Winter Wheat Spring Control Measures in Northern Xinjiang

The area includes Tacheng, Emin, Yumin and Wusu, Kuitun, Shawan, Shihezi, Manas, Hutubi, Changji, Miquan, Fukang, Jimsar, Qitai, Mulei, Tayung Basin. And counties (cities) directly under the State of Yili. From the end of March to early April in the region, wheat began to turn green. In response to the coming wheat return period, the spring tube clear paper was prepared for reference by local technicians and farmers.

Return to Youth Management

After the beginning of spring (from the end of March to the beginning of April), it will spring in time, and it will be 5 centimeters deep. It is better to use sloping or slanting. Returning green manure should be topdressed on the eve of wheat returning to green or returning to early Qing, and it should be applied to weak seedlings. Pre-winter acres total less than 400,000 seedlings, wheat seedlings grow weak wheat fields, late-seeding wheat fields should be on the eve of wheat return to green or return to the early stage of urea per acre 8 to 10 kilograms, using fertilizer machine to apply, with snow on the top dressing or rain Before dressing.

Control of field monocrop weeds such as wild oats, green foxtail, and valerian, is generally effective with control of fleas, 6.9% of glutinous milk is used with 50-60 ml/mu, and is sprayed on weeds at the leaf stage of 3-5 leaves. Shi. Control diatomaceous weeds in fields such as ash, Solanthes sativus, S. vulgaris, and wild rapeseed. Use 72% 2,4-D Butyl Ester EC 50-60ml or 75% 100-Carultane Net EC 50ml/75g/mu % 1.2% DuPont Superstar Suspension was sprayed on the foliar leaf during the 2 to 4 leaf stage.

When the leafhopper rate of wheat is more than 10%, or the number of wheat aphids is more than 500 per 100 plants, or the number of wheat tanned motor is more than 200 per 100 ears, then 10% imidacloprid WP or 1.8 should be used per acre. %Avermectin. When the powdery mildew and rust disease index reaches 20 to 30%, use 25% triadimefon WP or 12.5% ​​diniconazole (dilikon) wettable powder; when the bacterial leaf streak occurs, use 72% of agricultural use Streptomycin can kill 2000 to control.

Frost damage to the management of wheat fields

Freezing injury in winter: According to the symptoms of plants after freezing, the frozen injury can be divided into two categories: The first type is severe freezing injury, that is, the main stem and the large shoots are frozen to death, and the heart leaves are dry. The second type is general freezing injury. The symptoms are as follows: the leaves are dry and yellow, but neither the main stem nor the big ones are frozen. The remedial measures after the occurrence of winter frost damage: First, topdressing nitrogen fertilizers in a timely manner. After the thawing in the field for the first time, topdressing available nitrogen fertilizers, applying 10-15 kg of urea per acre, and applying ditching to increase fertilizer efficiency; In the jointing stage of wheat, combined with water-saving drawing and fertilizer, 10~15 kg urea was used per acre.

Spring cold: in northern Xinjiang, spring is prone to strong cooling weather, the cooling rate is large, the minimum temperature reaches below 0°C, the leaves are frozen, and the main stems of individual wheat fields die. Early spring prevention of cold and freezing injury: First, moderate growth inhibition of growth in wheat fields, the main measures are early spring suppression, spraying Zhuang Fengan, Chestnut and other inhibitors for chemical control. The second is irrigation to reduce the temperature of the ground and increase soil temperature. The third is that fuming smoke raises the temperature on the ground, which has the effect of reducing frost.

Anti-staining

Snowfall in Changji, Tacheng, and Yili Prefectures in the north of the Changjiang River is frequent, and the snow is thick. When the temperature rises in the spring, the snowmelt will easily lead to water accumulation in the field, resulting in poor development of the root system of the wheat. The plants will be tender and weak, and lodging may occur later. At the same time, the humidity in the wheat field is high and the occurrence of diseases, pests and weeds is aggravated. Therefore, it is not necessary to return to Qingshui, and pay attention to field drainage, especially at low-lying areas.

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