Symptoms mainly affect the leaves. Newborn round to elliptic lesions, brown or dark brown, with multiple ring veins on lesions, surrounded by chlorotic halos, sized 3–10 mm. When the humidity is high, the lesions on the front face are dark brown moldy, ie pathogenic conidiophores and conidi ...more...

1. Selection of solid phase carriers There are many types of carriers, including cellulose, cross-linked dextran, staphylococcus polystyrene, polyacrylamide, and the like. There may be a pit plate, a test tube, a bead or the like from the form of use. Polystyrene pits are the most widely used carri ...more...

First, the main features of spray granulation dryer : 1. The drying speed is fast, the surface area of ​​the liquid is greatly increased after atomization, and in the hot air flow, 95-98 % of the water can be evaporated instantaneously , and the drying t ...more...

There is no special antidote for salt poisoning in pigs. Poisoning pigs often die because there is no good treatment. The author uses soya milk to achieve a certain effect, which is described below. The etiology of salt is an essential nutrient for pigs. Appropriate amounts of salt can promote ap ...more...

Purple plum generally adopts grafting method to breed, but the cost is high, propagation is slow, variation is easy, and lifespan is short. In recent years, the author carried out autumn and winter cutting technique tests on purple peony, the results show that the method is low-cost, fast, and the ...more...

Enzyme labels include enzyme-labeled antigens, enzyme-labeled antibodies, and enzyme-labeled SPAs. The quality of the enzyme label is directly related to the success of the immunoenzyme technology, so it is called a key reagent. The most commonly used enzyme label is an enzyme-labeled antibody, whi ...more...

Due to the serious damage caused by local spider mites, last week I arranged for staff to irrigate the cut roses in the greenhouse. The pesticide was phoxim, and I had no idea that serious phytotoxicity had occurred. Some sprouts turn golden brown overnight. In order to solve this problem, I began ...more...