Spring garlic production management technology

Garlic is Xuzhou's main exporting and exporting vegetable variety. With the temperature rising, the city's garlic has already entered the middle stage of growth. The garlic has gradually expanded. This period coincides with the critical period of production. The management should focus on the following tasks:

First, do a good job of supplying water. As garlic enters the critical period of water demand, such as the expansion of garlic and the increase in temperature and windy weather, the demand of garlic for water increases. The garlic farmers should pay full attention to the moisture management of garlic fields, and strive to pour (garnish) garlic once. Water to meet the demand of garlic for water expansion.

The second is to do a good job of supplementing fertilizers. The key period for garlic to absorb NPK is concentrated in the elongation of garlic-garlic bulbs. Due to the different fertilizer levels of farmers, the differences in the growth of the plots are obvious. Some of the plots have yellowed leaves, and the growth is thin and other signs of de-fertilization. For this reason, the work of supplementing fertilizers out of roots should be done as appropriate. First, combined with irrigation, with water fertilization (flooding or spreading), Mushi urea 15-20 kg. The second is to spray the fertilizer out of the root, spraying 0.5% urea, 0.3% potassium dihydrogen phosphate or other organic fertilizer.

The third is to control pests and diseases. In the middle and late stages of garlic growth, various leaf diseases such as soft rot, leaf blight, and rust, and insect pests such as garlic sprouts, thrips, and leaf miners are easily caused. Among them, soft rot is a bacterial disease, and yellow-white streaks can penetrate the entire leaf. When the humidity is high, the diseased part is yellow-brown and soft rot. The early stage of the disease can be sprayed to kill the wettable ultrafine powder or copper carboxylate; the leaf blight begins at the tip of the leaf with white dots, and the irregular shape or oval gray or grayish brown lesions appear after expansion. , which produced black mould. Drain the water immediately after the rain, timely spraying chlorothalonil, metalaxyl MnZn, anti-virus bactericide and other fungicides; rust disease department often appear raised brown spots, orange powder after the epidermis rupture, early onset of the disease in time Spraying with highly effective low (no) poisons such as triadimefon is controlled. In addition to the use of sweet and sour liquid or light trapping, insect pests should be promptly sprayed or rooted and prevented by high-efficiency, low-noxious agents such as roxibine, matrine, phoxim, and dichlorvos.

The fourth is timely harvest. One is to collect moss in time. For garlic, which is mainly harvested with garlic, generally when the length of the garlic grows to 15-18cm or more, the curd is bent like a hook, and the moss is obviously enlarged. When the color changes from green to white, it can be harvested. The second is timely harvest of garlic. With the goal of selling dry garlic, it is generally appropriate to harvest dry garlic for about 20 days after harvesting. At this time, most of the garlic plant's base leaves are dry, pseudo-stems are soft, and the force is applied to one side of the ground to show that it is not brittle and has toughness; in order to keep fresh garlic on the market, it is generally harvested 5-7 days ahead of the harvest time of garlic to keep it crisp. quality.