CN105294288A - Efficient slow-release fertilizer for Salicornia europaea on beach saline-alkali land and preparation method thereof - Google Patents

Abstract

The invention belongs to the field of slow-release fertilizer, and specifically discloses an efficient slow-release fertilizer for Salicornia europaea on beach saline-alkali land. The fertilizer is characterized by including the following components by weight: cyclodextrin oxalate, activated clay, micron hollow glass cellulose powder, mesoporous silica nanoparticles, medical stone silicate, compound amino acid solution, fulvic acid, polypeptide metalloenzyme, ferrous sulfate, biological bacteria, rice husk carbon micropowder, slag, bagasse, vinegar residue, furfural residue, tetracycline mushroom residue, xanthan gum, gypsum powder, sodium dodecyl benzene sulfonate, and a proper amount of water. The invention uses cyclodextrin oxalate and activated clay as a basic coating material; and materials in different sizes including hollow glass cellulose powder, mesoporous silica nanoparticles and gypsum powder are added in the coating material, so as to enrich the pore size, adsorption, acid and alkali resistance of the coating material, and improve the regulation of fertilizer efficiency and fertility. The efficient slow-release fertilizer can promote the efficient cultivation of Salicornia europaea, and achieve efficient cultivation by combination with the main materials.

Description

The high-efficiency sustained-release fertilizer of a kind of beach saline-alkali soil Salicornia Bigelovii Torr. and preparation method

Technical field

The invention belongs to slow release fertilizer field, be specifically related to high-efficiency sustained-release fertilizer and the preparation method of a kind of beach saline-alkali soil Salicornia Bigelovii Torr..

Background technology

Film-coated and slow release fertilizer has the effect significantly improving utilization rate of fertilizer.But, the most slow-release fertilizers sold in the market are faced with problems, such as: 1, coated fertilizer adopts the non-degradable high molecular polymer of chemosynthesis, and these refractory organics polymer coated fertilizers very easily remain in agricultural soil and cause Soil degradation and serious pollution; 2, coated fertilizer adopts natural polymer degradation material, but slow-release fertilizer selling at exorbitant prices on the one hand prepared by these natural high molecular degradable materials, controlled-release effect is bad on the other hand, along with the degraded of natural macromolecular material can rapid releasing nutrients composition, cause the slow-release fertilizer cycle short, range of application is narrow; 3, existing film-coated and slow release fertilizer can not realize the two-ways regulation of controlled release and slowly-releasing, can not realize the supply of chemical fertilizer Middle nutrition element and crop to the demand basic synchronization of nutrient by dog, can not realize running balance; 4, present slow-release fertilizer is too single to the consideration of external natural condition, for different edatopes, such as paddy field and dry land, acid soil and salt affected soil, high temperature soil and freezing soil etc. do not take into full account, do not consider the water tolerance of coating material, crushing resistance, photosensitivity, pH irritability etc.; 5, the function of existing coating material is more single, usually just sustained-release and controlled release, gives the functions such as coating material water-absorbing-retaining function, antibacterial, deinsectization, weeding, is significant to the development of coating material; 6, production efficiency, service efficiency, the low cost of dressing control release controlled fertilizer will be considered.For release-controlled coated fertilizer Problems existing, efficient, cheap, multi-functional and environmentally friendly coated fertilizer research and development become the prior development direction of domestic and international coated slow release fertilizer research and production application.

Coastal beach soil belongs to marine solonchak type, due to the impact for a long time by oceanic tide, salinification effect causes that soil salt content is higher, the soil body grow not obvious, physicochemical character is poor, fertility level is low, and beach area is also with certain speed increment, simultaneously arable area successively decrease year by year and the something lost day by day of Freshwater resources weary, the exploitation of coastal saline soil more and more receive the concern of people.Beach salt realize on the ground this existing ornamental value of Salicornia Bigelovii Torr. have not only edibleness can dry culture but also can be flooded the Efficient Cultivation of crop of cultivating, significant to the Efficient Development realized based on coastal saline soil ground.

The fertilizer efficiency of slow release fertilizer depends on slow-release material, capsule form, market common are and adopt identical or different coated fertilizer realize layering coating and then realize slowly-releasing regulation and control, but can increase material cost and cost of manufacture like this.

Two channels coated fertilizer is built in nanochannel and microchannel, the structure of microchannel and nanochannel can be absorbed and used the space composition caused by means of the structure of material itself and micron/nano material, simply be easy to realize, give slow release fertilizer new function, for the development of slow release fertilizer opens new way simultaneously.

Summary of the invention

The present invention is directed to the Efficient Cultivation demand of beach saline land Salicornia Bigelovii Torr., propose high-efficiency sustained-release fertilizer and the preparation method of a kind of beach saline-alkali soil Salicornia Bigelovii Torr..

The technical solution used in the present invention is as follows:

The high-efficiency sustained-release fertilizer of a kind of beach saline-alkali soil Salicornia Bigelovii Torr., it is characterized in that, comprise following parts by weight of component: oxalic acid cyclodextrin 25-27, activated clay 25-27, micron hollow glass fibre element powder 4.6-4.8, the sub-4.6-4.8 of mesoporous silicon dioxide nano particle, medical stone silicate 5-6, Moriamin S 3.2-3.4, fulvic acid 2.1-2.3, polypeptide metalloenzyme 1.9-2.1, ferrous sulfate 0.9-1.1, biological bacteria 0.8-1, rice husk micropowder 3-3.2, slag 40-42, bagasse 36-38, vinegar grain 32-34, furfural dregs 28-30, tetracycline bacterial dreg 26-28, xanthan gum 0.8-1, terra alba 2.5-2.6, Sodium dodecylbenzene sulfonate 2-3, appropriate water.

A high-efficiency sustained-release method for preparing fertilizer for beach saline-alkali soil Salicornia Bigelovii Torr., is characterized in that, comprise the following steps:

(1) by medical stone silicate, activated clay mixing, put into muffle furnace at 150 DEG C of heated and stirred 30-40min, ball milling crosses 100 orders afterwards, obtains composite powder for subsequent use; By oxalic acid cyclodextrin, composite powder, Sodium dodecylbenzene sulfonate and gross weight 2.2-2.4 water mixing doubly, and at 180-190 DEG C stirring reaction 30-32min, be cooled to 110-120 DEG C afterwards, add terra alba stirring reaction 25-27min, stop heating, and adding micron hollow glass fibre element powder, mesoporous silicon dioxide nano particle simultaneously, rapid stirring 4-5min, to evenly, must have twin-channel coated fertilizer for subsequent use;

(2) by Moriamin S, fulvic acid, polypeptide metalloenzyme, ferrous sulfate, biological bacteria and gross weight 2-3 water mixing and stirring doubly, add rice husk micropowder, homogeneous stir process 15-20min, employing spray drying technology is dry that nutritive powder is for subsequent use;

(3) by slag, bagasse, vinegar grain, furfural dregs, tetracycline bacterial dreg hybrid composting 36-40d, put into pulverizer afterwards and pulverize 20-30min, cross 300 order steel sieves, obtain major ingredient powder, major ingredient powder and nutritive powder mixing are put into the stirrer of top with shower nozzle, stir 15-16min to even, first evenly sprayed into 5 times of water diluting solns of xanthan gum by shower nozzle in whipping process, centrifuge dehydration dehydration is adopted to be 35% of gross weight to moisture content afterwards, there is twin-channel coated fertilizer evenly being sprayed into by shower nozzle, form the wet stock with coated fertilizer;

(4) wet stock with coated fertilizer is sent into the roller pelletizer with calorifier; setting speed 380-390r/min; temperature 86-90 DEG C; granulation 46-50min; cross 50 order steel sieves, obtain spherical fertilizer, this spherical fertilizer is first used the freezing 20-22min of low temperature-3 DEG C; 100 DEG C are progressively warming up to, with 1 DEG C/min heating mode baking 40min to doing and get final product employing 60 DEG C.

Beneficial effect of the present invention is embodied in:

The present invention adopts oxalic acid cyclodextrin and activated clay as basic coated fertilizer; the material of the different sizes such as hollow glass fibre element powder, mesoporous silicon dioxide nano particle and terra alba is added in coated fertilizer; the pore dimension of coated fertilizer, adsorptivity, resistance to acids and bases are enriched; improve control and the fertility of fertilizer efficiency; the Efficient Cultivation of Salicornia Bigelovii Torr. can be promoted; the protection of beach saline land being cultivated to Salicornia Bigelovii Torr. root cell can be realized simultaneously; promote its absorbing different nutriments in environment, realize its Efficient Cultivation.The degradable oxalic acid cyclodextrin adopted coordinates activated clay, hollow glass fibre element powder, mesoporous silicon dioxide nano particle and terra alba jointly to prepare two channels slow-release fertilizer coating membrance material, improve coating membrance material at the nutriment release characteristics in beach saline-alkali ground, extend the degradation time of coating membrance material, maintain fertility.

Embodiment

Embodiment

The high-efficiency sustained-release fertilizer of the beach saline-alkali soil Salicornia Bigelovii Torr. described in the present embodiment, it is characterized in that, comprise following parts by weight of component: oxalic acid cyclodextrin 26, activated clay 26, micron hollow glass fibre element powder 4.7, mesoporous silicon dioxide nano particle 4.7, medical stone silicate 5.5, Moriamin S 3.3, fulvic acid 2.2, polypeptide metalloenzyme 2, ferrous sulfate 1, biological bacteria 0.9, rice husk micropowder 3.1, slag 41, bagasse 37, vinegar grain 33, furfural dregs 29, tetracycline bacterial dreg 27, xanthan gum 0.9, terra alba 2.55, Sodium dodecylbenzene sulfonate 2.5, appropriate water.

The high-efficiency sustained-release method for preparing fertilizer of the beach saline-alkali soil Salicornia Bigelovii Torr. described in the present embodiment, is characterized in that, comprise the following steps:

(1) by medical stone silicate, activated clay mixing, put into muffle furnace at 150 DEG C of heated and stirred 35min, ball milling crosses 100 orders afterwards, obtains composite powder for subsequent use; The water of oxalic acid cyclodextrin, composite powder, Sodium dodecylbenzene sulfonate and gross weight 2.3 times is mixed, and at 185 DEG C stirring reaction 31min, be cooled to 115 DEG C afterwards, add terra alba stirring reaction 26min, stop heating, and adding micron hollow glass fibre element powder, mesoporous silicon dioxide nano particle simultaneously, rapid stirring 4.5min, to evenly, must have twin-channel coated fertilizer for subsequent use;

(2) by the water mixing and stirring of Moriamin S, fulvic acid, polypeptide metalloenzyme, ferrous sulfate, biological bacteria and gross weight 2.5 times, add rice husk micropowder, homogeneous stir process 17.5min, employing spray drying technology is dry that nutritive powder is for subsequent use;

(3) by slag, bagasse, vinegar grain, furfural dregs, tetracycline bacterial dreg hybrid composting 38d, put into pulverizer afterwards and pulverize 25min, cross 300 order steel sieves, obtain major ingredient powder, major ingredient powder and nutritive powder mixing are put into the stirrer of top with shower nozzle, stir 15.5min to even, first evenly sprayed into 5 times of water diluting solns of xanthan gum by shower nozzle in whipping process, centrifuge dehydration dehydration is adopted to be 35% of gross weight to moisture content afterwards, there is twin-channel coated fertilizer evenly being sprayed into by shower nozzle, form the wet stock with coated fertilizer;

(4) wet stock with coated fertilizer is sent into the roller pelletizer with calorifier; setting speed 385r/min; temperature 88 DEG C; granulation 48min; cross 50 order steel sieves, obtain spherical fertilizer, this spherical fertilizer is first used the freezing 21min of low temperature-3 DEG C; 100 DEG C are progressively warming up to, with 1 DEG C/min heating mode baking 40min to doing and get final product employing 60 DEG C.

Get two parts 1 mu beach saline-alkali soil Salicornia Bigelovii Torr. respectively as experimental group and control group, experimental group every mu Salicornia Bigelovii Torr. executes fertilizer 30Kg of the present invention, control group does not process, other cultivation condition is consistent, find, experimental group Salicornia Bigelovii Torr. is better than control group Salicornia Bigelovii Torr. growing way, finally gathers in and takes Salicornia Bigelovii Torr. weight in wet base, finds that experimental group Salicornia Bigelovii Torr. weight in wet base is 1.568 times of control group Salicornia Bigelovii Torr. weight in wet base.

Claims (2)

1. the high-efficiency sustained-release fertilizer of a beach saline-alkali soil Salicornia Bigelovii Torr., it is characterized in that, comprise following parts by weight of component: oxalic acid cyclodextrin 25-27, activated clay 25-27, micron hollow glass fibre element powder 4.6-4.8, the sub-4.6-4.8 of mesoporous silicon dioxide nano particle, medical stone silicate 5-6, Moriamin S 3.2-3.4, fulvic acid 2.1-2.3, polypeptide metalloenzyme 1.9-2.1, ferrous sulfate 0.9-1.1, biological bacteria 0.8-1, rice husk micropowder 3-3.2, slag 40-42, bagasse 36-38, vinegar grain 32-34, furfural dregs 28-30, tetracycline bacterial dreg 26-28, xanthan gum 0.8-1, terra alba 2.5-2.6, Sodium dodecylbenzene sulfonate 2-3, appropriate water.

2. the high-efficiency sustained-release method for preparing fertilizer of a kind of beach saline-alkali soil as claimed in claim 1 Salicornia Bigelovii Torr., is characterized in that, comprise the following steps:

(1) by medical stone silicate, activated clay mixing, put into muffle furnace at 150 DEG C of heated and stirred 30-40min, ball milling crosses 100 orders afterwards, obtains composite powder for subsequent use; By oxalic acid cyclodextrin, composite powder, Sodium dodecylbenzene sulfonate and gross weight 2.2-2.4 water mixing doubly, and at 180-190 DEG C stirring reaction 30-32min, be cooled to 110-120 DEG C afterwards, add terra alba stirring reaction 25-27min, stop heating, and adding micron hollow glass fibre element powder, mesoporous silicon dioxide nano particle simultaneously, rapid stirring 4-5min, to evenly, must have twin-channel coated fertilizer for subsequent use;

(2) by Moriamin S, fulvic acid, polypeptide metalloenzyme, ferrous sulfate, biological bacteria and gross weight 2-3 water mixing and stirring doubly, add rice husk micropowder, homogeneous stir process 15-20min, employing spray drying technology is dry that nutritive powder is for subsequent use;

(3) by slag, bagasse, vinegar grain, furfural dregs, tetracycline bacterial dreg hybrid composting 36-40d, put into pulverizer afterwards and pulverize 20-30min, cross 300 order steel sieves, obtain major ingredient powder, major ingredient powder and nutritive powder mixing are put into the stirrer of top with shower nozzle, stir 15-16min to even, first evenly sprayed into 5 times of water diluting solns of xanthan gum by shower nozzle in whipping process, centrifuge dehydration dehydration is adopted to be 35% of gross weight to moisture content afterwards, there is twin-channel coated fertilizer evenly being sprayed into by shower nozzle, form the wet stock with coated fertilizer;

(4) wet stock with coated fertilizer is sent into the roller pelletizer with calorifier; setting speed 380-390r/min; temperature 86-90 DEG C; granulation 46-50min; cross 50 order steel sieves, obtain spherical fertilizer, this spherical fertilizer is first used the freezing 20-22min of low temperature-3 DEG C; 100 DEG C are progressively warming up to, with 1 DEG C/min heating mode baking 40min to doing and get final product employing 60 DEG C.