CN103360150B - Special slow-release long-acting compound fertilizer for carrot and application method for same - Google Patents

Special slow-release long-acting compound fertilizer for carrot and application method for same Download PDF

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CN103360150B
CN103360150B CN201210082097.6A CN201210082097A CN103360150B CN 103360150 B CN103360150 B CN 103360150B CN 201210082097 A CN201210082097 A CN 201210082097A CN 103360150 B CN103360150 B CN 103360150B
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fertilizer
inhibitor
dauci sativae
radix dauci
long
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CN103360150A (en
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孙志梅
张阔
马文奇
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SHANDONG SANFANG CHEMICAL INDUSTRY GROUP Co.,Ltd.
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Hebei Agricultural University
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Abstract

The invention relates to a special slow-release long-acting compound fertilizer for carrot and an application method for the special slow-release long-acting compound fertilizer. The fertilizer is composed of active ingredients and auxiliary materials, wherein the active ingredients comprise, in parts by weight, 20-25 parts of nitrogen, 8-12 parts of phosphorus (P2O5), 14-18 parts of potassium (K2O), and an inhibitor with an addition amount which is 2-4% of the dosage of nitrogen in the compound fertilizer, wherein the inhibitor is a composite inhibitor composed of a urease inhibitor and a nitrification inhibitor at a weight ratio of 1: (2-5); the urease inhibitor is hydroquinone or N-butyl thiophosphoramide; and the nitrification inhibitor is dicyandiamide, 2-chloro-6-(trichloromethyl) pyridine, 2-amino-4-chloro-6-methyl pyridine, 3,4-dimethylpyrazole phosphate, 3,5-dimethylpyrazole or 3,5-dimethylpyrazole phosphate. The fertilizer is capable of meeting the needs of a whole growth period on nutrients by being applied once before carrot planting, high in yield, and excellent in quality.

Description

The slow release long-acting composite fertilizer that a kind of Radix Dauci Sativae is special and application process thereof
Technical field
The present invention relates to a kind of special fertilizer for carrot material and application process thereof, is special slow release long-acting compound fertilizer and the application process thereof of the conversion characteristic development in soil according to Radix Dauci Sativae nutrient demand characteristic and main mineral nutrient element specifically.
Background technology
Radix Dauci Sativae (Daucus carota) is umbelliferae Daucus biennial plant, is half winter hardiness vegetables, nutritious, have the good reputation of " Root of Glabrousleaf Asiabell ".According to statistics, China's growth of carrot area is close to 40% of the total cultivated area of world Radix Dauci Sativae, and ultimate production then accounts for 1/3 of Gross World Product, is the undisputed large Radix Dauci Sativae producing country of the first in the world.In recent years, the cultivated area of Radix Dauci Sativae and ultimate production are also increasing continuously and healthily.But since nineteen ninety-six, China's Radix Dauci Sativae unit yield starts obvious decline, at present even lower than world average level.Cause the reason of this kind of present situation to be many-sided, the unreasonable input of nutrient is then one of them importance.
For a long time, owing to market lacking the dedicated fertilizer being suitable for Radix Dauci Sativae nutrient demand characteristic, in addition vegetable grower generally lacks the cultivation management knowledge of science, blindly fertilising in production, excess fertilising phenomenon are very general, the unbalanced problem of soil nutrient caused after plantation for successive years, the physiological disease of Radix Dauci Sativae and pathologic disease problem are day by day serious, make to have in production rely on to use a large amount of agricultural chemicals control and alleviate, seriously constrain the Sustainable Healthy Development of Radix Dauci Sativae industry.And due to the unbalanced waste of using nutrients resource and the energy caused of fertilizer, even problem of environmental pollution, has also become the previous importance that can not be ignored of order.Based on this, according to nutrient demand characteristic and the conversion characteristic of main mineral nutrient element in soil of Radix Dauci Sativae, develop Radix Dauci Sativae with strong points special controlled release long-acting fertilizer significant.
Summary of the invention
The object of the present invention is to provide a kind of special slow release long-acting compound fertilizer and application process thereof of the conversion characteristic development in soil for Radix Dauci Sativae nutrient demand characteristic and main mineral nutrient element.
For achieving the above object, the technical solution adopted in the present invention is as follows:
The slow release long-acting composite fertilizer that a kind of Radix Dauci Sativae is special.This fertilizer is made up of effective constituent and auxiliary material, and wherein effective constituent nitrogen, phosphorus, potassium and inhibitor are counted by weight, comprises nitrogen 20-25 part, phosphorus 8-12 part, potassium 14-18 part, and the addition of inhibitor is the 2%-4% of Nitrogen Amount in Chemical Mixed Fertilizer.
Inhibitor in described Chemical Mixed Fertilizer is the composite inhibitor that urease inhibitor and nitrification inhibitor form by a certain percentage, and the weight ratio of the two is 1 ︰ 2-5.
Nitrogen in described Chemical Mixed Fertilizer, in pure N, derives from urea, sulphur ammonium, monoammonium phosphate, diammonium phosphate, or combination wherein.
In described Chemical Mixed Fertilizer, the significant quantity of phosphorus is with P 2o 5meter, raw material choose monoammonium phosphate, diammonium phosphate, or the combination of monoammonium phosphate (or diammonium phosphate) and calcium superphosphate (or coarse whiting).
In described Chemical Mixed Fertilizer, the significant quantity of potassium is with K 2o counts, raw material choose potassium sulfate.
Urease inhibitor in described Chemical Mixed Fertilizer is quinhydrones or N-NBPT, nitrification inhibitor is Dyhard RU 100,2-chloro-6-(trichloromethyl) pyridine, the chloro-6-methylpyrimidine of 2-amino-4-, 3,4-dimethyl pyrazole phosphoric acid salt, 3,5-dimethyl pyrazole or 3，5-dimethylpyrazole phosphoric acid salt.
The application process of described Chemical Mixed Fertilizer: Base-appling once 40-60kg/ mu before whole ground, better with organic fertilizer compounding application effect.
The preparation method of described Chemical Mixed Fertilizer: N P and K raw material, slow release long-acting agent (composite inhibitor of urease inhibitor and nitrification inhibitor), auxiliary material are mixed by a certain percentage, pulverize, granulation, again after drying, cool, sieving, produce the compounded fertilizer of granulated that particle diameter is 2-4mm, metering packing, makes Radix Dauci Sativae long-acting special compound fertilizer.In preparation process, the temperature of dryer more than 160 DEG C, in case Urea Transformation generates biuret, can not produce crop root when using and poisons.The good water content of attentional manipulation simultaneously, to prevent caking and sticky wall, improves returning charge rate, affects granulation outcome.
tool of the present invention has the following advantages:
1. scientific formulation is reasonable: the conversion characteristic development in soil for the nutrient demand characteristic of Radix Dauci Sativae and main mineral nutrient element of this fertilizer formula, N P and K reasonable ratio, according to soil fertility situation, 40-60kg is used on every mu of ground, can meet Radix Dauci Sativae time of infertility to the demand of nutrient.
2. fertilizer efficiency period is long: owing to adding the long-acting additive of regulation and control nitrogen transformation in this fertilizer, the fertilizer efficiency period of nitrogenous fertilizer obviously extends, disposable employedly can meet Radix Dauci Sativae time of infertility to the demand of nutrient, save the labour cost of topdressing, reduce labour intensity and agriculture production cost.
3. plant recovery of nutrient is high, and can alleviate the unreasonable pollution of using environment of nitrogenous fertilizer.Compared with common fertilizer, using of this fertilizer can make plant recovery of nutrient improve about 15%, obviously slows down the volatilization loss of ammonia and oxynitride, and leaching of nitrate loss, preserves the ecological environment.
4. fertilizer material wide material sources of the present invention, production cost is low, and production technique is simple, is easy to carry out large-scale production.Remaining without any in soil after using, is a kind of inexpensive environmental friendly fertilizer.
5. fertilizer of the present invention single fertilization before growth of carrot, can meet and grow to the needs of nutrient its all one's life, Folium Raphani look dark green, and output is high, and product are of fine quality, and plant recovery of nutrient is high.
embodiment:
Embodiment 1
A kind of Radix Dauci Sativae long-acting special compound is fertile, in one ton, counts by weight, comprises nitrogen 20 parts, phosphorus (P 2o 5) 8 parts, potassium (K 2o) 14 parts, total nutrient content 42%.The weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 3, and the consumption of composite inhibitor is 2% of Nitrogen Amount in Chemical Mixed Fertilizer.
Nitrogen part in described Chemical Mixed Fertilizer is provided by urea, part is provided by ammonium sulfate and monoammonium phosphate, phosphorus element to be provided by monoammonium phosphate and calcium superphosphate that (appropriate selects some Production of Single Superphosphate Chemical Mixed Fertilizers, play the effect of binding agent on the one hand, be conducive to granulation, on the other hand, containing a certain amount of calcium, magnesium, sulphur, silicon and trace element in calcium superphosphate), potassium element is provided by potassium sulfate.Urease inhibitor is quinhydrones, and nitrification inhibitor is 3，5-dimethylpyrazole.Auxiliary material selects attapulgite and fineness to be 100-200 object brown coal powder.
Each raw material weight used is as follows: 375.8kg urea, 50kg ammonium sulfate, 138.5kg monoammonium phosphate, 50kg calcium superphosphate are (containing P 2o 56%), 280kg potassium sulfate, 4kg composite inhibitor, 50kg attapulgite, 70kg brown coal powder.
First composite inhibitor and brown coal powder are fully mixed, then mix rear granulation, oven dry, screening according to corresponding ratio, metering packing to each raw material after other fragmentations, make Radix Dauci Sativae long-acting special compound fertilizer.This fertilizer is suitable on the higher soil of soil fertility, Base-appling once 50-60kg/ mu before whole ground.
Embodiment 2
A kind of Radix Dauci Sativae long-acting special compound is fertile, in one ton, counts by weight, comprises nitrogen 20 parts, phosphorus (P 2o 5) 12 parts, potassium (K 2o) 16 parts, total nutrient content 48%.The weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 3, and the consumption of composite inhibitor is 2% of Nitrogen Amount in Chemical Mixed Fertilizer.
In described Chemical Mixed Fertilizer, nitrogen part is provided by urea, and part is provided by monoammonium phosphate, and phosphorus element is provided by monoammonium phosphate, and potassium element is provided by potassium sulfate.Urease inhibitor is quinhydrones, and nitrification inhibitor is Dyhard RU 100, and auxiliary material is attapulgite or wilkinite.
Each raw material weight used is as follows: 374.6kg urea, 230.8kg monoammonium phosphate, 320kg potassium sulfate, 4kg composite inhibitor, 75kg attapulgite or wilkinite.
Above-mentioned raw materials is pressed the rear pulverizing of corresponding proportion mixing, granulation, oven dry, screening, then metering packing, obtain Radix Dauci Sativae long-acting special compound fertile.This fertilizer is suitable on the higher soil of Indigenous phosphorus and potassium supply capacity of s oil, Base-appling once 50kg/ mu before whole ground.
Embodiment 3
A kind of Radix Dauci Sativae long-acting special compound is fertile, in one ton, counts by weight, comprises nitrogen 23 parts, phosphorus (P 2o 5) 8 parts, potassium (K 2o) 14 parts, total nutrient content 45%.The weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 2.5, and the consumption of composite inhibitor is 2.5% of Nitrogen Amount in Chemical Mixed Fertilizer.
In described Chemical Mixed Fertilizer, nitrogen is provided by urea and monoammonium phosphate, and phosphorus element is provided by monoammonium phosphate, and potassium element is provided by potassium sulfate.Urease inhibitor is N-NBPT, and nitrification inhibitor is 3,4-dimethyl pyrazole phosphoric acid salt, and auxiliary material is wilkinite and fineness is 100-200 object weathering coal dust.
Each raw material weight used is as follows: 459.8kg urea, 153.8kg monoammonium phosphate, 280kg potassium sulfate, 5.8kg composite inhibitor, 50kg wilkinite, 55kg weathering coal dust.
First composite inhibitor and weathering coal dust are fully mixed, then mix rear granulation, oven dry, screening according to corresponding ratio, metering packing to each raw material after other fragmentations, make Radix Dauci Sativae long-acting special compound fertilizer.This fertilizer is suitable on the higher soil of soil phosphorus content level, Base-appling once 50-60kg/ mu before whole ground.
Embodiment 4
The long-acting compound fertilizer that Radix Dauci Sativae is special, in one ton, counts by weight, comprises nitrogen 20 parts, phosphorus (P 2o 5) 8 parts, potassium (K 2o) 18 parts, total nutrient content 46%.The weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 3, and the consumption of composite inhibitor is 2.5% of Nitrogen Amount in Chemical Mixed Fertilizer.
In described Chemical Mixed Fertilizer, nitrogen is provided by urea and diammonium phosphate, and phosphorus element is provided by the coarse whiting of diammonium phosphate and 50% content, and potassium element is provided by potassium sulfate.Urease inhibitor is N-NBPT, and nitrification inhibitor is the chloro-6-(trichloromethyl of 2-) pyridine, auxiliary material is attapulgite and smashing fineness is 100-200 object peat dust.
Each raw material weight used is as follows: 388.0kg urea, 119.6kg diammonium phosphate, 50kg coarse whiting, 360kg potassium sulfate, 5.0 kg composite inhibitors, 50kg attapulgite, 30kg peat dust.
First composite inhibitor and peat dust are fully mixed, then mix rear granulation, oven dry, screening according to corresponding ratio, metering packing to each raw material after other fragmentations, make Radix Dauci Sativae long-acting special compound fertilizer.It is higher and on the soil that potassium content level is lower that this fertilizer is suitable for soil nitrogen phosphorus contents level, Base-appling once 50-60kg/ mu before whole ground.
Embodiment 5
The long-acting compound fertilizer that Radix Dauci Sativae is special, in one ton, counts by weight, comprises nitrogen 24 parts, phosphorus (P 2o 5) 8 parts, potassium (K 2o) 14 parts, total nutrient content is 46%.The weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 2.5, and the consumption of composite inhibitor is 3% of Nitrogen Amount in Chemical Mixed Fertilizer.
Sources of nitrogen in described Chemical Mixed Fertilizer is in urea and monoammonium phosphate, and phosphorus element is all provided by monoammonium phosphate, and potassium element is provided by potassium sulfate.Urease inhibitor is quinhydrones, and nitrification inhibitor is the chloro-6-(trichloromethyl of 2-) pyridine, auxiliary material is diatomite and smashing fineness is 100-200 object brown coal powder.
Raw materials used weight is as follows: 481.6kg urea, 153.8kg monoammonium phosphate, 280kg potassium sulfate, 7.2 kg composite inhibitors, 50kg diatomite, 30kg brown coal powder.
First composite inhibitor and brown coal powder are fully mixed, then mix rear granulation, oven dry, screening according to corresponding ratio, metering packing to each raw material after other fragmentations, make Radix Dauci Sativae long-acting special compound fertilizer.It is higher and on the soil that nitrogen content level is lower that this fertilizer is suitable for soil phosphorus potassium content level, before whole ground about Base-appling once 50kg/ mu.
Embodiment 6
The long-acting compound fertilizer that Radix Dauci Sativae is special, in one ton, counts by weight, comprises nitrogen 22 parts, phosphorus (P 2o 5) 10 parts, potassium (K 2o) 16 parts, total nutrient content is 48%.The weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 3, and the consumption of composite inhibitor is 4.0% of Nitrogen Amount in Chemical Mixed Fertilizer.
Sources of nitrogen in described Chemical Mixed Fertilizer is in urea and monoammonium phosphate, and phosphorus element is all provided by monoammonium phosphate, and potassium element is provided by potassium sulfate.Urease inhibitor is quinhydrones, and nitrification inhibitor is Dyhard RU 100, and auxiliary material is diatomite.
Raw materials used weight is as follows: 428.1kg urea, 192.3kg monoammonium phosphate, 320kg potassium sulfate, 8.8 kg composite inhibitors, 55kg diatomite.
Each raw material after fragmentation is mixed rear granulation, oven dry, screening according to corresponding ratio, metering packing, makes Radix Dauci Sativae long-acting special compound fertilizer.This fertilizer is suitable for the soil of medium fertility level, Base-appling once 50-60kg/ mu before whole ground.
Embodiment 7
The long-acting compound fertilizer that Radix Dauci Sativae is special, in one ton, counts by weight, comprises nitrogen 22 parts, phosphorus (P 2o 5) 8 parts, potassium (K 2o) 15 parts, total nutrient content is 45%.The weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 3, and composite inhibitor consumption is 3% of Nitrogen Amount in Chemical Mixed Fertilizer.
Sources of nitrogen in described Chemical Mixed Fertilizer is in urea and diammonium phosphate, and phosphorus element is provided by diammonium phosphate and calcium superphosphate, and potassium element is provided by potassium sulfate.Urease inhibitor is quinhydrones, and nitrification inhibitor is the chloro-6-methylpyrimidine of 2-amino-4-, and auxiliary material is diatomite and smashing fineness is 100-200 object peat dust.
Raw materials used weight is as follows: 417.0kg urea, 156.5kg diammonium phosphate, 50kg calcium superphosphate (content 16%), 300kg potassium sulfate, 6.6 kg composite inhibitors, 50kg diatomite, 30kg weathering coal dust.
First composite inhibitor and weathering coal dust are fully mixed, and then mix rear granulation, oven dry, screening according to corresponding ratio, metering packing to each raw material after fragmentation, make Radix Dauci Sativae long-acting special compound fertilizer.It is higher that this fertilizer is suitable for organic content, on the soil that Phosphorus-supplying Level is also higher, and Base-appling once 40-50kg/ mu before whole ground.
Embodiment 8
The long-acting compound fertilizer that Radix Dauci Sativae is special, in one ton, counts by weight, comprises nitrogen 25 parts, phosphorus (P 2o 5) 9 parts, potassium (K 2o) 14 parts, total nutrient content is 48%.The weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 3, and the consumption of composite inhibitor is 4% of Nitrogen Amount in Chemical Mixed Fertilizer.
Sources of nitrogen in described Chemical Mixed Fertilizer is in urea and monoammonium phosphate, and phosphorus element is provided by monoammonium phosphate, and potassium element is provided by potassium sulfate.Urease inhibitor is N-NBPT, and nitrification inhibitor is the chloro-6-(trichloromethyl of 2-) pyridine, auxiliary material is attapulgite.
Raw materials used weight is as follows: 498.3kg urea, 173.1kg monoammonium phosphate, 280kg potassium sulfate, 10 kg composite inhibitors, 44kg attapulgite.
Each raw material after fragmentation is mixed rear granulation, oven dry, screening according to corresponding ratio, metering packing, makes Radix Dauci Sativae long-acting special compound fertilizer.It is higher that this fertilizer is suitable for phosphorus potassium level, and supply the soil that nitrogen level is lower, Base-appling once 50kg/ mu before whole ground.
Embodiment 9
The long-acting compound fertilizer that Radix Dauci Sativae is special, in one ton, counts by weight, comprises nitrogen 21 parts, phosphorus (P 2o 5) 9 parts, potassium (K 2o) 18 parts, total nutrient content is 48%.The consumption of inhibitor is 2.5% of Nitrogen Amount in Chemical Mixed Fertilizer, and the weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 4.
Sources of nitrogen in described Chemical Mixed Fertilizer is in urea and monoammonium phosphate, and phosphorus usually comes from monoammonium phosphate; Potassium usually comes from potassium sulfate; Urease inhibitor is N-NBPT, and nitrification inhibitor is 3，5-dimethylpyrazole phosphoric acid salt, and auxiliary material is attapulgite.
Raw materials used weight is as follows: 411.4kg urea, 173.1kg monoammonium phosphate, 360kg potassium sulfate, 5.3 kg composite inhibitors, 55kg attapulgite.
Each raw material after fragmentation is mixed rear granulation, oven dry, screening according to corresponding ratio, metering packing, makes Radix Dauci Sativae long-acting special compound fertilizer.It is higher that this fertilizer is suitable for nitrogen phosphorus level, and the soil that potassium supply level is lower, Base-appling once 50-60 kg/mu before whole ground.
Embodiment 10
The long-acting compound fertilizer that Radix Dauci Sativae is special, in one ton, counts by weight, comprises nitrogen 20 parts, phosphorus (P 2o 5) 11 parts, potassium (K 2o) 14 parts, total nutrient content is 45%.The consumption of inhibitor is 2% of Nitrogen Amount in Chemical Mixed Fertilizer, and the weight ratio of urease inhibitor and nitrification inhibitor is 1 ︰ 4.
Sources of nitrogen in described Chemical Mixed Fertilizer is in urea and monoammonium phosphate, and phosphorus usually comes from monoammonium phosphate and calcium superphosphate; Potassium usually comes from potassium sulfate; Urease inhibitor is N-NBPT, and nitrification inhibitor is 3，5-dimethylpyrazole phosphoric acid salt, and auxiliary material is attapulgite and smashing fineness is 100-200 object weathering coal dust.
Raw materials used weight is as follows: 383.7kg urea, 196.2kg monoammonium phosphate, 50.0kg calcium superphosphate, 280kg potassium sulfate, 4 kg composite inhibitors, 50.0kg attapulgite, 40kg fineness are 100-200 object weathering coal dust.
First composite inhibitor and weathering coal dust are fully mixed, then mix rear granulation, oven dry, screening according to corresponding ratio, metering packing to each raw material after other fragmentations, make Radix Dauci Sativae long-acting special compound fertilizer.It is higher and on the soil that phosphorus content level is lower that this fertilizer is suitable for Soil Nitrogen potassium content level, Base-appling once 50-60kg/ mu before whole ground.
Application examples 1
The fertile effect test on Radix Dauci Sativae of Radix Dauci Sativae long-acting special compound, process 1 is peasant's Routine Management field (Common compound fertilizer is made base manure+fleshy root expanding stage and imposed urea); Process 2 is the radish long-acting special compound fertilizer prepared by embodiment 1, and 60kg/ mu is disposable in time planting whole ground before Radix Dauci Sativae to be applied.Basic physicochemical character is experimental field in table 1, and be large plate red ginseng 6 cun for examination carrot variety, main result is in table 2.Can find out, when saving is once topdressed, the output of Radix Dauci Sativae also slightly increases.
Table 1 is basic physicochemical character experimental field
Radix Dauci Sativae output when table 2 is gathered in the crops
Process Radix Dauci Sativae output (kg/ mu) (%) is increased than contrast
Peasant's Routine Management field (contrast) 4185.4 —
The fertile experimental plot of long-acting special 4335.7 3.6
Application examples 2
The fertile effect test on Radix Dauci Sativae of Radix Dauci Sativae long-acting special compound, process 1 for peasant's Routine Management field (Common compound fertilizer do base manure+fleshy root expand impose urea early stage) in contrast; Process 2 is the Radix Dauci Sativae long-acting special compound fertilizer prepared by embodiment 2, and 40kg/ mu is disposable in time planting whole ground before Radix Dauci Sativae to be applied.Basic physicochemical character is experimental field in table 3, and be large plate red ginseng 6 cun for examination carrot variety, main result is in table 4.Can find out, with use common fertilizer, compare in the peasant's Routine Management field adopting base to chase after combination, and the Radix Dauci Sativae output increased in special slow release long-acting fertilizer experimental plot 12.5%, utilization rate of nitrogen fertilizer improves 34.56%.
Table 3 is basic physicochemical character experimental field
Soil type Alkali-hydrolyzable nitrogen (mg/kg) Rapid available phosphorus (mg/kg) Available potassium (mg/kg)
Sandy loam 84.47 15.24 85.17
Main result when table 4 is gathered in the crops
Application examples 3
The fertile effect test on Radix Dauci Sativae of Radix Dauci Sativae long-acting special compound, process 1 is peasant's Routine Management field (Common compound fertilizer do base manure+fleshy root expand impose urea early stage); Process 2 is the Radix Dauci Sativae long-acting special compound fertilizer prepared by embodiment 4, and 50kg/ mu is disposable in time planting whole ground before Radix Dauci Sativae to be applied.Basic physicochemical character is experimental field in table 5, and be large plate red ginseng 6 cun for examination carrot variety, main result is in table 6.Can find out, saving under the prerequisite of once topdressing, the output of Radix Dauci Sativae still improves 15.9%
Table 5 is basic physicochemical character experimental field
Main result when table 6 is gathered in the crops
Process Radix Dauci Sativae output (kg/ha) (%) is increased than contrast
Peasant's Routine Management field (contrast) 4400.2 —
The fertile experimental plot of long-acting special 5100.3 15.9

Claims (6)

1. the long-acting compound fertilizer that Radix Dauci Sativae is special, is characterized in that: this fertilizer is made up of effective constituent and auxiliary material, and wherein effective constituent nitrogen, phosphorus, potassium are counted by weight, comprises nitrogen 20-25 part, phosphorus 8-12 part, potassium 14-18 part; Inhibitor is the composite inhibitor of urease inhibitor and nitrification inhibitor composition, and the weight ratio of the two is 1 ︰ 2-5, and the addition of composite inhibitor counts the 2%-4% of pure nitrogen level in Chemical Mixed Fertilizer by weight; Any one in peat, brown coal, weathered coal, attapulgite, diatomite or wilkinite selected by auxiliary material used.
2. according to the long-acting compound fertilizer that Radix Dauci Sativae according to claim 1 is special, it is characterized in that: the nitrogen in described composite fertilizer is in pure N, and raw material is selected from urea, sulphur ammonium, or the two and monoammonium phosphate, diammonium phosphate combination.
3. according to the long-acting compound fertilizer that Radix Dauci Sativae according to claim 1 is special, it is characterized in that: the phosphorus element in described composite fertilizer is with P 2o 5meter, raw material is selected from monoammonium phosphate, diammonium phosphate; Or the combination of monoammonium phosphate and calcium superphosphate or coarse whiting; Or the combination of diammonium phosphate and calcium superphosphate or coarse whiting.
4. according to the long-acting compound fertilizer that Radix Dauci Sativae according to claim 1 is special, it is characterized in that: the potassium element in described composite fertilizer is with K 2o counts, and raw material is selected from potassium sulfate.
5. according to the long-acting compound fertilizer that Radix Dauci Sativae according to claim 1 is special, it is characterized in that: the urease inhibitor in described composite fertilizer is quinhydrones or N-NBPT, nitrification inhibitor is Dyhard RU 100, the chloro-6-of 2-(trichloromethyl) pyridine, the chloro-6-methylpyrimidine of 2-amino-4-, 3,4-dimethyl pyrazole phosphoric acid salt, 3,5-dimethyl pyrazole or 3，5-dimethylpyrazole phosphoric acid salt.
6. according to the long-acting compound fertilizer that Radix Dauci Sativae described in claim 1 is special, it is characterized in that: described composite fertilizer is Base-appling once 40-60kg/ mu before whole ground.
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CN114890844A (en) * 2022-05-23 2022-08-12 甘肃省农业科学院土壤肥料与节水农业研究所 Corn nitrogen slow-release organic-inorganic compound fertilizer and application thereof

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CN101417905A (en) * 2007-10-24 2009-04-29 中国科学院沈阳应用生态研究所 Applications of long acting complex fertilizer in Nanguo pear cultivation
CN101696138A (en) * 2009-09-25 2010-04-21 广东新大地生物科技股份有限公司 Long-acting special fertilizer for oil-tea camellia and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1580009A (en) * 2003-08-14 2005-02-16 朱秉贤 Special long-lasting fertilizer for crops
CN101417905A (en) * 2007-10-24 2009-04-29 中国科学院沈阳应用生态研究所 Applications of long acting complex fertilizer in Nanguo pear cultivation
CN101696138A (en) * 2009-09-25 2010-04-21 广东新大地生物科技股份有限公司 Long-acting special fertilizer for oil-tea camellia and preparation method thereof

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