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How about sowing wheat after frost? How many catties are suitable

DailyBird Culture 2021-10-09 1 0
As one of the three major cereals, wheat

is one of the most important rations in China. Its planting range is widely distributed, especially in the north, it is the main fine grain crop. Of course, due to China's vast territory and different climates, the time for sowing wheat varies from place to place. Then let the old yellow calendar introduce to you, how about sowing wheat after frost, and how many kilograms are appropriate.

霜降后播种小麦

how about sowing wheat after frost? Frost can grow wheat. Frost season is the golden time to plant wheat. As the saying goes, "cold dew rape, frost will drop wheat". Please seize the time, do not miss the agricultural time, and sow in time to ensure that all seedlings, neat seedlings and strong seedlings are produced. Lay a foundation for high yield in the afternoon season next year.

how many kilograms of wheat can be sown by frost? Wheat can be sown by appropriate frost, but pay attention to the number of seeds. Taking Shandong Province of China as an example, early wheat is sown at 9-12 kg in cold dew; When frost falls, the sowing amount should be increased, which is more appropriate at 10-15 kg.

frost winter wheat field management I. watering and supplementary irrigation to promote seedling and foot wheat emergence. The appropriate soil humidity is 70% - 80% of the field water capacity. For wheat fields without watering before sowing, with poor surface moisture and difficult to ensure seedling emergence, mengtou water should be poured as soon as possible to promote seed germination and seedling growth and ensure the basic seedling quantity. In case of rain after sowing or wheat field watered with hooded water, hoe in time when the moisture content is appropriate to break the hardening. Wheat fields with appropriate moisture content should avoid watering with blindfold water.

2. Check seedlings and reseed seeds to promote the emergence of whole wheat seedlings. During the emergence period, check seedlings in time. For places lacking seedlings and ridging, soak seeds of the same variety and reseed them as soon as possible; Or at the 3-4 leaf stage of wheat, move density and supplement dilution. When transplanting, the depth of soil cover shall be "no pressure on the top and no white dew under the bottom". After seedling filling, water the seedlings firmly and add fertilizer appropriately to promote early development and ensure the integrity of the seedlings.

III. adjust measures to local conditions, and classify and manage wheat fields with appropriate moisture content before sowing, good sowing quality and normal emergence. Generally, field management is not required within one month after sowing. From the tillering stage of wheat to the beginning of overwintering, according to the changes of air temperature, precipitation, soil fertility, moisture content, population size and seedling growth within one month after sowing, Take targeted pre winter management measures.

and

for wheat fields with poor soil fertility, insufficient application of base fertilizer and lack of fertilizer symptoms, we should seize the favorable opportunity before winter to apply fertilizer and water, and timely plough and loosen the soil to promote roots and tillers. For wheat fields with sufficient base fertilizer, normal growth, suitable population and soil moisture, topdressing and watering are generally no longer required before winter, but only middle tillage and hoeing. For flourishing wheat fields with appropriate soil moisture, no Topdressing and watering before winter.

and

for late sowing weak seedlings, under the condition of sufficient soil moisture, it is not suitable to irrigate winter water, so as not to reduce the ground temperature and affect seedling growth. It can shallow hoe and loosen the soil, increase temperature and moisture, promote roots and tillers. The main direction of pre winter management is to promote roots and tillers, promote weak and control prosperity, cultivate strong seedlings and ensure the safe overwintering of seedlings on the basis of complete and uniform seedlings.

and

IV. intertillage suppression to promote Miao Zhuang. After each rainfall or watering, intertillage should be timely to preserve moisture, remove hardening, improve soil ventilation conditions and promote the robust development of roots and tillers. If the group is too large and prosperous, it can be deeply cultivated, cut off roots or suppressed to control prosperity and turn strong. For wheat fields with extensive cultivation and more rough garbage, suppress the rough garbage before freezing, crush the rough garbage and make up the cracks, which can play the role of heat preservation and moisture conservation. Wheat pressing shall be carried out after noon to avoid frost suppression and seedling injury in the morning. Saline alkali land should not be suppressed.

v. timely winter irrigation and seedling protection for overwintering. Winter irrigation must be carried out for wheat fields with straw returning to the field, rotary tillage and sowing, soil suspension and lack of moisture, so as to stabilize the soil, promote the development of wheat packing and tillers, and ensure the safe overwintering of seedlings. Winter irrigation is generally carried out when the daily average temperature is about 3 ° C. It is completed before freezing. Generally, the amount of water per mu is 40 cubic meters. Flood irrigation is prohibited, and the soil is hoed and loosened in time after pouring.

and

plots with serious underground pest damage, select appropriate drugs to make toxic soil, open shallow ditches beside the roots to sprinkle medicinal soil, then cover the soil, or combine hoeing to apply medicinal soil. It can also be mixed with water and watered along the ridge to control grubs, needle worms and other underground pests. In the 3-4 leaf stage of wheat, when the daily average temperature is above 10 ℃, weeds in the wheat field shall be controlled in time. According to the occurrence degree of broad-leaved, dicotyledonous, monocotyledonous and gramineous weeds in different fields, herbicides shall be reasonably selected, and herbicides shall be sprayed in strict accordance with the medication instructions to prevent re spraying or missed spraying.

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