Field Management Measures for Returning Green Wheat

The returning green period of wheat refers to the fact that after the average daily temperature has steadily returned to above 0°C, the wheat slowly recovers and grows. After 50% of the plants grow, the newly grown leaves stick out from the leaf sheath 1 to 2 cm, and the field turns from dark green to blue-green. The wheat returning period lasts for about 1 month. The characteristic of fertility is that the plants continue their rooting, leafing, tillering, and ear differentiation. When they get up, the spring leaves appear in 3 leaves, and the panicle differentiation from the single-edge stage to the double-edge stage. The main goal is to promote the early return of wheat to wheat, grow steadily, grow strong, and strive for big spikes. "At the time of the horror festival, the girl did not stop." At present, the city's wheat has begun to return to green, timely management of wheat fields in the spring, scientific management of fertilizer and water, timely conservation and conservation of grasshoppers, promote the growth and development of wheat roots and tiller growth, increase the rate of tillers into the ear. The main management measures:

1. Scratch and repression

In the return period, it is necessary to mark the buckwheat in a timely manner, especially under drought conditions, which is particularly important for the growth of wheat. Scratching can form a layer of mellow soil on the surface of the soil, which can cut off the capillary, reduce the evaporation of water, and help increase the temperature of the ground. In the early freeze-thaw stage, it is an effective measure to maintain suitable soil moisture content, postpone the return of green water, and increase ground temperature.

In the rejuvenation period, the soil can be crushed and the cracks can be bridged to make the surface layer of the soil that has been frozen and thawed loose in the winter. This makes the soil and the root system close to each other, which is conducive to the absorption and utilization of the root system and the reduction of water evaporation. Therefore, for wheat fields with extensive site preparation and planting, the remediation can be carried out in the early spring after soil defrosting to sink the soil, bridging the cracks, reducing water evaporation and avoiding cold air invading the frozen wheat seedlings near the tillering festival; for dry wheat fields without irrigation conditions The timely repression of the soil after defrosting can promote the upward movement of the soil in the lower layer of the soil, and it can enhance the soil moisture, protect soil moisture, and resist drought. Compression should be combined with slashing, and it is generally followed by pressing squatting so as to achieve the effect of Panasonic. It serves to increase the temperature of the squat.

2. Follow the application of green manure

Returning to the green period can increase spring tillering, consolidate the tillering before winter, increase the number of panicles per unit area, and promote the enlargement of the middle leaves and the extension of the internodes of the base. Therefore, in Daejeon production, it is necessary to decide whether to top-dress fertilizers based on the conditions of the seedlings and the soil. The topdressing amount generally does not exceed 1/4 of the total nitrogen fertilizer. Phosphorus-deficient wheat fields are used for digging 10 kg of ammonium diammonium phosphate per acre. For weak seedlings due to various reasons, it is very advantageous to turn green fertilizers to weaker and stronger ones and increase the number of panicles.

3. Watering green water

At present, wheat has gradually entered the returning green period, and the watering focuses on wheat fields that have not been poured during the winter, are severely deficient during the wintering period, and have a severe water deficit in the 0-5 cm soil layer during the returning green period. Especially when the birthing section is in the dry soil layer and affects the return of green, it should be poured back to Qingshui in time. Generally, the average soil temperature of 5 cm above 5 cm soil layer is above 5 °C, and the daily average temperature is above 3 °C. The top soil is frozen overnight, and it is appropriate for the water to seep through the soil. It is advisable to water and infiltrate before 10:00 am to 4:00 pm. Micro-sprinkler irrigation method can be used for watering, and the general mu water volume is about 40 cubic meters.

Baby Electrical

Baby Electrical,Baby Hair Clipper,Baby Manicure Set,Safety Baby Hair Clipper

NINGBO YOUHE MOTHER&BABY PRODUCTS CO.,LTD , https://www.oembreastpump.com