Method for controlling paddy field spirogyra by using biological inhibitor

A bioinhibitor and rice field technology, applied in the agricultural field, can solve the problems of rice quality decline, serious eutrophication, and constraints on green and sustainable development, and achieve the effects of promoting greening, simple production, and high-value utilization

Active Publication Date: 2019-07-12
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Over the years, in the process of rice planting, the amount of chemical fertilizers has been increasing, especially the large-scale use of phosphorus fertilizers, which has made the water eutrophication of rice fields more and more serious, resulting in the large-scale growth of Spirogyra in rice fields, affecting the good growth of rice. and strong
At the same time, due to the use of chemical fertilizers and pesticides, the stress resistance of rice has weakened, and the occurrence of diseases and insect pests has become more and more serious, resulting in a decline in rice quality; these factors have seriously restricted the green and sustainable development of my country's rice industry.

Method used

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  • Method for controlling paddy field spirogyra by using biological inhibitor
  • Method for controlling paddy field spirogyra by using biological inhibitor
  • Method for controlling paddy field spirogyra by using biological inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Crush crop straws to 1-2 cm, dry at 100-105°C for 4 hours, and then perform pyrolysis in a pyrolysis furnace after compression. The pyrolysis temperature is 450°C, and the pyrolysis time is 4 hours; Stand for 25 days, take the middle layer, and obtain straw vinegar liquid.

[0030] Dilute the obtained straw vinegar solution by 100, 300, 500, 700, and 900 times respectively to treat Spirogyra and use untreated as a control (CK). The results are as follows: figure 1 shown.

[0031] figure 1 The results showed that the color of Spirogyra changed from green to yellow after being treated with different dilutions of straw vinegar, and the spongy body changed from hard to soft. At 100 dilution, Spirogyra was already black, and the spongy body was soft, and the growth of Spirogyra was affected. Great inhibition.

Embodiment 2

[0033] Cut vegetable leaves, fruit peels and other plant wastes to 1-2 cm, crush the buckwheat through a 50-mesh sieve, mix the plant waste and buckwheat in a weight ratio of 8:1 to obtain a plant raw material mixture; mix the plant raw material mixture with molasses and Water is mixed in a ratio of 3:1:10, fully stirred, after 30 days of aerobic fermentation (full stirring once a day), completely sealed anaerobic fermentation is carried out for 60 days, and the solid-liquid separation is carried out after the fermentation is completed, and the supernatant is taken to obtain the plant fermentation broth.

[0034] The obtained plant fermentation broth was diluted 20, 40, 60, 80, and 100 times respectively, and Spirogyra was treated, and untreated was used as a control (CK), and the results were as follows: figure 2 shown.

[0035] figure 2 The results showed that the color of Spirogyra obtained after treatment with 20-60 dilution of plant fermentation liquid changed from gr...

Embodiment 3

[0037] A kind of method utilizing bioinhibitor to control Spirogyra in paddy field, concrete steps are as follows:

[0038] (1) Crush crop straws to 1-2 cm, dry at 100-105°C for 4 hours, and then perform pyrolysis in a pyrolysis furnace after compression. Liquid, stand still for 25 days, take the middle layer, and obtain straw vinegar liquid;

[0039] (2) cutting plant wastes such as vegetable leaves and peels to 1-2 cm, crushing buckwheat through a 50-mesh sieve, mixing plant waste and buckwheat at a weight ratio of 8:1 to obtain a plant raw material mixture;

[0040] (3) Mix the plant raw material mixture obtained in step (2) with molasses and water in a ratio of 3:1:10, fully stir, and after aerobic fermentation for 30 days (full stirring once a day), carry out completely sealed anaerobic fermentation 60 days, after the fermentation is completed, the solid-liquid separation is carried out, and the supernatant is taken to obtain the plant fermentation liquid;

[0041] (4) ...

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Abstract

The invention discloses a method for controlling paddy field spirogyra by using a biological inhibitor. Straw vinegar and fresh plant fermentation liquor are used as spirogyra inhibitors, so that high-value utilization of straws can be realized, meanwhile, garbage classification and reduction can be promoted, and environment-friendly rice planting can further be promoted. The spirogyra inhibitor has the characteristics of being natural, environment-friendly, simple to produce and the like; and the inhibitor contains various substances such as acids, alcohols, phenols and enzymes as well as microorganisms, not only has the characteristic of inhibiting the growth of the spirogyra, but also has multiple effects of resisting diseases, expelling insects, promoting growth and purifying water.

Description

technical field [0001] The invention relates to the technical field of agriculture, in particular to a method for controlling Spirogyra in paddy fields by using multifunctional natural biological inhibitors. Background technique [0002] Over the years, in the process of rice planting, the amount of chemical fertilizers has been increasing, especially the large-scale use of phosphorus fertilizers, which has made the water eutrophication of rice fields more and more serious, resulting in the large-scale growth of Spirogyra in rice fields, affecting the good growth of rice. and strong. At the same time, due to the use of chemical fertilizers and pesticides, the stress resistance of rice has weakened, and the occurrence of diseases and insect pests has become more and more serious, resulting in a decline in rice quality; these factors have seriously restricted the green and sustainable development of my country's rice industry. The use of green agricultural inputs (pesticides,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/44A01N61/00A01P7/04
CPCA01N61/00A01N65/00A01N65/44
Inventor 范金霞郭欣欣王宏燕郑国香孙宏瑞黄晓梅
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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