Preparation and application technology for waxy bacillus suspension agent

Abstract

The invention relates to preparation and application technology for a waxy bacillus suspension agent. The suspension agent is characterized by comprising the following components of: usually 1 to 1,010 bacterial colonies of living body waxy bacillus per milliliter, 1 to 25 weight percent of dispersing agent, 0.1 to 5 weight percent of thickening agent and the balance of water. The waxy bacillus suspension agent can be used for efficiently preventing and controlling root-knot nematodes of greenhouse vegetables such as watermelons, balsam pears, west melons, cucumbers, tomatoes, towel gourds, celeries and the like and outdoor vegetables. The using method comprises the following steps of: (1) after applying farmyard manure on a soil surface, diluting 1,000 milliliters of the waxy bacillus suspension agent by using 40 to 50 kilograms of water, uniformly spraying the diluted suspension agent on the soil surface, and turning soil; and transplanting crops after 3 to 10 days, wherein the effect of preventing and controlling the root-knot nematodes of the vegetables can reach 70 to 90 percent; and (2) after conventional fertilization of the soil, diluting 6,000 milliliters of the waxy bacillus suspension agent by using water until the diluted volume is 40 to 50 times the original volume of the suspension agent and irrigating roots by using the diluted suspension agent which serves as root-fixing water when transplanting the crops. The waxy bacillus suspension agent can efficiently prevent and control the root-knot nematodes of the vegetables.

Description

Technical field:

[0001] The invention relates to the preparation and application technology of a bacillus cereus suspension. Background technique:

[0002] Root-knot nematodes are obligate endoparasites of plant roots, which cause great losses to my country's agricultural production every year. Surveys across the country have shown that almost all greenhouse vegetables such as watermelon, bitter gourd, melon, cucumber, tomato, loofah, celery, and open field vegetable plots have varying degrees of nematode diseases, especially in protected areas. It is more serious, and the serious ones will never be harvested. As a soil-borne disease, nematode disease is very difficult to control. At present, chemical insecticides such as thiazophos, carbosulfan, thiamephos, and methyl bromide are mainly used to control nematode diseases. Even in some areas where root-knot nematodes are seriously endangered, highly toxic chemical insecticides such as carbofuran and aldicarb are used to co...

Examples

Embodiment 1

[0018] Embodiment 1: dosage form preparation example

[0019] Add measured amount of magnesium aluminum silicate to the measured amount of water, stir well to dissolve, add appropriate amount of non-ionic emulsifier and add measured amount of Bacillus cereus at the same time, and form a suspending agent under sufficient and rapid stirring.

Embodiment 2

[0020] Embodiment 2: Example of using method

[0021] (1) The control effect of using method 1 on root-knot nematodes.

[0022] Location: Xinyi, Jiangsu Province Investigation period: 90 days after taking the medicine Time: 2009

[0023] potion

Dosage (ml / mu)

Anti-efficacy (%)

Bacillus cereus suspension

1000

72.5

Bacillus cereus suspension

1500

84.3

Bacillus cereus suspension

2000

90.6

[0024] (2) The control effect of using method 2 on root-knot nematodes.

[0025] Location: Xinyi, Jiangsu Province Investigation period: 90 days after taking the medicine Time: 2009

[0026] potion

Technical field:

[0001] The invention relates to the preparation and application technology of a bacillus cereus suspension. Background technique:

[0002] Root-knot nematodes are obligate endoparasites of plant roots, which cause great losses to my country's agricultural production every year. Surveys across the country have shown that almost all greenhouse vegetables such as watermelon, bitter gourd, melon, cucumber, tomato, loofah, celery, and open field vegetable plots have varying degrees of nematode diseases, especially in protected areas. It is more serious, and the serious ones will never be harvested. As a soil-borne disease, nematode disease is very difficult to control. At present, chemical insecticides such as thiazophos, carbosulfan, thiamephos, and methyl bromide are mainly used to control nematode diseases. Even in some areas where root-knot nematodes are seriously endangered, highly toxic chemical insecticides such as carbofuran and aldicarb are used to co...

Examples

Embodiment 1

[0018] Embodiment 1: dosage form preparation example

[0019] Add measured amount of magnesium aluminum silicate to the measured amount of water, stir well to dissolve, add appropriate amount of non-ionic emulsifier and add measured amount of Bacillus cereus at the same time, and form a suspending agent under sufficient and rapid stirring.

Embodiment 2

[0020] Embodiment 2: Example of using method

[0021] (1) The control effect of using method 1 on root-knot nematodes.

[0022] Location: Xinyi, Jiangsu Province Investigation period: 90 days after taking the medicine Time: 2009

[0023] potion

Dosage (ml / mu)

Anti-efficacy (%)

Bacillus cereus suspension

1000

72.5

Bacillus cereus suspension

1500

84.3

Bacillus cereus suspension

2000

90.6

[0024] (2) The control effect of using method 2 on root-knot nematodes.

[0025] Location: Xinyi, Jiangsu Province Investigation period: 90 days after taking the medicine Time: 2009

[0026] potion