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Special rice selenium fertilizer and preparation method thereof, and method for producing selenium-rich rice

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

Active Publication Date: 2014-05-28
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 rice selenium fertilizer and preparation method thereof, and method for producing selenium-rich rice

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Experimental program
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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 0.016 mg / 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: 600 mm in length, 280 mm in width, and 10 mm in depth; rice straw, wheat straw, corn straw, reed, etc. The material filling material is crushed into small pieces, and biomass materials such as wood chips and rice husks are added at the same time, and the dry soil and selenium source are respectively crushed into powder, and the particle size is less than 48 μm, and the proportion of nano-scale is 5~15% , then coarsely mix the selenium source powder, dry fine soil powder and small pieces of biomass filling material according to the ratio in the table below, then add them to the mixer and mix them well, and keep spraying water to make them moist during the mixing process. 60% of the amount of fine soil, see the table below for details; put a piece of paper the same size as the bottom of the tray in the tray mold, and then divide the obtained paste selenium-con...

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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 Applications(China)
IPC IPC(8): C05G3/00A01G16/00A01C21/00A01G22/22
Inventor 李飞
Owner SUZHOU SETEK
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