Drip irrigation planting method under plastic film for replacing wheat and jade double-cropping system with spring corn in North China
A technology of drip irrigation and planting methods under mulch, applied in botany equipment and methods, plant cultivation, horticulture, etc., can solve problems such as consumption, water saving effect is not obvious, economic benefits are not high, and achieve large production potential and dry matter accumulation The effect of speed improvement and high output
Active Publication Date: 2017-10-27
大禹节水(天津)有限公司
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Problems solved by technology
The traditional double-cropping system of winter wheat and summer corn a year, because winter wheat consumes a lot of agricultural water, the water saving effect after the introduction of drip irrigation technology in this area is not obvious, and the economic benefits of this traditional mode are not high, which directly leads to the grain loss in this area. Prominent contradiction between supply and demand of production water
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] (1) Planting method of spring corn:
[0035] (1) Seed selection and seed treatment
[0036] Select the spring corn variety Jinhai No. 5 in Hebei, and sown for 3 days before planting;
[0037] (2) Site selection and site preparation
[0038] Choose a plot with flat terrain, deep soil layer, loose soil, medium fertility, good soil physical and chemical properties, strong water and fertilizer retention capacity, shallow plough before mulching, level the ground, and the depth of plough layer is 25-30cm;
[0039] (3) Seeding
[0040] From April 15th, machine sowing will be adopted to make the seeding depth consistent and achieve the goal of neat emergence. The row spacing is 60cm and the plant spacing is 28cm. After sowing, apply a 1:1 mixture of acetochlor and atrazine and spread the ground film;
[0041] (4) Laying of drip tape
[0042] The built-in drip irrigation pipe is adopted, the dripper flow rate is 1.0L / h, the dripper spacing is 30cm, and the laying method is drip irrigation un...
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The invention provides an under-mulch drip irrigation cultivation method for spring corn replacing wheat-maize double cropping in north China. Spring corns are sown in middle-to-late April and harvested in the end of August, and thus the growth period is 118-130 days; in the stages of sowing-jointing-filling-maturing of the spring corns, 14-16 mm of drip irrigation amount is added through the drop irrigation mode; in the stages of jointing- heading and heading-filling, 75-85 mm of drip irrigation amount and 55-65 mm of drip irrigation amount are added through the drop irrigation mode respectively; a main water consumption source of the spring corns in North China plain is seasonal rainfall, which accounts for 80% and the above; the required manual irrigation quantity is less; and with the drip irrigation under mulch being combined, the effects of high harvest and water saving are achieved, and economic benefit and water resource utilization efficiency are improved to a large extent.
Description
Technical field [0001] The invention belongs to the technical field of corn planting, and particularly relates to a sub-film drip irrigation planting method in which spring corn replaces wheat and corn in North China. Background technique [0002] The North China Plain is in short supply of water resources. The total amount is only 7.6% of the country, and the per capita is only 1 / 5 of the country. The traditional double-cropping system of winter wheat and summer corn in a year. Because winter wheat consumes a lot of agricultural water, the water saving effect is not obvious after the introduction of drip irrigation technology in this area, and the economic benefits of this traditional model are not high, which directly leads to the grain in the area. The contradiction between production water supply and demand is prominent. Therefore, seeking a new water-saving planting system to replace the high water-consuming planting system of wheat and jade double cropping has become one o...
Claims
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IPC IPC(8): A01G1/00
CPCA01G22/00
Inventor 张学双韩昕君牛少卿李长瑞
Owner 大禹节水(天津)有限公司