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Wheat field management method (basic fertilizer)

VIEWS: times Release Date:2021-07-26

Wheat has a long growth cycle. The low temperature and low rain in the early stage lead to the slow decomposition of fertilizer. Therefore, the base fertilizer must be fully applied to ensure early tillering and large tillering of wheat plants.

Wheat field management method (basic fertilizer)

Wheat sowing

1. Seed requirements: purity ≥99%, clarity ≥99%, germination rate ≥85%, moisture content ≤13%, seeds are coated and dried.

2. Sowing depth: 2 cm

Wheat seedling management

1. Checking seedlings and replanting: After the wheat emerges, it should be checked in time. If it is found that there is a lack of seedlings and ridges, for the areas with a serious lack of seedlings and ridges of more than 10 cm, the germination can be used to reseed; Seedlings were transplanted and replanted at the 4-leaf stage. If the wheat seedlings are too dense, thin the seedlings in time.

2. Inter-cultivation suppression and weeding: Inter-cultivation is required from the beginning of tillering till the freezing period, especially after rain and irrigation, inter-cultivation must be used to break ground screeds and make up for soil cracks. In the first ten days of December, press seedlings according to the situation to inhibit the growth of vigorous seedlings.

3. Fertilizer and water management: Apply fertilizer according to the situation to promote the growth of weak seedlings. Plowing in time to prevent prosperous seedlings. In general overwintering period, there are 6-8 main stems and leaves, 4-6 tillers, and 7-9 secondary roots.

4. Turning green water: ①Wheat fields that have not been watered or watered early in winter or turned green and arid should be watered early, but to avoid flooding with flooding that may cause accumulation of water and retting of roots, new roots will not emerge, and development will be delayed. Form "little old seedlings" or dead seedlings. ②Winter water should be watered at the right time before winter, wheat fields with strong growth of wheat seedlings, and plots with late sowing but good moisture content can be watered appropriately at a later time to avoid lowering the low temperature and affecting the normal return to green. ③For the wheat fields that are not lacking in water before winter water and late watering and turning green, watering back to green water can be appropriately postponed until the wheat seedlings get up. In normal years, from late February to early mid-March

5. Topdressing during the re-greening period: ①Weak seedlings before winter, yellow seedlings, poor growth, and early sown long, poor soil fertility, and defertilized wheat fields. You can rush to apply early soil moisture and reapply to green fertilizer when the ground surface begins to thaw. ② Seedlings For wheat fields with large numbers, good seedling conditions, and prosperous but not defertilized wheat fields, the green fertilizer can be postponed until the wheat seedlings stand up (early March) to achieve control of the number of ineffective tillers, increase the number of tillers into ears, and increase acres. The number of ears and the purpose of ensuring later production.

6. Wheat field weeding: It should be carried out before jointing. Choose sunny and windless weather. When the temperature is above 10 degrees from 11 am to 2 pm at noon, use labor-saving, time-saving and labor-saving chemical spraying methods. In order to improve the effect of weeding, spraying should be evenly applied to avoid heavy spraying and missing spraying.

7. The main pests and diseases at the seedling stage: the bushy dwarf disease, yellow dwarf disease, soil-borne mosaic disease and underground pests should be controlled in time with pesticides and other methods.

Wheat mid-term management

From the beginning to the flowering period, this is the stage where vegetative growth and reproductive growth go hand in hand, with both the growth of roots and stems, and the differentiation and development of wheat ears.

1. Jointing period: It is a high-efficiency period for winter wheat production and fertilization. Top dressing should be applied universally and reapplied.

2. Irrigation: The jointing stage-booting stage requires a lot of fertilizer and water. The jointing stage and booting stage shall be irrigated with trickle furrow irrigation, even and thorough irrigation, flood irrigation is strictly prohibited. In particular, the booting stage is the critical period of water demand for wheat. Combine irrigation and chase the second fertilizer.

3. High plant height and risk of lodging need to be sprayed with chlormequat for control

Wheat reproductive growth management

1. Fertilizer and water management:

①Pour the blooming and filling water: the wheat enters the filling period 10-15 days after blooming, and it needs to be filled with water.

② Top dressing: The leaf color turns pale from heading to milk maturity period, and there is a tendency of defertilization, and foliar fertilizer needs to be sprayed.

③Wheat yellow water: water once about 2 weeks before the wheat matures to improve the field microclimate.

2. Prevent and control diseases and insect pests such as midge and malt bee

3. Harvest: Watering is forbidden 10-15 days before harvest, and the growth period and weather conditions of comprehensive planting varieties are harvested in a timely manner.


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