Today is the Lantern Festival, the Spring Festival is warm, and everything is recovering. At this time, the new wheat leaves in the field also grew to 1-2 cm, and entered the rapid growth period. How should farmers use this critical period for the management of this period? Generally speaking, when the daily average is stable above 0 °C, the wheat plants slowly recover and grow, and the heart leaves grow. The wheat seedlings from the greening to the month before the rise are the wheat greening period. The time is generally from mid-February to March in February. Between the middle and the middle. During the rejuvenation period, the wheat seedlings will continue to root, leaf, and tiller. This is the second critical period of wheat tillering. Wheat will generally increase the number of tillers by 30% and 40%. For the plots planted late last year and poorly distributed before winter, we must grasp the good opportunity of this wheat to return to the green period, strengthen the field management measures, effectively promote the tillering and spike differentiation of wheat, and ensure the healthy and robust growth of wheat. The main task of the reintroduction management is to promote the early return of wheat to the body, stable, healthy seedlings, scorpions, and full ears. Key points of management measures during the rejuvenation period First, reasonable control of wheat seedlings The regreening stage is the key stage of wheat seedling panicle differentiation. If it grows too fast, it will affect the differentiation quality of the seedling ear, which will cause problems such as small ear, small number of grains per spike, and insufficient grain. The reasonable control can prevent the late stage of wheat seedling from falling and avoid production loss. effect. The control of wheat seedlings can generally be carried out in the period of rejuvenation to the beginning of the body. It is possible to take the method of cutting the roots and spraying the control agent. If the spraying is controlled after the jointing of the wheat, it has no effect. In addition, the control of wheat seedlings must be determined by the variety and growth of wheat seedlings. In general, dwarf varieties and weaker wheat fields do not need to be controlled. Second, timely pouring good green water The actual watering of the green water should be controlled according to the actual situation and the seedlings. The overall time is generally between late February and late March. 1 Before the winter, the winter water that has not been poured or early poured into the green water, should be properly poured early, but it is necessary to avoid flooding and flooding, which is easy to cause water accumulation, roots can not be produced, and development is delayed, and it is easy to form a small old seedling. "Or dead seedlings. 2 In the winter before the winter, the winter water, wheat seedlings and strong wheat fields, as well as the plots that are planted late but have good sensation, can be poured late, so as to avoid lowering the temperature and affecting the normal return. 3 The winter wheat before the winter water and the green grass that is not lacking in water can be postponed until the wheat seedlings are poured back into the green water. In normal years, from late February to mid-March. Third, science to catch good green fertilizer Although the returning green fertilizer has the effect of strengthening and weakening the seedlings and increasing the number of ears per mu, the recovery of the green fertilizer should also be carried out according to the actual seedlings of the wheat field. 1 Before the winter, the seedlings are weak, the seedlings are yellow, the growth potential is poor, and the wheat fields with long growth, poor soil fertility and de-fertilization can be used when the surface begins to be frozen, and the early application and heavy application of the green fertilizer can be applied. Mu, for the phosphorus-deficient plots, should also be mixed with superphosphate or diammonium phosphate 20 kg / mu. 2 The number of seedlings is high, the seedlings are good, and the wheat fields that are too strong but not de-fertilized can be postponed until the wheat seedlings are raised (in early March) to control the number of tillers and increase the number of tillers. Increase the number of acres of panicles and guarantee the output of the later period. Fourth, timely spraying and weeding Weeding in the wheat field should be carried out before the jointing. Choose sunny and windless weather. When the temperature is above 10 degrees from 11:00 am to 2:00 pm, the labor-saving, time-saving and labor-saving chemical spraying method is adopted. In order to improve the herbicidal effect, spray should be applied evenly to avoid heavy spray and leak spray. V. 锄 æ¾ æ¾ æ¾ æ¾ æ¾ Temporarily cutting the soil in the wheat field can improve soil permeability, improve low temperature, promote root development, and play an important role in early greening and robust growth of wheat seedlings. At the same time, it can be cut off during the planning process. The capillary of the roots of the wheat seedlings can prevent the rise of the lower layer of water in the soil, and has a good preservation effect.锄 æ¾ æ¾ , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The field management of wheat during the greening period is actually not as difficult as you think. As long as the key points are grasped, the poor wheat fields can also be produced at high yields. Is the economic benefit not likely to increase? Dental sealing machine,sealing machin dental Foshan Ja Suo Medical Device Co., LTD , https://www.jasuodental.com
