Mechanical deep-sinking and water-saving irrigation dry cultivation techniques

Dryland farming and water-saving agricultural production and cultivation techniques are a series of comprehensive agricultural techniques for saving water, keeping crops, and farming in rainfed agricultural areas, and are the inevitable trend of linking cropping land and land to ensure the sustainable development of agriculture. This technique is to solve the impact of drought on agricultural production. The first is to store natural precipitation in the plough layer of soil through deep loosening to reduce the evaporation of water, effectively improve the water and air permeability of the soil, facilitate the deep rooting of the crop roots, and improve the capacity of soil water storage and protection; Based on the practice of water resources, a set of well-established walking water-saving irrigation sowing machines suitable for rural characteristics and farmers' economic conditions have been developed and developed to ensure that seedlings are seeded once and for all. The technique was promoted in severe spring drought, poor soil moisture during planting, and extended arid areas during seedling period. Compared with the artificial planer, the water conservation in hectares was more than 30 tons, the provincial laborers were 12 and the provinces were 15 kg, and the hectare cost saving expenditure was 350 Above RMB, the yield increase rate is over 10%.
(1) Appropriate areas, areas, and expected benefits are suitable for promotion in the main producing areas of grain crops in our province. In 2006, it plans to promote an area of ​​15 million mu, and it is expected to increase food production by 350 million kilograms with an increase of 330 million yuan.
(b) tips
1. Mechanical deep loose water storage: sub-depth deep and partial deep loose two kinds. Comprehensive deep loosening is done with a full range of deep-steamer or vibration (wing type) subsoilers to fully loosen the work width. Partial deep loosening is local loosening with a spade or chisel submerging machine. Generally, the deep-soiled soil preparation is 35-45cm, the depth of the cultivator is 20-30cm, and the depth of the ridge is 25-30cm.
2. Walking water-saving irrigation machinery sowing:
(1) Application of water method: One is to apply water to open the ditch and apply water to open the ditch and apply water on the ridge. The depth of the ditch is usually 6-10 cm and the width is 10-15 cm. The other is the ditching under the seed bed. The water is applied under the top soil of the seed bed, and the water application tip is adjusted to be 3-5 times lower than the tip of the opener. Centimeters.
(2) Water application quantity: Distinguish the amount of water applied according to the soil moisture content so that the soil moisture content meets the elongate part of the seed. Heavy drought conditions or sandy soil water supply of 60-90 cubic meters of hectares, drought, lighter water supply of hectares of 30-60 cubic meters.
(3) Mechanical sowing: sowing with matching seeder.
3. Seedling Replenishment: When replenishing at the seedling stage, take a walk-through water-saving irrigation planter, remove the sowing device, move the water supply device to the side of the crop about 20 centimeters, make up the water depth of 15-20 centimeters, and apply a water quantity of 30 hectares. - 60 cubic meters.
(3) Matters needing attention The equipment with strong durability and high mechanical quality is selected.

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