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Special calcium fertilizer for rice and its preparation and method for producing calcium-enriched rice

A technology of rice and calcium fertilizer, applied in botany equipment and methods, rice cultivation, application, etc., can solve the problems of inability to achieve calcium fortification effect, unfavorable absorption, low utilization rate, etc., achieve high absorption and utilization rate of human body, and solve shortcomings Calcium problem, the effect of broad application prospects

Active Publication Date: 2016-03-09
MICROHARBOR BIOTECH JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The general plant calcium fortification method is to directly soak the rice in calcium salt. Although this method can increase the calcium content in the rice, what is added is ionic calcium that is not easily absorbed by the human body, and its absorbability and safety cannot be guaranteed.
[0004] The calcium nutrition enhancement technology mentioned in the Chinese patent application number CN102106509 named "A Production Method of Zinc-rich Rice" is to soak wheat or rice grains in calcium salts, force the grains to absorb calcium salts, and then dry them The grain, after testing, has indeed achieved the purpose of calcium enrichment, but this fortification method is not enriched by plants during the growth of wheat or rice. The fortified calcium is inorganic calcium, which is not conducive to human body absorption. Its safety and Controllability is also questioned
[0005] The production method of high-calcium rice mentioned in the patent application titled "Production Method of High-Calcium-Selenium-Enriched Healthy Rice" with the Chinese patent application number 201110320591.7 is to directly apply 400~500kg / hm of base fertilizer in the soil 2 , the technical solution cannot achieve the effect of strengthening calcium, and its utilization rate is also low, and there is no further explanation on the effect of improving the calcium content and form of calcium in the final rice grain
[0006] In addition, among the current agricultural practices, many reports describe the application of calcium fertilizers (such as calcium oxide) to the soil, but these measures are mainly used to adjust the pH value of acidic soils, and these calcium application measures do not significantly Increased calcium content in grains, these reports do not solve the problem of calcium fortification of grains

Method used

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  • Special calcium fertilizer for rice and its preparation and method for producing calcium-enriched rice

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Experimental program
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Effect test

Embodiment 1

[0027] The rice field in Dingyan Town, Rugao City, Jiangsu Province was selected as the fertilizer effect test field. The rice cultivar was Huaidao-7, which is widely planted in the plain area of ​​the lower reaches of the Yangtze River. Each small test group was set to 7×19=133 square meters (0.2 mu ) of the residential area, build a ridge with a width of 0.5 meters around each residential area and keep a separation distance of 1 meter, and each residential area is equipped with a separate irrigation and drainage channel. Select one of the plots as a control group for conventional rice cultivation (do not add the special calcium fertilizer for rice of the present invention), and the group that adds the special calcium fertilizer for rice of the present invention adopts the same cultivation technique as the control group. Ears were threshed and rice milled, and the calcium content of the rice was measured, and the calcium content of the rice in the control group was measured to...

Embodiment 2-13

[0029] First, make a tray-type mold with the same specifications as the standard seedling tray, the size of the tray-type mold is: length 580mm, width 280mm, depth 10mm; biomass filling materials: rice straw, wheat straw, corn straw and The reeds are crushed into small pieces, and mixed with wood chips and rice husks at the same time; the dry fine soil, calcium source, and activator (a mixture of sulfur and humic acid 1:1) are respectively crushed into powders, and the particle size is less than 48 μm, of which nano The proportion of the grade is 5~15%, then roughly mix the calcium source powder, dry fine soil powder, activator powder and biomass filling material according to the ratio in the table below, then add it to the mixer and mix it well, and keep stirring during the mixing process Spray water to make it moist, the amount of said water accounts for 60% of the amount of dry fine soil, see the table below for details; put a piece of paper as large as the bottom of the tra...

Embodiment 14-20

[0034] First, make a tray-type mold with the same specifications as the standard seedling tray, the size of the tray-type mold is: length 580mm, width 280mm, depth 10mm; biomass filling materials: rice straw, wheat straw, corn straw and The reeds are crushed into small pieces, and mixed with wood chips and rice husks at the same time; the dry fine soil, calcium source, and activator (a mixture of sulfur and humic acid 1:1) are respectively crushed into powders, and the particle size is less than 48 μm, of which nano The proportion of grades is 5~15%, and then the calcium source powder (calculated as calcium 0.4~2.4kg, each group is weighed according to the amount in the table below), dry fine soil powder (7.5kg), small pieces of raw Substance filling material (1kg) and activator powder (0.25kg) are roughly mixed, then added to the mixer and fully mixed evenly. During the mixing process, water is continuously sprayed to make it moist. The amount of water accounts for 40% of the ...

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Abstract

The invention discloses a special calcium fertilizer for paddy, a preparation of the special calcium fertilizer and a method for producing calcium-rich rice. The special calcium fertilizer for paddy comprises the following components in parts by weight: 40-280 parts of calcium sources based on weight of calcium, 500-1,000 parts of dried fine soil, 4-40 parts of activators, and 50-200 parts of biomass filler materials. The method for producing calcium-rich rice is that the special calcium fertilizer for paddy is synchronously applied to the root part of a rice seedling when the paddy is planted. By using the special calcium fertilizer for paddy and the method for producing the calcium-rich rice disclosed by the invention, the calcium content can be up to 230mg / kg, and is over twice that of common rice.

Description

technical field [0001] The invention belongs to the field of crop planting, and in particular relates to a special calcium fertilizer for rice, its preparation and a method for producing calcium-enriched rice. Background technique [0002] As a nutrient element necessary for plant growth and development, calcium plays an extremely important role in plants. It is an indispensable element for the formation of the cell wall glue layer and is necessary for plant development. At the same time, it can maintain the integrity of the cell membrane and prevent cell aging. It can also promote the transport of photosynthetic products and prevent the poisoning of metal ions and oxalic acid to plants. At the cellular level, it is a key signaling molecule in the plant cell stimulus-response signal transduction mechanism, involved in mediating reproductive growth and various stress defense responses, etc. Calcium is an essential element in large quantities for the human body, and is the fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00A01G16/00A01G22/22
Inventor 王张民潘斐刘琦毛彦军
Owner MICROHARBOR BIOTECH JIANGSU
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