Only by cultivating strong seedlings before winter can we ensure that the wheat ears in the coming year will have large grain and multiple grain weight and high yield and good harvest.
The standard for strong winter wheat seedlings is: 7-8 leaves of the main stem before winter, 7-8 tillers per plant, 8-9 secondary roots, and the number of stems in the general wheat field, which is 1 in the next year. .5-2 times; the yield field is 1.2-1.5 times.
To achieve the above-mentioned strong seedling standards before winter, the following management measures must be taken: early detection of seedlings and seedlings, timely seedlings, sparse seedlings, and wheat emergence should promptly check the seedlings and seedlings in the wheat fields lacking seedlings and ridges. In order to reduce the gap between the replanted wheat field and the early seedlings; before replanting, you can soak seeds for 1 day at a ratio of 1 kg of 1 kg of water, and remove the seeds for 1-2 hours to replant; if the seeds are late, the seeds should be Carry out germination, so that the seedlings can be planted 2-3 days early; if the time is too late, the wheat fields that cannot be replanted can be combined with the seedlings and the seedlings for replanting. Transplanting should plant large seedlings, strong seedlings, planting deep to not bury the heart leaves, compacted, watered, covered with soil after planting; intercropping, sparse seedlings can ensure seedlings and seedlings strong. Therefore, it is necessary to carry out early seedlings and sparse seedlings for the "saplings" of the oversized wheat fields and the general wheat fields. Due to the combination of seedlings, seedlings and winter fertilizers combined with watering, due to the cultivation of seedlings and winter fertilizers, it is important to promote the seedlings and protect the wheat seedlings for safe wintering and to consolidate the tillers. For the general wheat field with weak wheat field or weak seedlings, it is necessary to catch the seedling fertilizer early in the three-leaf stage, and the artificial nitrogen fertilizer can be applied 15-20 kg per mu. The wheat field with stronger soil and stronger seedlings can be used in the winter solstice. Combined with winter water application of winter fertilizer, 10-15 kg of standard nitrogen fertilizer should be applied per acre; for phosphorus and potassium deficiency plots, 15-20 kg of nitrogen, phosphorus and potassium ternary compound fertilizer can also be applied; Spread the soil with 2000-3000 kg of fertilizer, or pour 500-600 kg of human waste. However, snow-covered wheat fields and salt fields cannot pour urine; high-yield wheat fields, ground fertilizers, seedlings, and feet are generally not required to be topdressed, in order to prevent the group from growing too much and causing late lodging. Look at the wheat field lyrics, timely water before the winter before the water, mainly refers to the weak wheat field or low-lying land, when the soil moisture content is higher than 15% in winter, may not water; if the soil is dry, the water content is less than 15% In the following wheat fields, you should pour winter water. The time of watering is 6-4 degrees on average, and it is most suitable for half a month from the beginning of winter to light snow. Rowing, rolling, soil-cultivation, and protection of cold-proof wheat should pay attention to the plan before winter. The paddle can increase the water content of the soil layer, increase the soil temperature, promote the robust growth of the wheat seedlings, and grasp the opportunity to water the wheat field or After the rain, the soil topsoil is “whitened†or “spottedâ€. For the long wheat field, you should draw a depth of 10-12 cm to prevent depression. Before winter, it is good to press 1-2 times on the wheat field.
First, it can reduce the evaporation of water, and it can prevent cold winds from attacking in the deep winter.
The second is to make the soil dense, strengthen the role of the capillary, improve the surface moisture of the soil, organic roots, and piers.
The third is to suppress the prosperity of the wheat field. However, soil wet and salty wheat fields cannot be crushed to avoid soil compaction or anti-salt (alkali). The rolling pressure should be selected after 10:00 am on the sunny day and before 4:00 pm. The role of soil cultivation in winter wheat fields is mainly to enhance the drought-resistance and cold-resistance ability of wheat, and to inhibit cockroaches and promote the effect of cockroach and bacon. The method is to combine the cultivating with the hoe to the roots of the wheat roots, but to grasp the thickness of the rammed earth, the main shovel is not to be buried.
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