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An additive for improving the fertilizer efficiency of peat-based seedling raising substrates and its preparation method

A seedling-raising substrate and additive technology, which is applied in planting substrates, botany equipment and methods, culture media, etc., can solve the problems of poor water supply buffer, increased leaching loss, and increased irrigation water volume, so as to reduce irrigation The effect of reducing the frequency, reducing the comprehensive use cost, and simplifying the production process

Active Publication Date: 2021-08-27
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In actual seedling production, in order to make up for the poor water retention and buffering properties of peat-based substrates, it is often solved by increasing the amount of irrigation water and irrigation frequency, but the increase in irrigation water also means that the leaching of substrate water will decrease. Nutrients added to the matrix are also more likely to be lost with a large amount of water leaching

Method used

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  • An additive for improving the fertilizer efficiency of peat-based seedling raising substrates and its preparation method
  • An additive for improving the fertilizer efficiency of peat-based seedling raising substrates and its preparation method
  • An additive for improving the fertilizer efficiency of peat-based seedling raising substrates and its preparation method

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preparation example Construction

[0030] In the present invention, the preparation method of the additive comprises the following steps:

[0031] 1) After mixing paclobutrazol wettable powder with an effective content of 14-16% with water, a suspension is obtained;

[0032] 2) mixing the suspension obtained in step 1) with the agricultural silicone to obtain a mixture;

[0033] 3) mixing the mixture obtained in the step 2) with perlite, and drying the perlite after completely adsorbing the mixture to obtain adsorbed perlite;

[0034] 4) Soak the activated carbon in the ferrous sulfate solution for 20-28 hours, and dry the obtained soaked activated carbon to obtain the infiltrated activated carbon;

[0035] 5) mixing the adsorbed perlite obtained in step 3) with the infiltrated activated carbon obtained in step 4) to obtain an additive;

[0036] The steps 1)-3) and step 4) are not limited in time order.

[0037] The invention mixes the paclobutrazol wettable powder with an effective content of 14-16% and wat...

Embodiment 1

[0057] Take 0.14g of paclobutrazol wettable powder with an effective content of 15%, add it to 100ml of water, mix it into a uniform suspension, add 0.5ml of liquid agricultural silicone, and stir evenly; add 500ml of perlite with an average particle size of 5mm, mix and absorb, and let it dry Dry for later use to obtain adsorbed perlite with a water content below 40%; for configuration, add 50g of ferrous sulfate to 1000ml of water to form a 5% ferrous sulfate solution, weigh 30g of shell activated carbon with an average particle size of 1.5mm, and put in ferrous sulfate After soaking in the solution for 24 hours, take it out, and dry naturally to obtain infiltrated activated carbon with a water content below 40%. Take 20g of infiltrated activated carbon (about 100ml) and mix evenly with 400ml of adsorbed perlite to obtain the additive. Mix the additive and the peat that has passed through a 2mm sieve evenly in a volume ratio of 1:10, and configure it as a cultivation substra...

Embodiment 2

[0066] For the seedling-raising substrate obtained in Example 1, according to the conventional rice seedling-raising process, 120 g of rice sprouts were raised with the seedling-raising substrate, put into a seedling-raising tray and smoothed, and the seedlings were raised according to the conventional method. The rice variety was Liaojing 399. The results are shown in Table 3.

[0067] Table 3 Rice growth parameters

[0068]

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Abstract

The invention provides an additive for improving the fertilizer efficiency of peat-based seedling-raising substrates and a preparation method thereof, belonging to the technical field of property improvement of seedling-raising substrates. The additive includes adsorption perlite and infiltration activated carbon; the volume ratio of the adsorption perlite and infiltration activated carbon is (6~10):(1~3); the adsorption perlite adsorption paclobutrazol and agricultural organic silicon ; The infiltrated activated carbon is adsorbed with ferrous sulfate. The seedling-raising substrate made by mixing the additive for improving the fertilizer efficiency of peat-based seedling-raising substrates provided by the invention with peat, can improve the water retention and rewetting properties of the seedling-raising substrate under the condition that the existing production process and fertilizer addition amount are basically unchanged, Fertility does not decrease, and there is no phenomenon of shedding fat in the later stage of seedling cultivation.

Description

technical field [0001] The invention belongs to the technical field of improving properties of seedling-raising substrates, and in particular relates to an additive for improving the fertilizer efficiency of peat-based seedling-raising substrates and a preparation method thereof. Background technique [0002] Substrate-based seedling cultivation has become an ascendant development direction in rice and vegetable production, and is an indispensable link in the process of large-scale and professional agricultural production. The substrate with good properties has the characteristics of small bulk density, strong water holding capacity, large base exchange capacity, good water absorption and air permeability. Compared with conventional soil seedling cultivation, matrix seedling cultivation has the advantages of simple usage, less planting, labor saving, time saving, land saving, and easy management. The seedlings (seedlings) grown on the substrate products with excellent proper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G24/10A01G24/15A01G24/30
Inventor 马建鲁彩艳陈欣
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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