How to manage wheat during the greening period?

When spring comes, wheat also enters the greening period. At this time, all growers need to play a 12-point spirit and do field management work. At this stage, field management is very important. It can promote wheat growth and lay a solid foundation for high yield and income.

Wheat greening period is a key period for spring tillering and forming new roots in spring. If improper management leads to the contradiction between above-ground growth and underground growth, and the contradiction between effective tilling and ineffective tillering, it will affect the robust growth of wheat seedlings. In order to cultivate strong seedlings, we should focus on the preservation and warming, and supplemented with fertilization. The goal of spring management is to promote winter sputum, increase spring sputum, promote roots, control wang, ensure sufficient effective number of panicles, achieve the purpose of large spikes and large grains, and lay a good foundation for high yield and high yield.

Seedling management

The main goal of the rejuvenation period is to promote the combination of control to cultivate strong stalks.

1 For the strong seedlings with a total stem number of 700,000/667 square meters before winter, the main control is to control and control the combination. The key is to loosen the soil, increase the temperature and ensure the heat, increase the effective tillering, and reduce the effective tillering.

2 For the medium seedlings with a total stem number of 50-700,000/667 square meters before winter, the insufficient total number of stems before winter and insufficient number of spikes are the main reasons for the yield. The key measure is to keep the winter and increase the number of springs, grab the number of spikes, and timely recover the green fertilizer, pour back the green water, and try to get more spikes.

3 For the field where the planting is late, the soil fertility is poor and the bottom fertilizer is insufficient or the wheat seedling has been damaged by freezing, the weak seedlings with the total stem number below 500,000/667 square meters, timely irrigation, appropriate application of green fertilizer, and strive for early spring tillering, promote The wheat seedlings are rapidly transformed.

Field management measures

1, spring

Spring can help to protect the earth, improve the ground temperature, promote roots and strong, and eliminate weeds, usually in early April. Spring must guarantee quality, otherwise it will not play its due role. In order to ensure the quality of spring sorghum, it is generally appropriate to start the shovel when the surface begins to whitish after the spring. The premature sputum is not broken, and the clods are dried up too late. The suitable tool for the depression is iron T-shaped enamel, which is 3 to 4 cm deep. Wicker-woven wicker plaques are placed behind the shovel to improve the quality of the soil and the seedlings to improve the quality of the shovel.

2, irrigation

When the temperature of 5 cm is stable and passed above 5 °C, the wheat field can be fully frozen and then water can be poured. Generally, the water is poured in the middle and late April; combined with irrigation, 10 to 15 kilograms of urea is applied per 667 square meters, and the second water is poured at intervals of 8 to 12 days, and the urea is replenished according to the seedling stage before the second water or the third water. The total amount of topdressing of 667 square meters is 20-30 kg.

3, control weeds

The use of chemical weeding must master the following three points:

1Selecting herbicides according to local conditions For many years, in addition to wheat-specific herbicides, such as clodinafop, flufensulfuron (mainly controlling monocotyledonous weeds, such as foxtail, valerian, wild oats, etc.), weeding suitable for wheat field use The main agents are dichlorotetrachloro, chlorofluoxyacetic acid, oxafludone, etc., mainly for controlling dicotyledonous weeds, such as Cyclobalanopsis, Ash, Amaranth and the like.

2 grasp the timing of spraying the best time for chemical weeding in winter wheat fields before the wheat seedlings, the best period to control weeds in the 2 to 4 leaf stage, because at this time, winter weeds and early spring weeds are not large, late spring weeds It is still small and tender, and the liquid can function normally and the effect is obvious. If the medicine is sprayed after jointing, because the weeds are large, the effect of killing grass is not good, and it is easy to cause phytotoxicity of crops.

The spraying dose depends on the temperature and the number of weeds, but not excessive, otherwise it will cause phytotoxicity. No matter which dose is used, it should be sprayed evenly according to the topography and wind direction. In the evening, the plant has the strongest physiological water absorption, so it is effective to spray the drug in the evening, and the herbicidal effect is good.

The above is the management of the wheat greening period, the content is for reference only. The growers need to adjust accordingly to the growth of the local wheat to achieve maximum management results.

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