Key points of agricultural production activities in Xiaohan

The arrival of the Minor Cold solar term means the official start of midwinter. In this cold season, farmers have also summarized a set of key points for agricultural production activities based on long-term production practice and climate and seasons. Now I will tell you about the guide to agricultural activities during the Minor Cold solar term.

1. Winter vegetables

(1) Key points of water and fertilizer: Scientific watering and topdressing. Topdressing should be done with drip irrigation in the form of water-soluble fertilizers with comprehensive nutrients and reasonable proportions. You can also apply organic liquid fertilizers such as alginate or humic acid with comprehensive nitrogen, phosphorus and potassium content along with water.

(2) Insulation and frost prevention: For open-field vegetable cultivation, crop straw and rice straw can be sparsely spread on the vegetable beds as long-term covering in winter. This will not affect the sunlight, but will reduce the wind speed between the vegetable plants, block the heat loss from the ground, and achieve the effect of insulation and frost prevention.

(3) Disease control: During the Lesser Cold season, there is more rainy, foggy weather and high humidity in the greenhouse, which can easily induce gray mold, leaf vein disease, blight, downy mildew, powdery mildew, etc. in plants. For prevention and control, aerosols or dust agents should be used, and pesticides should be used alternately.

(4) Greenhouse cleaning: Strengthen the greenhouse and promptly clear the snow on the front and back roofs after snowfall to ensure the safety of the greenhouse.

2. Fruit tree management

(1) Do a good job of winter pruning: Winter pruning should be carried out on apples, pears, peaches, grapes, etc. When pruning in winter, the main focus should be on adjusting the ratio of vegetative growth to flowering and fruiting.

(2) Strengthen garden cleaning: Do a good job of garden cleaning, remove dead branches and leaves, and reduce the number of pests and diseases.

(3) Cold and frost prevention: Take anti-freeze measures such as adding soil to the roots and whitewashing the tree trunks, and irrigate appropriately in case of drought.

3. Field crops

For grain and oil crops, wheat, especially wheat after rice, should be covered with soil and fertilizer to prevent frost damage. For rapeseed, attention should be paid to digging ditches for drainage and preventing water accumulation. Organic fertilizer should be mainly used for winter fertilizer application. High mountain tea gardens, especially those facing northwest that are vulnerable to cold winds, should be covered with straw, weeds or plastic film to prevent the cold winds from causing the tips to die back.

4. Animal Husbandry and Farming

The doors and windows of pig houses, cow houses and sheep pens should be closed to increase the temperature inside the houses. Cattle and sheep should go out to graze late and return early, and ensure proper ventilation and disinfection.

5. Aquatic farming

(1) Scientific feeding: As the water temperature drops, the food intake of the farmed animals decreases, so the amount of feed should be reduced accordingly. Vitamins and immune enhancers can be added to the feed to strengthen the body and improve immunity.

(2) Water quality management: appropriately deepen the water level, regulate the pond water quality, pay attention to pond disinfection while regulating the water, and take advantage of sunny weather to dry the pond, desilt it, and expose it to the sun.



The above is an introduction to some key points regarding agricultural production activities during the Minor Cold. In short, everyone should adapt to the climatic characteristics of the Minor Cold solar term in various places, do a good job in scientific agricultural production management, and strengthen wintering management, so as to lay a solid foundation for high yields in the coming year.