Mulched drip irrigation energy-saving method for red dates in arid regions
A technology of drip irrigation under mulch and arid areas, applied in the direction of plant protection cover, application, cultivation, etc., to achieve the effect of reducing overwintering mortality, reducing winter death, and delaying migration
Inactive Publication Date: 2011-07-27
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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Problems solved by technology
However, due to the particularity of forest and fruit planting, there are still many technical problems in the promotion of forest and fruit industry that have not been solved. The present invention aims at the difficulties in planting jujube in arid areas, and provides a kind of drip irrigation of jujube under mulch in arid areas in combination with drip irrigation and water-saving technology under mulch. water saving method
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0017] The present invention carries out drip irrigation water-saving method experiment under film of jujube in the 34th regiment and the 35th regiment of the Second Agricultural Division of Xinjiang Production and Construction Corps:
[0018] Site selection and site preparation: Select 5 mu of abandoned sandy soil land at the edge of the desert as the experimental site. In November of the previous year, base fertilizer was applied and deep plowed into the soil. After the land was leveled, spring irrigation was carried out in early April to prepare for sowing jujube in spring;
[0019] Sowing: Choose drought-tolerant and salt-tolerant wild jujube as the rootstock variety, and sow in mid-April. The sowing method adopts mechanical plug-type precision sowing, so that one kind of hole is achieved. The planting distance is 20cm, and the row spacing is 4.0-4.2m. The weight of sowing seeds per acre is 150-250 grams;
[0020] Laying of drip irrigation belts: Mechanized laying of drip ...
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The invention relates to a mulched drip irrigation energy-saving method for red dates in arid regions, which comprises the steps of seeding, laying of a drip irrigation tape, mulching and grafting. In the method, can effectively reduce the evaporation of soil water can be effectively reduced, and salt and alkaline pressed by soil and soil moisture conservation are facilitated by considering the practical conditions of less rainfall and commonly serious salinization in arid regions and combining the traditional drip irrigation technology and the mulching measures according to the growth characteristics of the red dates. Shown by a great amount of experiments, under mulching condition, the irrigation period of date trees is prolonged to 15-16 days from 10 days under non-mulching condition, so that the growth demand of the red dates can be met and water can be saved by 50-55 percent; and the mulched drip irrigation method for red dates can save water by 50-55 percent in comparison with the traditional drip irrigation mode for each mu (mu is a unit of area). With the method, the technical difficulties of lack of water, salt damage, difficult wintering of large-scale forests and fruits planting under control conditions are solved, the wintering dead rate of fruit trees is reduced by 4-6 percent, thus being suitable for promotion of large-area forest and fruit engineering in arid areas, and providing a new concept for applying of the mulched drip irrigation energy-saving technology in forest and fruit industry.
Description
technical field [0001] The invention relates to a water-saving method for jujube drip irrigation under plastic film in arid areas, belongs to the water-saving planting technology of forest fruits, and is an oasis agricultural water-saving measure for large-scale jujube planting in arid areas. Background technique [0002] Arid regions are characterized by scarce precipitation and strong evaporation, and water resources are the most important factor restricting economic development. However, with the development of social economy, the development of oasis has been intensified by human beings, the area of oasis has continued to expand, the population has increased sharply, and the shortage of water resources has become the most prominent problem restricting the development of oasis economy. At the same time, the special climatic conditions in arid areas cause salt to accumulate on the surface along the capillary with strong evaporation of water, resulting in reduced crop yie...
Claims
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Inventor 徐海量张鹏叶茂赵新风王炜刘新华吴忠华
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI