I. Pond conditions Shrimp ponds should have sufficient water sources, good water quality, no pollution, quality of water quality in accordance with the provisions of GB11607; the bottom of the pool is flat, there is less silt, and drainage is convenient; the area is 3-10 acres, and the opt.......
Release date: 2008-08-22
In electronic systems, the bridge between analog and digital worlds is a high-performance conversion technology. In pr.......
First, symptoms and causes
Fruit is onset in the near-mature period. At the early stage of the disease, brownish crescent-like or spot-like textures appear near the lenticels. With the development of symptoms, the lesions are slightly enlarged, the color is deepened, and the lesion.......
Control methods: 1 strengthen management, reasonable pruning, appropriate shade. 2 Manually kill adult worms and larvae, and promptly remove the damaged branches and burn them.
2. Coffee Leopard wood moth. Widely distributed, it is one of the common coffee pests that can harm a var.......
Tomato cultivation in summer is generally started in late May and transplanted in the field in mid-June. The fruit is listed in the middle and late August. Because the tomato growing season is in high temperature and rainy season in summer, physiological diseases are the common diseases th.......
Lateral branches of broccoli are commonly known as small flowers and small claws (homophones), that is, small flower bulbs with re-growth of lateral branches after main flower bulbs are harvested. This kind of side-branch flower bulb, if properly managed in the field, can still obtain high.......
(2) Put the cleaned and disinfected kettles and drums on each of 20 to 25 goslings per square met.......
The process of tea germination
The tea matures around mid-October and can be sown after harvesting. It takes about 4 to 9 months to start germinating in the spring of the following year. After the tea is sown in storage springs, it can germinate in the soil after more than 1 month........