Irrigation method for improving water use efficiency of peanuts in dry land

A technology for peanut and watering, applied in the direction of botany equipment and methods, applications, watering devices, etc., can solve the problems of peanut water management technology lack of norms, standards, adverse effects on soil physical properties, low water use efficiency, etc., to improve Water use efficiency, technical conditions are easy to control, and the effect of water use efficiency improvement

Inactive Publication Date: 2013-10-09
SHANDONG PEANUT RES INST
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] However, the existing high-yield and high-efficiency peanut water management technology still lacks norms and standards, and flood irrigation or border flood irrigation are mostly carried out according to the local biological environment and climatic conditions
Under this irrigation method, when the water flows through the border surface, it infiltrates rapidly, and the water in the root concentration layer of 0-30 cm will soon reach saturation, and the

Method used

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  • Irrigation method for improving water use efficiency of peanuts in dry land
  • Irrigation method for improving water use efficiency of peanuts in dry land
  • Irrigation method for improving water use efficiency of peanuts in dry land

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1 Materials and methods

[0025] 1.1 Materials

[0026] The peanut varieties were Huayu 22 and Huayu 25.

[0027] 1.2 Method

[0028] 1.2.1 Mulching and sowing

[0029] The summer direct-seeding peanut varieties Huayu No. 22 and Huayu No. 25, which are drought-resistant and barren-resistant, are suitable for arid and semi-arid areas, and are sown when the ground temperature of the 0-10cm soil layer reaches 15°C. Watering is manually controlled, and the amount of water at the bottom before sowing is 1200m 3 / hm, and the soil moisture content was determined by the drying method. Apply ternary compound fertilizer (15-15-15) 600kg / hm before sowing 2 , the management measures are the same as the high-yield field.

[0030] 1.2.2 Experimental grouping and irrigation methods

[0031] The experiment set up four water treatments: no watering during the whole growth period (that is, using natural precipitation), watering at the seedling stage, watering at the flower needle ...

Embodiment 2

[0044]The materials used in the experiment were the same as in Example 1, and three experimental groups were established. Experimental group one, the irrigation method is the same as the pod-forming stage watering group of embodiment 1; Experimental group two, the irrigation method is basically the same as the pod-forming stage watering group of embodiment 1, the difference is: monitor the soil moisture content in the pod-forming stage When the soil water content in the 0-20cm soil layer drops below 27% of the field water holding capacity for 5 consecutive days, or when the soil water content of the sandy loam texture drops below 6.5% for 5 consecutive days, the irrigation will be carried out; experimental group 3, irrigation method Basically the same as the watering group at the pod stage of Example 1, the difference is: when the soil moisture content is monitored during the pod stage, when the soil moisture content in the 0-20cm soil layer drops to about 33% of the field wate...

Embodiment 3

[0048] The materials used in the experiment were the same as in Example 1, and three experimental groups were established. Experimental group one, the irrigation method is the same as the watering group at the pod-forming period of Example 1; Experimental group two, the irrigation method is basically the same as the watering group at the pod-forming period of Example 1, the difference is that the amount of water to be controlled is 140m 3 / hm 2 ; Experimental group three, the control irrigation volume is 160m 3 / hm 2 . The experimental results are shown in Table 3.

[0049] Table 3 shows that the irrigation volume is controlled at 150, 160m 3 / hm 2 The two levels have no effect on the peanut yield, but the irrigation amount is 140m 3 / hm 2 Resulting in a decrease in peanut production; the irrigation volume is 140, 160m 3 / hm 2 The water use efficiency of the two levels of experimental groups is lower than that of the irrigation volume of 150m 3 / hm 2 experimental gr...

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Abstract

The invention relates to an irrigation method for improving the water use efficiency of peanuts in a dry land. The irrigation method comprises a first step of covering film and sowing seed; a second step of preparing and paving a drop irrigation device and pipelines; a third step of monitoring the soil water content, wherein detection starts from the florescence period or the pod-bearing period till the pod-full period, when the soil water content of a 0-20cm soil layer drops to below 30% of the field capacity for 5 consecutive days, or when the soil water content of a sandy loam soil land drops to below 7.5% for 5 consecutive days, irrigation is conducted in time; a fourth step of irrigating the earth, wherein the irrigation amount is controlled to be 140-160 cubic meters per hectare, and irrigation is stopped when the soil water content of the 0-20cm soil layer reaches the saturation state. The irrigation method for improving the water use efficiency of the peanuts in the dry land can greatly reduce the amount of water consumption, improves the water utilization efficiency, improve the yield by 8%-40% compared with a conventional method, and improves the water use efficiency by 2-3 times. The irrigation method for improving the water use efficiency of the peanuts in the dry land is easily controlled in technical condition, simple, practicable, strong in operability, and low in production cost.

Description

【Technical field】 [0001] The invention relates to the technical field of crop cultivation, in particular to an irrigation method for improving the water use efficiency of dryland peanuts. 【Background technique】 [0002] China is one of the major arid countries in the world. The area of ​​arid and semi-arid cultivated land accounts for about 53% of the total cultivated land area. Drought has become a key problem that restricts the further development of my country's agricultural production and must be solved first. Although peanut is one of the economical and oil crops that are relatively drought-tolerant and barren-tolerant, it is also an ideal crop for developing dry farming and fully exploiting dry and thin land resources. However, regional rainfall, concentrated rainfall or seasonal drought still limit peanut production. main factor for quality improvement. At present, more than 70% of the peanuts in my country's peanut production areas are planted on barren sandy soil t...

Claims

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Application Information

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IPC IPC(8): A01G25/02A01G25/16A01G1/00
CPCY02A40/22
Inventor 张智猛戴良香丁红慈敦伟宋文武
Owner SHANDONG PEANUT RES INST
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