Integrated drip irrigation and fertilization method for corn in semi-arid areas

A drip fertigation and semi-dry technology, which is applied in the direction of fertilization methods, fertilization devices, botanical equipment and methods, etc., can solve the problems of small application area, disjointed utilization of water and fertilizer, and low utilization efficiency

Inactive Publication Date: 2020-06-16
JILIN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The average effective rainfall during the maize growth period in the semi-arid area is less than 300mm, and the temporal and spatial distribution is uneven. Spring drought, summer drought, and autumn drought frequently occur. Natural precipitation is far from meeting the water demand of corn.
In my country, the application of water and fertilizer integrated drip irrigation and fertilization technology is more concentrated in arid areas such as Xinjiang. The research and application of corn in the semi-arid areas of Northeast China is in its infancy, and the application area is small, less than 3%.
At present, most farmers rely mainly on experience, and the blindness of fertilizer and water investment is large. The technical and management measures adopted lack effective technical index reference. Reasonable, unable to synchronize water and fertilizer, use of water and fertilizer out of joint, low utilization efficiency, failed to give full play to the coordinated and efficient role of water and fertilizer

Method used

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  • Integrated drip irrigation and fertilization method for corn in semi-arid areas
  • Integrated drip irrigation and fertilization method for corn in semi-arid areas
  • Integrated drip irrigation and fertilization method for corn in semi-arid areas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] Example 1 Establishment of the method for drip irrigation and fertilization of corn water and fertilizer integration in the present invention

[0101] 1. Moisture management

[0102] Research on the law of water demand under the condition of corn drip irrigation, adopt random block design, set 5 irrigation amount treatments, carry out the study of drip irrigation corn irrigation system, get the experimental parameters and clarify the suitable water demand of corn growth period in the semi-arid area is 400mm ~ 450mm , the suitable range of field water holding capacity at different growth stages: 60% to 70% at the seedling stage, 70% to 80% at the jointing stage, 75% to 85% at the tasseling stage, 80% to 90% at the filling stage, and 60% to 70% at the wax ripening stage . Thereby, the water demand characteristics of each growth stage of corn under the condition of drip irrigation have been ascertained. figure 1 ).

[0103] According to the test results, 400-450 mm o...

Embodiment 2

[0115] Example 2 The implementation of drip irrigation and fertilization method of corn water and fertilizer integration

[0116] 1. Implementation location

[0117] In 2014, it was implemented in Jin Yingmin's 5.2-hectare contracted field in Fuzi Village, Zanzi Township, Qian'an County, Jilin Province. In 2014, the corn growth period received 297mm of rainfall. The basic physical and chemical properties of farmland soil (medium fertility soil) are shown in Table 5.

[0118] Table 5 Basic physical and chemical properties of the tested soil

[0119]

[0120] 2. Technical measures plan

[0121] Two treatments were set up in the experimental demonstration field, (1) 2.2 hectares of conventional planting, and (2) 3 hectares of integrated planting with drip application of water and fertilizer. Except for the different fertilization ratios at different growth stages of corn, other production management measures were the same.

[0122] (1) Fertilizer dosage

[0123] Organic...

Embodiment 3

[0134] Example 3 The implementation of drip irrigation and fertilization method of corn water and fertilizer integration

[0135] 1. Implementation location

[0136] In 2015, it was implemented in Chengkun's 38 mu contracted field in Fuzi Village, Zanzi Township, Qian'an County, Jilin Province. In 2015, the rainfall during the maize growth period was 324 mm. See Table 8 for the basic physical and chemical properties (medium fertility) of farmland soil.

[0137] Table 8 Basic physical and chemical properties of the tested soil

[0138]

[0139] 2. Technical measures plan

[0140] Two treatments were set up in the experimental demonstration field, (1) 13 mu of drip irrigation with nitrogen, and (2) 15 mu of drip irrigation with nitrogen, phosphorus and potassium fertilizers. Except for the different proportions of fertilization at different growth stages of corn, other production management measures were the same.

[0141] (1) Fertilizer dosage

[0142] Organic fertili...

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Abstract

The invention provides a water-saving, fertilizer-saving, high-yield and high-efficiency planting method for corn in a semi-arid area. This method uses the drip irrigation system to supply water and nutrients at the same time according to the law of water and nutrient demand in each stage of corn growth and development in semi-arid areas, and timely and accurately supply the water and nutrients needed by corn to meet the water and nutrient needs of corn in different periods. , to achieve collaborative management and efficient use of water and fertilizer.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting. Specifically, the invention relates to a water-saving, fertilizer-saving, high-yield and high-efficiency planting method for corn in a semi-arid area. Background technique [0002] The average effective rainfall during the maize growth period in the semi-arid area is less than 300mm, and the temporal and spatial distribution is uneven. Spring drought, summer drought, and autumn drought frequently occur, and natural precipitation is far from meeting the water demand of maize. The research results show that the drought frequency from sowing to emergence, jointing to silking, and grain filling to maturity of maize in the semi-arid area is 60-96%, 20-40%, and 30-52%, respectively, which seriously affects the spring sowing and planting of maize. Growth and development, the yield reduction rate caused by drought is up to 20-60%. [0003] Moisture is not only the decisive factor for the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/20A01C21/00A01G25/00
CPCA01C21/00A01C21/005A01G22/00A01G25/00
Inventor 刘慧涛高玉山孙云云刘方明窦金刚候中华才源王立春毕业莉肖艳华王桂华孟庆明关长彤王西郃彭晓红赵炜董玉峰王铁成何宏新潘兴东黄金亮
Owner JILIN ACAD OF AGRI SCI
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