Cold-resistant flooding-resistant seed coating agent for direct seeding rice, and preparation method and use method thereof

A coating agent and seed technology, applied in the agricultural field, can solve problems such as the decline in the ability to absorb water and mineral nutrients, the imbalance of assimilate metabolism, and the destruction of cell membrane structure, so as to increase the activity and soluble protein content, enhance resistance, and improve The effect of germination

Inactive Publication Date: 2020-11-10
JIANGXI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sustained low temperature during the budding stage of rice will lead to a decrease in the ability of the root system to absorb water and mineral nutrients, damage to the cell membrane structure, imbalance of assimilate metabolism, and abnormal respiration, resulting in rotten seedlings, dead seedlings, reduced seedling rate, and delayed growth and development, thereby reducing yield
Therefore, cold damage and flooding lead to the "difficulty of full seedlings" of direct-directed rice seeds, which limits the development of direct-directed rice production. Improving the cold and flood tolerance of direct-directed rice seeds is of great significance for achieving high-yield and high-efficiency direct-directed rice. , On the basis of rice varieties with good emergence, the method of improving the cold resistance and flooding resistance of direct-seeding rice seeds through seed soaking or seed coating methods has not been effectively solved.

Method used

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  • Cold-resistant flooding-resistant seed coating agent for direct seeding rice, and preparation method and use method thereof
  • Cold-resistant flooding-resistant seed coating agent for direct seeding rice, and preparation method and use method thereof
  • Cold-resistant flooding-resistant seed coating agent for direct seeding rice, and preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]Direct-directed rice cold-resistant and flood-resistant seed coating agent formula 1: 0.25g of proline, 0.25g of alginic acid, 20g of agricultural type water-absorbing resin, 10g of calcium peroxide, 5g of ginkgo pulp extract, 5g of iron sulfate, 5g of magnesium sulfate, sulfuric acid Molybdenum 5g, zinc sulfate 5g, manganese sulfate 5g, borax 5g, auxin IAA 0.2g, shellac acid 50g, attapulgite 884.3g. The cold-resistant and flood-resistant seed coating agent for direct-directed rice is produced according to the preparation method and the use method of the present invention. Among them, the mass ratio of coating agent and seeds is 1:2.5. Controls were uncoated rice seeds. Each treatment was repeated 3 times, and the low-temperature and flooding treatments were carried out according to the above-mentioned experimental materials and experimental methods.

[0047] Table 1 Effects of seed coating agents on the quality of direct-seeding rice seedlings under low temperature tr...

Embodiment 2

[0056] Direct-directed rice cold-resistant and flood-resistant seed coating agent formula 2: 0.25g of sodium nitrophenolate (SNP) aqueous solution, 0.25g of trehalose, 50g of agricultural type water-absorbing resin, 30g of potassium peroxide, 8g of ginkgo pulp extract, and 10g of iron sulfate , magnesium sulfate 10g, molybdenum sulfate 10g, zinc sulfate 10g, manganese sulfate 10g, borax 10g, α-naphthalene acetic acid 0.2g, betalain 50g, bentonite 801.3g. The cold-resistant and flood-resistant seed coating agent for direct-directed rice is produced according to the preparation method and the use method of the present invention. Wherein, the mass ratio of coating agent and seeds is 1:1.5. Controls were uncoated rice seeds. Each treatment was repeated 3 times, and the low-temperature and flooding treatments were carried out according to the above-mentioned experimental materials and experimental methods.

[0057] Table 3 Effects of seed coating agents on the quality of direct-s...

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Abstract

The invention relates to the technical field of agriculture. The invention provides a cold-resistant flooding-resistant seed coating agent for direct seeding rice. The cold-resistant flooding-resistant seed coating agent comprises a cold-resistant active component, a penetrant, an oxygen producer, an insecticidal bactericide, a trace element fertilizer, a plant growth regulator, an adhesive and anatural pigment. The invention also provides a preparation method of the cold-resistant flooding-resistant direct seeding rice seed coating agent. The preparation method comprises the following steps:accurately weighing the cold-resistant active component, the penetrant, the oxygen producer, the insecticidal bactericide, the trace element fertilizer and the plant growth regulator in proportion, conducting uniform stirring to obtain a mixture, grinding the mixture, weighing the adhesive and the natural pigment, adding the adhesive and the natural pigment into the mixture, conducting uniform stirring, performing quantitative packaging and carrying out hermetic storing. According to the invention, the cold resistance and flooding resistance of the direct seeding rice can be improved, seedling quality is improved, seedlings and roots are strengthened, the use amount of the agent is small, components are easy to obtain, cost is low, and the preparation method is simple.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a cold-resistant and flood-resistant seed coating agent for direct-seeding rice, a preparation method and a use method thereof. Background technique [0002] Direct-seeding rice is a primitive cultivation method. Because of its labor-saving operation, high yield, short growth period and good for large-scale production, the planting area has been expanding year by year, but direct-seeding rice production also faces many problems. Direct-directed rice is exposed in the field after sowing, and is vulnerable to environmental stress, especially low temperature and flooding in early spring, which seriously restrict the growth and development of rice. Every year, 3-5 billion kilograms of rice production is lost due to low temperature and chilling damage, and the planting area of ​​crops affected by flooding accounts for 12% of the world's total. [0003] Rice roots have develope...

Claims

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Application Information

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IPC IPC(8): A01N65/00A01N43/38A01N43/36A01N43/16A01N37/10A01N33/22A01N25/00A01P1/00A01P3/00A01P7/00A01P7/04A01P21/00A01C1/06C05G3/00C05G3/60
CPCA01C1/06A01N25/00A01N33/22A01N37/10A01N43/16A01N43/36A01N43/38A01N65/00C05D3/00C05G3/00C05G3/60C05D5/00C05D9/02C05F11/10
Inventor 郭琳曾研华曾勇军吴自明磨冬枝崔保玲谭雪明潘晓华石庆华
Owner JIANGXI AGRICULTURAL UNIVERSITY
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