Cotton planting method for synergistic efficient utilization of water and fertilizer in arid region

A high-efficiency water and fertilizer technology, applied in fertilization methods, botanical equipment and methods, applications, etc., can solve problems such as complex operations, achieve precise control, obvious effects, and improve water and fertilizer absorption capacity

Pending Publication Date: 2021-01-29
SHANDONG COTTON RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the operation of traditional partial root zone irrigation or controlled alternate root zone irrigation is complicated. Although it has a good water-saving effect, it has not really been popularized and applied in a large area.

Method used

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  • Cotton planting method for synergistic efficient utilization of water and fertilizer in arid region
  • Cotton planting method for synergistic efficient utilization of water and fertilizer in arid region
  • Cotton planting method for synergistic efficient utilization of water and fertilizer in arid region

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Drip irrigation cotton fields under mulch film in arid areas are planted in large and small rows or with equal row spacing.

[0031] as attached figure 1 As shown, when the large and small rows are planted, the row spacing of the large row is 66cm, and the row spacing of the small row is 10cm.

[0032] as attached figure 2 As shown, when planting with equal row spacing, the row spacing is 76cm, and the drip irrigation belt layout adopts the "1 film, 3 rows, 3 belts" pattern, and the drip irrigation belt is placed within 10cm beside the cotton plant.

[0033] The number of irrigations is 10-12 times, and the fertilizer is applied with the water. The irrigation is divided into 5-6 times of low-volume irrigation and high-volume irrigation, and the low-volume and high-volume irrigation are carried out alternately. The low-volume irrigation is about 60-70% of the average drip irrigation. During low-volume irrigation, only part of the root system of cotton is in the irriga...

Embodiment 2

[0036] Example 2: Partial root zone irrigation can promote water and fertilizer absorption capacity of roots in cotton irrigated areas

[0037] as attached image 3 As shown, the grafted and divided roots are used indoors to simulate part of the root zone irrigation, and the grafted cotton seedlings are placed in the cultivation box. The cultivation box is a square plastic box with a waterproof partition in the middle and a volume of 2L on each side. The roots on both sides are placed In the containers on both sides of the culture box, different solutions can be put into the containers for different treatments. Both sides of the treatment were put into nutrient solution as a control treatment (CK); 20% (g / v) PEG6000 was added to simulate osmotic stress in one side of the nutrient solution as a partial root zone irrigation treatment (PRI); both sides were added with 10% ( g / v) of PEG6000 as a deficit irrigation treatment (DI). The composition of the nutrient solution is: 1.25...

Embodiment 3

[0039] Example 3: Part of the root zone irrigation water and fertilizer synergistically improves the water and fertilizer use efficiency of cotton

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Abstract

The invention discloses a cotton planting method for synergistic efficient utilization of water and fertilizer in an arid region, and belongs to the technical field of cotton planting. The cotton planting method is characterized in that irrigation is divided into low-amount irrigation and high-amount irrigation according to irrigation amount, and the low-amount irrigation and the high-amount irrigation are alternately carried out; and fertilization is divided into large-amount fertilization and small-amount fertilization according to fertilizer amount, the large-amount fertilization is carriedout along with drip irrigation during low-amount irrigation, and the small-amount fertilization is carried out along with drip irrigation during high-amount irrigation. Compared with the prior art, according to the cotton planting method for efficient utilization of the water and the fertilizer in the arid region, partial root regions of cotton are alternately irrigated by adjusting drip irrigation tape layout, drip irrigation and fertilization times and single drip irrigation and fertilization amount, so that the water and fertilizer absorption capacity of root systems of irrigation regionsis improved; and water and fertilizer distribution is matched with cotton root system growth, and water and fertilizer supply is matched with the water and fertilizer requirement law of cotton, so that water inter-plant evaporation and fertilizer leaching loss are reduced, the water and fertilizer utilization efficiency of cotton is improved, and good application and popularization value is achieved.

Description

technical field [0001] The invention relates to the field of cotton planting, and specifically provides a cotton planting method for synergistic and efficient utilization of water and fertilizer in dry areas. Background technique [0002] Cotton is an important economic crop in my country, and the cotton industry occupies an important position in the national economy. In recent years, with the adjustment of my country's crop planting structure, cotton planting is shifting to the northwest inland cotton area with better light and heat resources. The northwest inland cotton area has become the largest cotton area in my country, accounting for 70% of the country's total planting area. The above are the main commodity cotton bases in the country and an important way for local farmers to increase their income. This area is an arid and semi-arid area, and water deficit and nutritional deficiency are the two main factors that limit the sustainable development of the cotton industry...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A01G22/50A01G25/00A01C21/00
CPCA01G22/50A01G25/00A01C21/00
Inventor罗振董合忠孔祥强辛承松唐薇田立文
OwnerSHANDONG COTTON RES CENT