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Paddy rice sprout cultivation composite nutrient medium, and preparation method thereof

A nutrient matrix and rice seedling raising technology, which is applied in the direction of urea compound fertilizer, fertilizer mixture, application, etc., can solve the problems of weak water and fertilizer retention capacity of river sand, great difference in physical and chemical properties, low water conductivity and air permeability, etc., and achieve the goal of increasing production. The effect of obvious increase in cost, saving transportation costs and increasing farmers' economic benefits

Inactive Publication Date: 2017-06-20
INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different materials have great differences in physical and chemical properties such as water holding, water conduction, pore condition, density, water permeability and air permeability, water retention and fertilizer retention, and nutrient content. Strong ability, but low nutrient content, and weak water and fertilizer retention ability of river sand; organic materials such as barn manure and mushroom dregs have strong water and fertilizer retention ability, can be taken from villages locally and turn waste into treasure, but the water conductivity and air permeability are low; peat Rich in fiber content, loose and porous, good ventilation and water permeability, large specific surface area, strong adsorption and chelation capabilities, strong ion exchange and salt balance control capabilities, and can enhance plant resistance to drought, disease, low temperature, and salt erosion It is widely used as a substrate material for seedlings, but peat is mainly distributed in the northeast of my country, and it needs long-distance transportation. The resources and quantity are very limited. Find other materials to replace
However, in recent years, with the development of my country's industrial and agricultural modernization, rural areas or factories have basically changed to gas or electricity, and the number of rice husks used as fuel is very small, resulting in a large number of rice husks being abandoned in the wilderness, which not only pollutes the environment, but also wasted resources

Method used

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  • Paddy rice sprout cultivation composite nutrient medium, and preparation method thereof
  • Paddy rice sprout cultivation composite nutrient medium, and preparation method thereof
  • Paddy rice sprout cultivation composite nutrient medium, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Preparation of carbonized rice husk: Take pure rice husk, a by-product of the rice processing factory, and put it into a cylindrical aluminum box with a volume of 2L, and squeeze it down with a wooden mallet to compact the rice husk as much as possible to remove air. . Then screw on the cap to keep it airtight. Repeat this filling process for a total of 16 packs. Put 8 aluminum boxes among them in the muffle furnace, heat, adjust the temperature controller at 335°C, pay attention to observation, and keep the temperature in the furnace at 330-340°C. Continue for 3.5 to 4.5 hours. When there is no white water vapor or smoke in the furnace, cut off the power supply, cool down to room temperature naturally, and pour it out to be carbonized rice husk. Repeat this process and carbonize another 8 boxes of rice husks for later use.

[0039] Pretreatment of attapulgite powder, vermiculite and peat: Take 50L each of commercial attapulgite, vermiculite and peat, and pass attapu...

Embodiment 2

[0043] In Example 2 and the following Example 3, the preparation of carbonized rice husk, the pretreatment of peat and vermiculite, and the preparation method and process of seedling strengthening agent are the same as in Example 1 above.

[0044] Measure 8.0L, 18.5L, 17.0L, 4.5L, and 2.0L of carbonized rice husk, peat, vermiculite, attapulgite, and seedling strengthening agent prepared or treated above, mix well, and pass through a sieve with an aperture of 10mm. The finished matrix 50L was obtained, which was the No. 2 matrix prepared by the present invention.

Embodiment 3

[0046] Measure and mix 31.0L, 9.5L, 5.5L, 3.0L and 1.0L of carbonized rice husk, peat, vermiculite, attapulgite and seedling strengthening agent prepared or treated above, mix well, and pass through a 10mm aperture sieve , to obtain the finished matrix 50L, which is No. 3 matrix prepared in the present invention.

[0047] Take by weighing the above-mentioned No. 1, 2, 3 substrates prepared in an appropriate amount respectively, and measure the water physical properties, organic matter, nutrient content and salinization index of the substrates according to "Soil Agrochemical Analysis" edited by Bao Shidan and published by China Agricultural Press in 2000. Listed in Table 1 and Table 2.

[0048] The test result of table 1 shows that 3 kinds of rice seedling-raising special-purpose composite nutritional substrates prepared by the present invention all have good water retention, water supply and aeration capacity, moderate bulk density, and salinity meets the requirements, satisfy...

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Abstract

The invention discloses a paddy rice sprout cultivation composite nutrient medium, and a preparation method thereof. The paddy rice sprout cultivation composite nutrient medium is prepared from, by volume, 10 to 65% of carbonized rice husk, 25 to 60% of grass carbon, 10 to 60% of vermiculite, 1 to 5% of a seedling strengthen agent, and 5 to 20% of attapulgite powder. According to the preparation method, the above raw materials are mixed to be uniform, and an obtained mixture is sieved using a sieve with a pore diameter ranging from 8 to 10mm so as to obtain a finished product. The paddy rice sprout cultivation composite nutrient medium is excellent in water retention and water supply capacity, is reasonable in nutrient combination, is capable of supplying nutrients at a ratio needed by the growth of rice seedlings, is capable of increasing seedling emergence speed and seedling emergence rate, promoting root system growth, obtaining short strong high-quality seedlings, increasing machine rice transplantation survival rate, reducing seedling missing rate, increasing rice yield, reducing transportation cost of purchase of culture medium, reducing medium cost and sprout cultivation cost, increasing economic income of farmers, increasing labor productivity, and is especially suitable to be used in the southern Jianghuai hilly region.

Description

technical field [0001] The invention relates to the technical fields of agricultural production materials, agricultural solid organic waste recycling and application thereof, in particular to a rice seedling-raising composite nutrient matrix and a preparation method thereof. Background technique [0002] Rice is the main food crop in China. In the 60 years since the founding of New China, the total area of ​​rice planted in my country has reached an average of 3.094×10 7 hm 2 , accounting for 27% of the total sown area of ​​grain crops in my country; the average annual output is 1.333×10 8 t, accounting for 42% of the total grain output, ranking first in grain crops. my country's rice planting area is second only to India, but its total output ranks first in the world, and it is the country that produces the most rice in the world. In 2014, the rice planting area in my country was 3.031×10 7 hm 2 , total output up to 2.065×10 8 t. Therefore, the development of rice pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00C05C3/00C05C9/00C05D1/02C05D9/00C05D9/02C05F11/02
Inventor 李录久吴萍萍姚文麒王明秀王家嘉王献志汪明云耿言安杨中保杨泽峰马连郭海杨生华张兆坤李新耀张华
Owner INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI
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