CN104429860A - Seedling culturing substrate slow in nutrition release - Google Patents
Seedling culturing substrate slow in nutrition release Download PDFInfo
- Publication number
- CN104429860A CN104429860A CN201410774643.1A CN201410774643A CN104429860A CN 104429860 A CN104429860 A CN 104429860A CN 201410774643 A CN201410774643 A CN 201410774643A CN 104429860 A CN104429860 A CN 104429860A
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- Prior art keywords
- parts
- slow
- volume
- seedling
- ureaformaldehyde
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/02—Fertilisers containing urea or urea compounds containing urea-formaldehyde condensates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
Abstract
The invention discloses a seedling culturing substrate slow in nutrition release. By volume, 50-60 parts of turfy soil, 10-20 parts of fine vermiculite, 10-20 parts of perlite and 5-10 parts of slag are mixed to obtain basic composition; 800-1000g of urea formaldehyde and 100-200g of plant ash are added to each cubic meter of the basic composition; the seedling culturing substrate slow in nutrition release is acquired after even mixing. The seedling culturing substrate slow in nutrition release has the advantages that the substrate has sufficient nutrition needed by crop seedling growth, the nutrition is brought into play through slow release, seedling burning is avoided, and topdressing during seedling culturing is not needed.
Description
Technical field
The present invention relates to a kind of seedling medium, be specifically related to a kind of nutrition slow-release type seedling medium.
Background technology
Existing most of seedling medium nutrient content is few, is not enough to provide crops seedling stage to grow required nutrient.Therefore how actual production use the initial stage to add the elements such as a certain amount of available nitrogen, phosphorus, potassium in matrix; Or after crop emerges, use nutrient solution.First kind of way asks all extremely strict, extremely difficult control in practice for the adding proportion of the elements such as available nitrogen, phosphorus, potassium, consumption are confidential in time, and misoperation is easy to cause crop to burn seedling.The second way then exist take a lot of work bothersome, complicated operation and not wield shortcoming.
Summary of the invention
The present invention aims to provide the preparation method of a kind of slow-release nutrient seedling medium and sustained release component thereof, technical problem to be solved is, described seedling medium has crops seedling stage and to grow required enough nutrients, nutrient component is played a role by slowly-releasing, can not seedling be burnt, and not need between nursery stage to topdress.
In order to solve the problems of the technologies described above, present invention employs following technical scheme.
A kind of slow-release nutrient seedling medium, is characterized in that, first by the turfy soil of 50 ~ 60 parts by volume, and the thin vermiculite of 10 ~ 20 parts by volume, the perlite of 10 ~ 20 parts by volume, the slag ash of 5 ~ 10 parts by volume is mixed to get base composition; Then in every cubic metre of base composition, add ureaformaldehyde 800 ~ 1000g and ash 100 ~ 200g; Finally mix and obtain slow-release nutrient seedling medium.
Described ureaformaldehyde is prepared from according to following steps:
1), 1m is added in a kettle.
3water, is heated to 70 ~ 80 DEG C, adds urea 700 ~ 900Kg, treats that urea dissolves in backward reactor and adds formaldehyde 0.7 ~ 0.9m
3, formaldehyde need add in 10 ~ 15 minutes;
2), add acid for adjusting pH value, when pH value reaches between 4.4 ~ 4.6, stop acid adding; When temperature rises to about 62 ~ 68 DEG C, throw in urea 150 ~ 250Kg, temperature controls at about 58 ~ 62 DEG C, and controls between 4.4 ~ 4.6 by pH value, reacts 30 ~ 90 minutes, adds adjusting PH with base value to about 8, cessation reaction;
3), by material squeeze into filter press, squeeze to ureaformaldehyde water content 20 ~ 30%, dry material obtains ureaformaldehyde through drying system drying.
Feature of the present invention is:
The first, seedling medium of the present invention has crops seedling stage and to grow required enough nutrients, and nutrient component is played a role by slowly-releasing, can not burn seedling, and does not need between nursery stage to topdress.
The second, ureaformaldehyde slow-release fertilizer production technology of the present invention have employed the one-step method ureaformaldehyde preparation under the acid condition of pH4.4 ~ 4.6, and the unique method by terminating to react about raising pH value to 8, simple to operate, the reaction time is short, significantly shorten the production cycle, improve production efficiency.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
It is below ureaformaldehyde preparation example.
Add 1m in a kettle.
3water, is heated to 75 DEG C, adds urea 800Kg, opens formaldehyde pump and add formaldehyde 0.8m after urea dissolves in reactor
3, formaldehyde added in 10 minutes.Now temperature is at about 40 DEG C, starts to add acid for adjusting pH value, needs slowly to add during acid adding, when pH value reaches between 4.4 ~ 4.6, stops acid adding.Now temperature slowly rises (exothermic heat of reaction intensification), observing response still material situation.When temperature rises to 65 DEG C of (exothermic heat of reaction intensification) left and right, throw in urea 200Kg, observe temperature, temperature controls about 60 DEG C (as too high employing circulating water coolings), observe pH value simultaneously, pH value is controlled between 4.4 ~ 4.6, react 60 minutes, add adjusting PH with base value to about 8, cessation reaction.After end, by membrane pump, material is squeezed into filter press, through filter press twice squeezing, (after press filtration, ureaformaldehyde water content is about 25%), dry material obtains ureaformaldehyde through drying system (drying system temperature controls at 80 ~ 82 DEG C) drying.
It is below slow-release nutrient seedling medium preparation example.
Slow-release nutrient seedling medium preparation example one
By the turfy soil of 50 parts by volume, the thin vermiculite of 20 parts by volume, the perlite of 10 parts by volume, the slag ash of 10 parts by volume is mixed to get base composition.Ureaformaldehyde 800g and ash 200g prepared by ureaformaldehyde preparation example of the present invention is added in every cubic metre of base composition.Mix.
Slow-release nutrient seedling medium preparation example two
By the turfy soil of 60 parts by volume, the thin vermiculite of 10 parts by volume, the perlite of 20 parts by volume, the slag ash of 5 parts by volume is mixed to get base composition.Ureaformaldehyde 1000g and ash 100g prepared by ureaformaldehyde preparation example of the present invention is added in every cubic metre of base composition.Mix.
Slow-release nutrient seedling medium preparation example three
By the turfy soil of 55 parts by volume, the thin vermiculite of 15 parts by volume, the perlite of 15 parts by volume, the slag ash of 8 parts by volume is mixed to get base composition.Ureaformaldehyde 900g and ash 150g prepared by ureaformaldehyde preparation example of the present invention is added in every cubic metre of base composition.Mix.
It is below the application experiment report of seedling medium prepared by embodiment three.
Test and carry out in academy of agricultural sciences of Yantai City seedling cultivation greenhouse 3 ~ June in 2014.Supplying to study thing is tomato, and kind is L-402(Liaoning gardening seedling Co., Ltd).Setup Experiments 3 process, is respectively: process 1 (CK) traditional seedling matrix material peat composed of rotten mosses: vermiculite=2:1(volume ratio).Process 2 is traditional seedling matrix material peat composed of rotten mosses+urea 1000g/m
3.Process 3 is the seedling medium of slow-release nutrient seedling medium preparation example three of the present invention preparation.Repeat for 4 times, random arrangement.Adopt 72 holes (12*6 hole) black plastic point disk seedling growing.
Before sowing, each process every cubic metre of matrix adds 50% tpn 200 grams, and process 2 adds every cubic metre, urea 1000kg, fully mixes thoroughly, loads cave dish, and pressure cave, makes matrix lower than card 0.5 ~ 1cm.After vernalization, be sowed in the dish of cave, 1, every cave through the sterilization of 55 ~ 60 DEG C of Soaking in hot water for planting experimentally son, then reserve matrix with each process and evenly cover and kind to put down to card, water, put on seedling bed.Quantitative pouring clear water, to keep matrix moistening, other manages same conventional seedbed system.During tomato 5 ~ 6 true leaves, nursery terminates.
Treat that nursery terminates, measure the emergence rate often coiled, random sampling 5 strain is often coiled in each process, measure plant height (being as the criterion with the height of plug media surface to growing point), stem thick (near cotyledonary node bottom), overground part and underground part dry weight and fresh weight of plant seedlings, seedling vigorous index=(stem thick/plant height+root dry weight/ground dry weight) * complete stool dry weight.
Experimental result is in table 1.
Table 1 different substrates is on the impact of Growth of Tomato Seedling
As seen from Table 1, different disposal is different on the impact of Growth of Tomato Seedling.Each leaf emergence difference is little, does not add chemical fertilizer process growth of seedling index all remarkable in other process in matrix.Add Urea treatment overground part dry weight more greatly 744mg, but root dry weight is lower, significantly lower than ureaformaldehyde seedling medium, shows as excessive growth phenomenon.In general behave oneself best with ureaformaldehyde matrix of the present invention, its stem is thick, root dry weight, seedling vigorous index be all significantly higher than other process; In matrix, its seedling leaves of fertilizer treatment, stem stalk are not purplish red, define the rigid seedling only having 2 true leaves, significantly limit growth of seedling.
The present invention's turfy soil (peat composed of rotten mosses) used is a kind of commercial goods, buys in Lingshou County, Hebei province Min Cheng peat composed of rotten mosses Co., Ltd.The slag ash that the present invention is used and slag, for steam power plant's discarded object, main oxides consists of: silica, alundum (Al2O3), ferrous oxide, iron oxide, calcium oxide, titanium dioxide, magnesia, potassium oxide, sodium oxide molybdena, manganese oxide and phosphorus pentoxide, moisture less than 10%, content of beary metal is lower than 20% of farmland Heavy Metals in Sludge control criterion.
Claims (2)
1. a slow-release nutrient seedling medium, is characterized in that, first by the turfy soil of 50 ~ 60 parts by volume, and the thin vermiculite of 10 ~ 20 parts by volume, the perlite of 10 ~ 20 parts by volume, the slag ash of 5 ~ 10 parts by volume is mixed to get base composition; Then in every cubic metre of base composition, add ureaformaldehyde 800 ~ 1000g and ash 100 ~ 200g; Finally mix and obtain slow-release nutrient seedling medium.
2. slow-release nutrient seedling medium according to claim 1, is characterized in that described ureaformaldehyde is prepared from according to following steps:
1), 1m is added in a kettle.
3water, is heated to 70 ~ 80 DEG C, adds urea 700 ~ 900Kg, treats that urea dissolves in backward reactor and adds formaldehyde 0.7 ~ 0.9m
3, formaldehyde need add in 10 ~ 15 minutes;
2), add acid for adjusting pH value, when pH value reaches between 4.4 ~ 4.6, stop acid adding; When temperature rises to about 62 ~ 68 DEG C, throw in urea 150 ~ 250Kg, temperature controls at about 58 ~ 62 DEG C, and controls between 4.4 ~ 4.6 by pH value, reacts 30 ~ 90 minutes, adds adjusting PH with base value to about 8, cessation reaction;
3), by material squeeze into filter press, squeeze to ureaformaldehyde water content 20 ~ 30%, dry material obtains ureaformaldehyde through drying system drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410774643.1A CN104429860B (en) | 2014-12-16 | 2014-12-16 | A kind of slow-release nutrient seedling medium |
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| CN201410774643.1A CN104429860B (en) | 2014-12-16 | 2014-12-16 | A kind of slow-release nutrient seedling medium |
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| CN104429860A true CN104429860A (en) | 2015-03-25 |
| CN104429860B CN104429860B (en) | 2016-08-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105941006A (en) * | 2016-06-30 | 2016-09-21 | 浙江森禾种业股份有限公司 | Special culture substrate for machilus thunbergii container seedlings |
| CN110679430A (en) * | 2019-10-29 | 2020-01-14 | 金陵科技学院 | Special slow-release matrix for eggplant seedling culture and preparation method thereof |
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| CN101260008A (en) * | 2007-03-09 | 2008-09-10 | 汉枫缓释肥料（黑龙江）有限公司 | Method for preparing ureaformaldehyde |
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2014
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| CN101366356A (en) * | 2008-09-25 | 2009-02-18 | 浙江省亚热带作物研究所 | Complex interstitial substance for cyclobalanopsis glauca container raise seedling |
| RU2443721C1 (en) * | 2010-12-15 | 2012-02-27 | Открытое акционерное общество "МЕТАФРАКС" | Method of producing urea formaldehyde resin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105941006A (en) * | 2016-06-30 | 2016-09-21 | 浙江森禾种业股份有限公司 | Special culture substrate for machilus thunbergii container seedlings |
| CN110679430A (en) * | 2019-10-29 | 2020-01-14 | 金陵科技学院 | Special slow-release matrix for eggplant seedling culture and preparation method thereof |
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| CN104429860B (en) | 2016-08-31 |
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Denomination of invention: A kind of slow release nutrient seedling substrate Effective date of registration: 20201126 Granted publication date: 20160831 Pledgee: SINOAGRI HOLDING Co.,Ltd. Pledgor: WUZHOUFENG AGRICULTURAL SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2020980008490 |
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