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Water-saving irrigation method applicable to close-planting crop

A technology of crops and water volume, applied in the direction of botanical equipment and methods, applications, watering devices, etc., to achieve the effect of increasing yield

Inactive Publication Date: 2013-05-01
INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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  • Claims
  • Application Information

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Problems solved by technology

However, there is no irrigation method that has successfully applied this theory to drought-tolerant, high-yield and densely planted crops such as winter wheat and hybrid millet.

Method used

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  • Water-saving irrigation method applicable to close-planting crop
  • Water-saving irrigation method applicable to close-planting crop
  • Water-saving irrigation method applicable to close-planting crop

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1, the limited irrigation of winter wheat every furrow

[0029] The winter wheat variety tested was Shixin 828, which was sown on October 14, 2011, with a sowing density of 200,000 / mu. According to urea 450kg / hm 2 , diammonium hydrogen phosphate 225kg / hm 2 Apply basal fertilizer. The size of the border for limited irrigation is 1*16m 2 , the size of the control plot is 8*8m 2 . After sowing, use a neutron moisture meter to measure the soil moisture content in the 0-160cm soil layer. Without winter irrigation, the effective precipitation during the whole growth period is 79.1mm. According to the following test requirements, the corresponding furrow irrigation was carried out during the critical water demand period of winter wheat.

[0030] (1) The first irrigation was carried out on April 11, 2012 (jointing-booting stage). Adjacent borders with limited irrigation (T) were irrigated with 40mm (T1) and 20mm (T2) respectively, and the control was irrigated ...

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Abstract

The invention discloses a water-saving irrigation method applicable to close-planting crop. The water-saving irrigation method is particularly applicable to wheat and hybrid millet and comprises the procedures that A, soil preparation, sowing and fertilization are carried out; B, a separate-field limited irrigation method is adopted to carry out irrigation when the crop is in the jointing-booting stage, and two adjacent fields are respectively irrigated with the normal water quantity and one third to two thirds of the normal water quantity; and the normal water quantity is 40-100 mm; and C, the separate-field limited irrigation method is adopted to carry out irrigation when the crop is in the filling stage, and the two adjacent fields are respectively irrigated with one third to two thirds of the normal water quantity and the normal water quantity, namely the field which is irrigated with the normal water quantity last time is irrigated with one third to two thirds of the normal water quantity this time, and the field which is irrigated with one third to two thirds of the normal water quantity last time is irrigated with the normal water quantity this time. According to the water-saving irrigation method applicable to close-planting crop, the water consumption used for irrigation is greatly reduced, and a certain yield-increasing effect is also played on the crop.

Description

technical field [0001] The invention relates to the technical field of water saving in agricultural planting, in particular to a water saving irrigation method suitable for densely planted crops. Background technique [0002] Water scarcity is the primary agricultural and ecological problem facing the world. Drought is a global problem that seriously affects world food security. Global climate change makes this situation even more critical. According to a report released by UNESCO at the Fifth Water Resources Forum, if the world does not improve the efficiency of water resource utilization, half of the world's population will live in a water-scarce environment by 2030. For a long time to come, the lack of water resources in some arid and semi-arid regions will have a major impact on population mobility. It is estimated that 24 million to 700 million people will be displaced due to water shortage. [0003] my country's per capita and per mu water resources are far below the ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G25/00
Inventor 师长海刘孟雨赵治海董宝娣乔匀周张秋英管晓庆
Owner INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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