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Cultivation method of selenium-rich ratoon rice

A breeding method and technology of ratooning rice, applied in the direction of fertilization method, rice cultivation, botanical equipment and methods, etc., can solve the problems of affecting the effect of foliar spraying on the absorption effect of rice plants, many limiting factors, and insufficient effect, etc., to achieve Improvement of farming system and cultivation technology, reduction of cost, and rational adjustment of agricultural structure

Pending Publication Date: 2022-02-11
长沙顺顺农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The planting mode of selenium-enriched ratooning rice in the prior art has the following disadvantages: the fertilization time should be determined according to the height of the pile; the second season of rice needs to be topdressed twice to ensure high yield; the growth of two seasons of rice at the booting stage and the filling stage Each needs to spray selenium-enriched foliage fertilizer once to produce selenium-enriched rice. Since it takes a small amount and many times to achieve the effect, the cost is high and the effect is not enough; there are many uncontrollable problems, such as rainy or strong winds, which will affect the effect of foliar spraying and the absorption effect of rice plants are limited by many factors

Method used

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  • Cultivation method of selenium-rich ratoon rice

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Cut the straw of the previous year into 3-4 sections, spread them evenly in the field, and then pour water and plow them immediately to prevent the straw from drying and affecting the decomposition rate of rotting. In rice fields harvested by machinery, the pile height is relatively moderate, which is also conducive to plowing, and the straw is easy to rot, and the fertilizer efficiency is also high. Do not irrigate deep water for a long time in the field, otherwise it will increase the soil reductivity, damage the root system, and affect respiration and nutrient absorption. After the seedlings turn green, it is advisable to adopt shallow water frequent irrigation, dry and wet, and often open fields to eliminate toxic substances and coordinate the relationship between water, fertilizer, air, and heat. Potassium in rice straw is easily leached, and the fertilized water should not be released outside the field as much as possible to reduce fertilizer loss.

[0042] Befor...

Embodiment 2

[0050] Apply 40-50 kg of 45% compound fertilizer per mu as the base fertilizer before harrowing the field, apply 8-10 kg of urea per mu in combination with weeding 5-7 days after transplanting; apply 10 kg of compound fertilizer per mu and add 10 kg of potassium chloride after drying the field for rehydration; Ten days before harvest in the first season, 10 kg of urea was applied per mu as a "germination-promoting" fertilizer.

[0051] The first crop rice is harvested in time when it matures in mid-to-late July (reaching 85%-90% maturity). When harvesting, the pile height is 8-12cm. Repeated rolling is reduced during harvesting, and watering is timely after harvesting.

[0052] Harvest management in the regrowth season: Harvest in time when the regrowth season matures (reaches 90% maturity) in mid-to-late September.

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Abstract

The invention discloses a cultivation method of selenium-enriched ratoon rice. The method comprises the following steps: dressing 14-16kg of selenium-enriched fertilizer per mu when seedlings grow to 2-3 leaves in a rice seedling raising stage; adopting quick lime for killing insects in a rice field before seedling transplanting; applying 20-25 kilograms of selenium-enriched fertilizer to each mu of land three to seven days before or after the first season of rice is transplanted; when the first season of rice grows into a booting stage and a grain filling stage, spraying once respectively foliar organic selenium fertilizer . The selenium-rich ratoon rice is planted through the method, a large amount of high-quality selenium-rich rice can be produced with the cost reduced, and the method has very important significance in improving the life quality of people and meeting the requirements of people for health-care rice. The rice production is developed, the development of the agricultural technology is promoted, other agricultural applicable technologies are widely applied to agricultural production, the agricultural structure is reasonably adjusted, the farming system and the cultivation technology of rice fields are improved and popularized, and the production potential of the rice fields is fully exerted.

Description

technical field [0001] The invention relates to the technical field of crop planting, in particular to a method for cultivating selenium-enriched ratooning rice. Background technique [0002] Raising rice is a mode of rice planting. When the first season of rice matures, there will be some axillary buds. When the first crop of rice is mature, cut off the upper 2 / 3 of the rice plant, collect the rice ears, and leave the lower 1 / 3 Plants and root systems still contain tenacious vitality. Proper fertilization and cultivation can grow another crop of rice, and harvest the second crop after maturity. After harvesting in the first season, they were kept. On the basis of the original root system, these axillary buds grew again and headed. After about 2 months, they matured again and could be harvested. Usually the grains of rice in the second season are smaller than those in the first season, but the number of rice spikes is more than that in the first season. [0003] Selenium-e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22A01C21/00A01G13/00
CPCA01G22/22A01C21/005A01G13/00
Inventor 喻伯红
Owner 长沙顺顺农业有限公司
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