Since the beginning of the spring, high temperature, dryness, and little rain have continued to occur in the arid belt and the southern mountainous areas in the middle of our region, causing the drought to worsen. In order to cope with the drought, Xiji County proposed to strengthen the management of autumn film-covered fields and drought-resistant seedling protection technology, which is currently a very effective key technical measure. We have issued a summary that all localities must select suitable drought-resistant sowing methods according to local conditions to effectively solve the problem of seedling emergence due to spring drought.
Autumn film management: Effectively grasping the protective measures for autumn filming, we must always check along the furrows one by one. Once we find that the film has been blown by the wind or the animal has stepped on it, take scientific and effective remedial measures and timely cover it with fine soil. Strictly prevent the wind from uncovering the film; serious ridges should be taken up with film, and do not lose soil moisture due to ridges and ridges.
Top Ling sowing: When the soil starts to thaw, and the frozen soil layer reaches 6 cm, grab the early sowing and sow the seeds to the permafrost. Make full use of the bottom tillers to promote the germination of the seeds.
Robbery sowing: When the local dry soil layer is 2-3 cm thick and the arable soil meets the rain before sowing, in order to avoid the difficulty of seeding after losing, the sowing date can be sown 10-15 days earlier. Sowing at any time to compact the topsoil to prevent running and affecting emergence.
Induce sowing: soak the clods 3-4 days before field sowing and press it once with stone cockles. After soaking in the morning ground, sowing, sowing with the pods to prevent running rakes, 2-3 days afterwards, so that the lower layer of water gradually Move up to sprout and emerge. This method is suitable for large-scale, poorly-grounded plots.
Picking up sowing: If the surface of the dry soil is shallow (3-4 cm), you can save 1-2 times on the day before sowing or at the dawn of the day when the dew is not dry and the ground is moist. †to reduce the thickness of dry soil layer, then it can be sown by general methods; the surface of the local dry soil layer is 3-5 cm, but when the bottom soil is good, it can be used to raise the earthworm before the planting, or increase the upper layer of soil. Moisture content to promote seed germination and secondary root growth, improve seedling drought resistance and ensure full seedlings.
Seed sowing: When the local surface dry soil layer is more than 5-6 cm but the bottom sill is still good, a deeper ditch can be used to plow the seeds in the wet soil layer at the bottom of the ditch, and a layer of wet soil can be covered. Or you can use a plough to open a ditch, and then plow in the ditch again, sowing the seeds in the wet soil, light pressure after covering the soil, and keep the furrow. Seed sowing method can make the seed absorb the water in the lower layer of the soil and produce good seedlings.
Sputum sowing: When the local surface dry soil layer is more than 10-12 cm and the bottom soil is not good, in order not to delay the agricultural season, it is necessary to adopt the sow planting method. Use water sources that may be used for watering. When sowing, sowing depth should be 10-12 centimeters, watering 1.0-1.5 kilograms per hole, sowing after soaking, applying organic fertilizer and covering soil (cover wet soil, cover dry soil) to benefit water and fertilizer. Focus on ensuring full seedlings.
Full-film double-furrow planting: In the completed field, first open two trenches for potatoes and corn, so that the middle and the two sides of the two trenches form a gully, cover the mulch on the gully, and sow the potato in the trench. ,corn. After the ditch cover film, due to the low topography in the ditch, a water collecting funnel can be formed, and the precipitation on the bed can be gathered into the seedling hole to facilitate the absorption and utilization of the plant and improve the utilization rate of precipitation.
Author: Liu Xueqin
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