Town Government, Zhangzhou County, Heilongjiang Province The Dongfanghong caterpillar tractor has eight bolts on each side of its shell. Its role is to connect the drive wheels, the large reduction gears and the drive hubs, and transmit power externally, which is subject