What is the difference between single door, double door…

A: A single-door refrigerator generally refers to a refrigerator with only one door. It has an evaporator, which can store a small amount of frozen food. It is a refrigerator popular in China, and it has basically disappeared on the market. A two-door single-temperatur

Pay attention to strawberry powdery mildew in greenhous…

Powdery mildew is a common and important disease in strawberry cultivation in solar greenhouses. It mainly damages leaves, flowers and fruits. The leaves were infected. In the early stage, a thin layer of white mycelium grew on the back of the leaves. As the disease progressed, the leaves curled u

What is Urine Compound Fertilizer?

From the perspective of chemical fertilizer production methods, a compound fertilizer whose nitrogen source is urea is called urine-based compound fertilizer. Balanced fertilization is a new technology that provides timely and balanced nutrition for crops based on crop nutrient characteristics, s

Maize leaf spot T race ear rot

Symptoms T-type male sterile lines are infected with the T race of the T. brassicae strain and the diseased part of the plant produces an irregular gray-black moldy zone, causing ear rot, severe ear rot, and black moldy seed, which is different from that of the small spot pathogen. O race. T races

There are several kinds of leeches that cannot be left

Poor shape Persons with small size, deformity, incomplete limbs, or suffering from self-bite and chronic diseases should not be left to breed. Low fertility In general, there are not less than 4 females who are born at the beginning of the breeding season, and no less than 6 female mothers aged

There are several kinds of leeches that cannot be left

Poor shape Persons with small size, deformity, incomplete limbs, or suffering from self-bite and chronic diseases should not be left to breed. Low fertility In general, there are not less than 4 females who are born at the beginning of the breeding season, and no less than 6 female mothers aged

How to use microbial fertilizer rationally

The exertion of microbial fertilizers is affected not only by its own factors such as the type and amount of effective microorganisms contained in fertilizers, but also by other factors such as soil moisture, organic matter, pH, etc. Fertilizer selection and application should pay attention to rat