Spring Field Management Techniques of Wheat in Longdong and Weinan of Gansu Province

Timely topdressing and promoting the transformation of seedlings. In the early spring, the soil is defrosted and the fertilizer is sown in time. The amount of application depends on the condition of the seedlings. The seedlings of one type of seedlings are about 5 kg, the second type of seedlings are about 7 kg, and the three types of seedlings are about 10 kg. It is preferred to use a mixed application of urea and diamine. The mixing ratio of urea to diamine is 3:2.

This method can be used to topdress the mountain dry land (including the dry land of Qidong Mountain and the dry land in the southern part of Anhui Province) with full-film covered soil and poor soil moisture. It is best to apply it in the snow and before the rain. The application amount depends on the seedlings. . In the wheat field, the application of soil dung or “ash ash”, which is mainly composed of grass ash, can play a role in protecting and supplementing soil nutrients, promoting wheat growth and preventing spring damage.

Defamation, suppression and protection. In the spring, it is beneficial to reduce the evaporation of soil moisture, and it plays a role in lifting and protecting the soil. The suppression makes the wheat roots in close contact with the soil, which is beneficial to the roots to absorb nutrients and promote the weakening of the seedlings.

Cultivate weeding. After the wheat is greened, it is timely cultivated and weeded, warmed and lifted, promote root development and growth, weed control, avoid weeds and wheat to compete for water, and affect wheat growth. Weeds can be used to remove weeds, but we must grasp the dosage to avoid phytotoxicity and affect the normal growth and development of wheat.

Chemical control prevents lodging. For early sowing, over-density Wangchang wheat field, whole-film-covered soil-seeded wheat wheat field and high-stalk variety wheat field, spray 20% Zhuangfengan in the period of wheat returning to the body, 20-30 ml of fertilizer and 20-25 kg of water evenly. Spraying to control the excessive growth of the plants and promote the roots to prevent the wheat from lodging in the late growth period.

Control pests and diseases. Do a good job in predicting and forecasting pests and diseases, early detection and early prevention, especially wheat stripe rust in southern Anhui, pay close attention to the disease, when the prevalence rate of wheat stripe rust reaches 5%, use 15% of the powder rust 50-70 grams, 50 kg of water Spray control is carried out.

Prevent spring wheat damage. The spring damage of wheat in the east and south of Fujian Province has occurred. It is necessary to do a good job in preventing the "cold spring" and night frost damage, pay close attention to weather forecasting, and strengthen seedling monitoring. In case of freezing damage, effective remedial measures should be taken to promote their recovery.

It is strictly forbidden to graze in wheat fields. Grazing in wheat fields is extremely harmful to the growth of wheat, especially in mountain drylands. The soil is relatively faint, and the animals are indigo, which will take the wheat out. The whole film is covered with soil and the small wheat field is broadcasted. It is strictly forbidden to trample the human and animal to protect the mulch film, so as to achieve the purpose of multi-layer coating.