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A rapeseed chemical andricidal slow-release granule and its preparation method and application

A technology of slow-release granules and rapeseed, which is applied in the field of rapeseed chemical andricidal slow-release granules and its preparation, can solve the problems of labor and time-consuming, poor stability of andricidal effect, and improvement of andricidal effect and stability, and achieve improved Stability, the effect of improving male killing effect

Active Publication Date: 2021-04-20
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the production of chemical andricide hybrids of rapeseed, the method of manually spraying chemical andricide 2-3 times in a strict window period is labor-intensive and time-consuming, and is easily affected by weather conditions such as rainfall and wind speed, and the male-killing effect is stable. poor
The method of using slow-release granules can overcome the shortcomings of being affected by the weather and the time-consuming and labor-intensive spraying, but how to make the slow-release granules sow at the same time as the rape seeds, and the release period of the active ingredients is the same as the formation period of the rapeseed parent chemical Adapting to induce male sterility, overcoming the labor-intensive and time-consuming drawbacks of artificially spraying chemical andricides 2-3 times during the strict window period, and significantly improving the malecide effect and stability have become technical difficulties

Method used

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  • A rapeseed chemical andricidal slow-release granule and its preparation method and application
  • A rapeseed chemical andricidal slow-release granule and its preparation method and application
  • A rapeseed chemical andricidal slow-release granule and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0022] This embodiment provides a rapeseed chemical andricidal slow-release granule, the preparation method of which comprises the following steps:

[0023] Select the andricide carrier as 500 ℃ biochar (BC500), the addition ratio is 1.0%, bentonite, the addition ratio is 10.0%, the surfactant cetyltrimethylammonium bromide (CTAB), the addition ratio is 0.1% . Add 0.1% of tribenuron-methyl, the rest is water (88.8% of the share), stir intermittently at room temperature for 24h overnight, this is the A-phase mixture. Phase B mixture includes inorganic filler bentonite and organic filler lignite humus, and the mass ratio of inorganic filler to organic filler is 9:1. A and B were mixed and stirred evenly according to the mass ratio of 1:10, and granulated with a particle size of 2-5mm to obtain tribesulfuron-methyl sustained-release preparation granules, and the granules were dried at a constant temperature at <50°C.

Embodiment 2

[0025] Select the andricide carrier as 500 ℃ biochar (BC500), the addition ratio is 1.0%, bentonite, the addition ratio is 10.0%, the surfactant cetyltrimethylammonium bromide (CTAB), the addition ratio is 0.1% . Add 0.1% of tribenuron-methyl, the rest is water (88.8% of the share), stir intermittently at room temperature for 24h overnight, this is the A-phase mixture. The Phase B mixture includes the inorganic filler bentonite. A and B were mixed and stirred evenly according to the mass ratio of 1:10, and granulated with a particle size of 2-5mm to obtain tribesulfuron-methyl sustained-release preparation granules, and the granules were dried at a constant temperature at <50°C.

Embodiment 3

[0027] This embodiment provides a rapeseed chemical andricidal slow-release granule, the preparation method of which comprises the following steps:

[0028] The selected andricide carrier includes 300 ℃ biochar (BC300), the addition ratio is 1.0%, bentonite, the addition ratio is 10.0%, the surfactant cetyltrimethylammonium bromide (CTAB), the addition ratio is 0.1% . Add 0.1% of tribenuron-methyl, the rest is water (88.8% of the share), stir intermittently at room temperature for 24h overnight, this is the A-phase mixture. Phase B mixture includes inorganic filler bentonite and organic filler lignite humus, and the mass ratio of inorganic filler to organic filler is 9:1. A and B were mixed and stirred evenly according to the mass ratio of 1:10, and granulated with a particle size of 2-5mm to obtain tribesulfuron-methyl sustained-release preparation granules, and the granules were dried at a constant temperature at <50°C.

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Abstract

The invention provides a rapeseed chemical andricidal slow-release granule and its preparation method and application. The method comprises: stirring and mixing 0.05-0.2% of the active ingredient and 8.55-14.2% of the carrier with 85.6-91.4% of water to obtain Phase A mixture; the active ingredient includes tribenuron-methyl; stir and mix the inorganic filler and organic filler to obtain a phase B mixture or stir the inorganic filler to obtain a phase B mixture; after stirring the phase A and phase B mixture evenly Get granulated. In the present invention, the chemical andricidal granules are mixed with the seeds of the female parent of rapeseed and then sowed at the same time. Since the release period of the active ingredients of the chemical andricidal granules covers the entire pollen development period of the female parent of rapeseed, the pollen of the female parent is aborted during the flowering stage. , can produce high-purity hybrids by crossing with the male parent. It is easy to operate, can greatly reduce the impact on the environment and climate, has good killing effect and strong stability.

Description

technical field [0001] The invention relates to the technical field of rapeseed chemical andricidal slow-release granules, in particular to a rapeseed chemical andricidal slow-release granule and its preparation method and application. Background technique [0002] The utilization of crop heterosis is one of the important ways to increase crop yield. A large number of studies and production practices have shown that rapeseed has obvious heterosis, and generally hybrid rapeseed can increase yield by more than 20%. Therefore, research on the use of heterosis in rapeseed has been highly valued. The utilization of heterosis can be divided into genetic and physiological heterosis utilization. Physiological heterosis utilization refers to the use of sterile types induced by external factors such as light, temperature, and chemicals as female parent materials, which are hybridized with normal fertile male parent materials to produce hybrid seeds for production. Among them, using ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/36A01N25/22A01N25/08A01G7/06A01P21/00
CPCA01G7/06A01N25/08A01N47/36Y02P60/21Y02A40/22
Inventor 周广生蒯婕汪波刘永红傅廷栋
Owner HUAZHONG AGRI UNIV