(1) Select.......

Seed pests should take measures as soon as possible, according to "safe, economic, effective," the principle of pest control, so that the loss is reduced to a minimum. The pest control methods commonly used in production include physical methods, mechanical methods, and chemical .......

First, black spot is a bacterial disease caused by Pseudomonas. After the onset of disease, the mushroom mushroom caps appear oval brown or dark brown spots, the initial needle-like, enlarged diameter of 2 to 4 mm, neat edges, and sometimes cracked cap. Control methods: control the tempera.......

In recent years, due to the expansion of the scale of farming, the economic value of farming has been reduced year by year. The practice of breeding shows that during the breeding process of the soft-shelled turtle, the male soft-shelled turtle has a faster growth rate than the soft-shelle.......

In 2012, when neuroscientist TED Talker, the inventor of James Kozloski's wife Sumali, worked at a nursing school in Connecticut, Connecticut, it was trying to deal with some hospitals with high infection rates. As the CDC recor.......

The free-range chicken breeding mode expands the space for chicken activities and the chickens get full exercise. Therefore, the free-range chickens are very lively. The cut feathers are more glossy than the captive chickens, and the meat taste is better than the chickens in the cages. Hig.......

Pruning should knock out all the side branches below the door. The leaves should be divided into weak branches and stem side branches, and old leaves and diseased leaves, and properly cut off the dense leaves, keep sparsely uniform, in order to facilitate ventilation. During the entire gro.......

We will find that potatoes are everywhere on our table. This is mainly due to the fact that there are many ways to eat potatoes, and its taste is very unique. The nutritional value of potatoes is also very rich, today Xiaobian Xiaobian came to explain to you about .......

Answer: In the winter, if the cherry tree bark layer suffers from vertical cracks, it is easy to cause pests and diseases. Therefore, it is very important to keep the tree cold. The trunk was tied to the grass before the advent of freezing, and 10 cm thick hay was tied to the trunk to prev.......

The oil-grain dish is a new variety of special dish, with strong adaptability and high economic benefit, it can be introduced into the plant in our city. The cultivation techniques are as follows:

1. Site preparation and soil preparation: choose land plots with long-lasting residua.......

In the middle and late stages of edible mushrooms, large amounts of nutrients are basically consumed. In order to enhance the stamina, it is necessary to chase the fertilizer properly to increase the yield. In order to increase the yield, the peasants should adopt the following measures to.......

The 20th anniversary of Shenzhen Social Health Center Service! In 1996, Shenzhen officially launched community health services. After 20 years of unremitting efforts, the community health service system has gradually become a basic .......