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

A technology for rice and selenium fertilizer, applied in the fields of botanical equipment and methods, fertilization methods, rice cultivation, etc., can solve problems such as unfavorable standardized production, inability to quantitatively control the content of selenium in rice, etc., achieve accurate fertilizer application sites, and solve selenium deficiency. effect of the problem

Active Publication Date: 2015-11-18
SUZHOU SETEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to regional differences in soil selenium content in selenium-rich areas, it is impossible to quantitatively control the selenium content in rice, which may exceed the national limit standard
There are geographical limitations and instability, which are not conducive to large-scale standardized production

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Choose a rice planting base, select a plot of 7×19=133 square meters (0.2 mu), build a ridge with a width of 0.5 meters around each plot and keep a separation distance of 1 meter, and each plot has a separate drainage and irrigation canal. Select one of the plots as a control group for conventional rice cultivation (do not add the selenium fertilizer for rice of the present invention), and the other groups that add selenium fertilizer adopt the same cultivation technique as the control group. Rice, measure the selenium content of rice, record the selenium content of control group rice to be 0.016mg / kg.

Embodiment 2-13

[0027] First, make a tray-type mold with the same specifications as the seedling tray. The size of the tray-type mold is: 600mm in length, 280mm in width, and 10mm in depth; rice straw, wheat straw, corn straw, reed and other biomass filling materials Crushed into small pieces, adding wood chips, rice husks and other biomass materials at the same time, crushing dry soil, selenium source, respectively into powder, the particle size of which is less than 48 μm, and the proportion of nano-scale is 5-15%, and then Selenium source powder, dry fine soil powder and a small section of biomass filling material are roughly mixed according to the ratio in the table below, and then added to the mixer and mixed thoroughly. During the mixing process, water is continuously sprayed to make it moist. 60% of 60%, see the following table for details; pad a piece of paper with the same size as the bottom surface of the tray in the tray mold, then divide the prepared paste selenium-containing ferti...

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Abstract

The invention discloses a special rice selenium fertilizer and a preparation method thereof, and a method for producing selenium-rich rice. The selenium fertilizer comprises the following ingredients in parts by weight: 1-10 parts of a selenium source based on selenium, 500-1000 parts of dried fine earth, and 50-200 parts of a biomass filling material. The method for producing the selenium-rich rice comprises the following steps: when transplanting rice seedlings, synchronously applying the selenium fertilizer to the roots of rice seedlings. The rice cultured with the selenium fertilizer provided by the method has the selenium content up to 0.15 mg / kg, and the utilization rate of the selenium fertilizer is higher than that of fertilizer applied in the rice growth process after transplanting.

Description

technical field [0001] The invention belongs to the field of crop planting, and in particular relates to a special selenium fertilizer for rice, its preparation and a method for producing selenium-enriched rice. Background technique [0002] Rice is the main food crop in my country, and the population whose staple food is rice accounts for about 50% of the total population. my country's rice planting area reaches 29.96 million hectares, with a vast distribution area. Due to historical reasons such as food pressure, my country's rice production used to aim at high yield, and paid less attention to the content of rice microelements. With the increasing living standards of residents and the development of foreign trade, the development of microelement-enriched rice technology will continue to grow. received more attention. [0003] Selenium, the element symbol Se, is an essential trace element for the human body and the active center of glutathione peroxidase (GSH-Px). and ot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00A01G16/00A01C21/00A01G22/22
Inventor 李飞
Owner SUZHOU SETEK
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