Winter wheat spring management technology

Winter wheat spring management technology

Kindness is the foundation, and good management is the key. Now that the earth is rejuvenating, and when everything recovers, wheat will also enter a critical period of management. Due to the low snowfall in the city since the winter, the spring management of wheat has also brought difficulties. In view of the current situation of the city's seedlings, public sentiment and weather, we should focus on the following aspects:
First, the repression and lifting of the earthworms in the early spring after the first check the flooding situation, due to the soil surface after winter is extremely easy to lose, a number of soil below the tillering section will affect the rooting, such wheat fields need to be lifted in the returning green period, so that the childbirth in the In the wet earth.
Second, timely planning, warming and promoting seedlings plan not only has a good effect of conservation, warming, weeding and other effects, but also has to promote weak seedlings strong, robust seedlings and other functions. All types of wheat fields should be grazing. When scratching, pay attention to the situation due to seedlings. In the late wheat fields, the rice crop should be shallow, and the roots should be prevented from damaging the roots and crops. For the Wang Miao and the leggy wheat fields, deep rooting should be carried out to control the growth of the shoots and turn the seedlings into strong seedlings; "Ding Ling" and the rain after a timely draw to suppress the return of salt and reduce dead seedlings. We must pay attention to the quality of the demarcation, and do a good job of delineating, drawing, leveling, and penetrating, leaving no waste, no pressure on the wheat seedlings. Before the jointing, strive to scratch 2-3 times.
Third, classification management, scientific fertilization watering (a) weak seedlings management. A type of weak seedling is due to the imbalance of carbon and nitrogen in the wheat field due to the straw to return to the field resulting in defertilized wheat fields. Before the wheat seedlings began to yellow, there was no timely fertilization in winter, and the spring wheat seedlings will continue to defertilize and yellow. In wheat fields, where there is no top dressing before wintering, the early spring should be applied quickly. Each acre can be applied with 20-25 kg of ammonium bicarbonate. The use of ammonium bicarbonate is about 10 days faster than the use of urea fertilizer. Water is applied promptly after application so that the fertilizer can be fully utilized. Promotes spring tillering into the panicle. The other type is late seeding weak seedlings. This part of the wheat field has better soil fertility, larger sowing volume, and late-seeding weak seedlings that are fertilized more before winter, and is mainly cultivated in the middle of farmland in early spring to increase the ground temperature, and the fertilizer and water are properly controlled to prevent field depletion and consumption caused by the population surge. Nutrients, fertilizers and water management generally have to be carried out until jointing, if the lack of moisture, can be watered in the return period, should be light water, should not flood irrigation, and timely loose soil, increase the temperature, promote seedling growth, the lack of fertilizer Late seeding weak seedlings can be combined with this watering ditch to apply 10-15 kg of ammonium bicarbonate.
(B) Wang Miao Management 1. Winter seedlings before the winter. Due to the rapid growth before winter, the consumption of nutrients is more, and the growth is weaker after turning green. In the event of early spring cold weather, freezing seedlings will also be killed. It is necessary to strengthen management early in the spring to consolidate the years of childbirth and increase the rate of tillers and spikes. Therefore, timely watering topdressing, for the winter wheat field has been applied after excessive fertilizer and good field moisture in the spring, after the soil thawing, it is necessary to plan as soon as possible to protect the temperature; in the wheat to jointing should be fertilizer and water attack. For winter wheat fields that have not been topped with over-fertilizers before wintering, and the fields are poorly plucked, pay close attention to fertilization after fertilizing. Apply ammonium bicarbonate as a good fertilizer, and apply 10-15 kg of Mushi in a timely manner to irrigate the plough, so as to prevent defertilization after turning green, and wait until you get up. In the jointing period, 15-20 kg of urea is chased with water.
2. Spring seedlings are prosperous, and in addition to strict control of fertilizers and water after returning to the spring, measures such as deep cultivating, repression, chemical transformation and other measures are also adopted. Chemical control is one of the effective measures to prevent the lodging of wheat, and it is higher for wheat plants or plants with large populations and strong growth. The variety, in the wheat's rise period, use 20% Zhuangfengan Emulsion 30-40 ml, add 30 kg of water spray to control plant growth, shorten the internodes of the base, reduce the height of the plant, increase the root activity and enhance the lodging resistance.
(c) strong seedling management. For wheat fields with good sensation and large population, the spring management measures must be controlled first, followed by promotion and control. Management must be done to control the excessive occurrence of spring tiller and promote the growth of the main stem and the big shoots. The strong seedlings in general high-yielding fields will not be fertilized, watered, or watered without fertilization during the period of greening and jointing. After jointing, combined with water-saving replanting joint fertilizer, to promote ear and panicle large; for poor soil fertility or general land, can be combined with watering to replant the body in the starting period; top dressing fertilizer should generally account for the total amount of fertilizer. 50% -60%, Mushi urea about 15-20 kg.

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