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Application of fulvic acid and its salt to weed control and rice yield increase in direct seeding rice fields

A technology for direct seeding of rice fields, fulvic acid, applied in the fields of rice cultivation, application, herbicides and algaecides, etc., can solve the problems of environmental pollution, impact on agricultural production, environmental safety, human and animal safety, huge dosage of herbicides, etc. Achieve the effect of reducing labor intensity, improving labor efficiency and reducing labor costs

Inactive Publication Date: 2019-11-12
HUNAN AGRI BIOTECH RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above technical problems, the purpose of the present invention is to provide a use of fulvic acid and its salt in the control of weeds in direct-directed paddy fields and the increase of rice production, so as to solve the problem of the huge amount of herbicides used in direct-directed paddy fields, which causes serious environmental pollution and affects agricultural production. , environmental safety and human and animal safety issues

Method used

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  • Application of fulvic acid and its salt to weed control and rice yield increase in direct seeding rice fields
  • Application of fulvic acid and its salt to weed control and rice yield increase in direct seeding rice fields
  • Application of fulvic acid and its salt to weed control and rice yield increase in direct seeding rice fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 Fulvic acid of different purity is to the control effect of the main weeds in the direct-seeding paddy field

[0022] The inhibitory effect of different purity fulvic acid on the seedlings of barnyardgrass, stephenia and bermudagrass was determined by agar culture method. Add 300 mL of 0.2% agar into a disposable plastic cup with a height of 13 cm and a diameter of the mouth of the cup of 20 cm. After the agar is solidified, 50 dew-white barnyardgrass, daughter-of-pearl and bermudagrass seeds are embedded on the display. Experimental design of 5 fulvic acid purity treatments:

[0023] T1: Fulvic acid with 20% purity;

[0024] T2: Fulvic acid with 40% purity;

[0025] T3: Fulvic acid with 60% purity;

[0026] T4: 80% pure fulvic acid;

[0027] T5: 100% pure fulvic acid.

[0028] The amount of fulvic acid with different purity is 0.5g, the flooding height is 5cm, the fulvic acid used in the test is analytically pure, the control group uses water as a blank...

Embodiment 2

[0033] Example 2 The effect of fulvic acid on the control of main weeds in direct-seeding paddy fields

[0034] The weed control effects of different fulvic acid salts on barnyardgrass, stephenia, and bermudagrass seedlings were measured, and the test conditions were the same as in Example 1. The fulvic acid salts tested include potassium fulvate, sodium fulvate, magnesium fulvate and calcium fulvate, all of which have a solubility of 2g / L and a flooding depth of 3cm.

[0035] Table 2 Control effect of different fulvic acid salts on barnyardgrass, stephenia and bermudagrass seedlings

[0036]

[0037] As shown in Table 2, the control effect of fulvic acid on barnyardgrass, stephenia and bermia, the control effect of fulvic acid on barnyard grass is between 70.00% and 96.00%; The effect is between 55.33% and 82.00%; the control effect of fulvic acid on D. chinensis is between 34.67% and 62.67%, respectively; The control effect is better.

Embodiment 3

[0038] Example 3 The effect of fulvic acid application rate on the main weeds in the direct-seeding paddy field

[0039] The field test was conducted to determine the control effect of fulvic acid application rate on the main weeds in the direct-seeding paddy field. The purity of fulvic acid used in the test was 30% to 60%. The routine fertilization of the test is 30kg / mu, and the routine fertilization of the test includes the following nutrients: the content of inorganic salt (K or Na) is 5% to 15%, the content of organic matter is 60% to 80%, the content of total nitrogen is 3% to 5%, and the content of total nitrogen is 3% to 5%. The phosphorus content is 0.3% to 0.5%.

[0040] Experimental design 10 treatments of fulvic acid application rate:

[0041] CK: conventional fertilization;

[0042] T1: Conventional fertilization + 30% fulvic acid with a purity of 5Kg / mu;

[0043] T2: Conventional fertilization + 30% fulvic acid with a purity of 10Kg / mu;

[0044] T3: conventio...

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Abstract

The invention provides the application of fulvic acid and its salt to weed control and rice yield increase in direct seeding rice fields. According to the invention, fulvic acid and its salt is applied in 18-22 days after direct seeding of rice so as to control grassy weeds and broadleaf weeds, promote earlier maturation of rice, and increase the yield components such as plant height, ear length and seed setting rate of rice, thereby increasing rice yield.

Description

technical field [0001] The invention belongs to the field of plant protection and fertilizer technology, and in particular relates to the use of fulvic acid and its salt in the control and production increase of direct-directed rice fields. Background technique [0002] Rice direct seeding technology is a light and convenient rice cultivation technology. It saves two important production links of seedling raising and transplanting (throwing) seedlings, so it saves a lot of labor and seedling fields, and greatly reduces labor intensity. Supporting technical measures such as water and fertilizer management can increase production and income. Direct-directed rice has low tiller nodes, early tillers, many tillers, and many effective panicles. Direct-directed rice has no seedling injury and greening process after planting, so the growth process is accelerated, the maturity period is early (4-6 days), the root system is developed, and the leaf area Large, strong photosynthetic ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N61/00A01P13/00A01G22/22A01C21/00
CPCA01C21/00A01N61/00A01G22/22
Inventor 王立峰柏连阳周尚峰邬腊梅杨浩娜李祖任周小毛赵正洪
Owner HUNAN AGRI BIOTECH RES CENT
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