CN105315097A - Method for preparing biological nutrient enrichment fertilizer - Google Patents
Method for preparing biological nutrient enrichment fertilizer Download PDFInfo
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- CN105315097A CN105315097A CN201510105433.8A CN201510105433A CN105315097A CN 105315097 A CN105315097 A CN 105315097A CN 201510105433 A CN201510105433 A CN 201510105433A CN 105315097 A CN105315097 A CN 105315097A
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Abstract
The invention belongs to the field of fertilizer preparation and particularly relates to a method for preparing a biological nutrient enrichment fertilizer. The preparation method mainly includes the following steps that firstly, palygorskite raw ore is smashed to obtain palygorskite powder, then water is added and stirred so that the palygorskite powder and water can be fully mixed, and pulp containing palygorskite is prepared; then, the pulp is led into a solid-liquid hydrocyclone separation device for separation and extraction, pulp of an overflow port is obtained and dehydrated and dried, and a PAL material is prepared; secondly, the PAL material prepared in the first step is mixed with nitrogen, phosphorus and potash fertilizer and organic matter, and the biological nutrient enrichment fertilizer is prepared through remixing, stirring, granulation, baking, cooling and packaging. The biological nutrient enrichment fertilizer prepared through the method can increase the yield of agricultural products, increase the content of microelements in the agricultural products, improve the soil nutrition environment, improve the soil health level and meet the requirement for ecological environmental protection.
Description
Technical field
The invention belongs to fertilizer preparation field, especially a kind of method preparing the strengthening of the biological nutrition containing the PAL material fertilizer that can realize supplementing soil and farm crop essential trace element.
Background technology
Biological nutrition strengthening refers to the strengthening process carrying out the micro elements needed by human such as nutrition and the health-promoting factor in growing process, is the one preferred technique means that agricultural and nutrition department tackle nutrient imbalance problem.Biological nutrition intensifying technology is a kind of emerging, promising theoretical method, can realize agricultural-food by this method and quantitatively be rich in some nutrient substance or functional substance, reach the object of nutrient laden and functionalization.
The low caused health problem of absorption of Trace Elements in Soil skewness and crop has become the main public health problem of modern society.Being carried out the biological nutrition strengthening of agricultural-food by fertilising, when not changing farm crop genomic constitution, the trophic level of farm crop can be increased, with the disappearance of balanced soil essential trace element.
Essential trace element nutrition unbalance, has become global Health risk.Some countries and regions implement the means of carrying out trace element interpolation and nutritional fortification in the diet.But take what mode the most effectively and sustainably can control trace element deficiency, this is the problem of international community's long felt.Scientific research and practical experience display, food-balance method is that a kind of popularity essential trace element that solves lacks most economical, the effective and continuable method of problem.Because food-balance method has with low cost, that technique simply, does not need to change people food habits, can cover the advantages such as many people.
Agricultural-food are main sources of conventional food and nutrition, but the Ministry of Agriculture is safeguarding that human health is as target, and the Ministry of Health is not also using the powerful of agricultural as an antagonism nutrient imbalance relative disease, thus current agrotechnique and agricultural policy is made to become one of unbalance basic reason of agricultural-food essential trace element.Therefore, the fundamental way of food-balance method, is the strengthening of the essential trace element of agricultural-food.The nutritional fortification of agricultural-food to increasing the biological effectiveness of the current essential trace element (as iodine, selenium, zinc, iron etc.) still lacked and improving farm crop, with the nutrition of soil, there is very important effect, to essential trace element improving food quality, improve in HUMAN HEALTH etc. and also have very important significance.
The enhancing of raising and the back to nature theory day by day that require along with level of human health, more urgent to the demand of green product and friendly environment, the health pursuing the safety of agricultural-food, high-quality and agricultural environment has become problem in science urgently to be resolved hurrily.Reduce the amount of executing of chemical fertilizer, improve chemical fertilizer utilization ratio, strengthen agriculture environmental protection and focus on the reparation of impaired environment having become the focal issue that international community pays close attention to jointly.The effective way solved realizes this important goal by development and production a new generation fertilizer.Thus the vital task of modern fertilizer science shows as the new fertilizer variety of research and development and seeks new auxiliary material, while performance fertilizer function, farthest makes ecotope from damage and fracture.A new generation's fertilizer should bear the vital task of preserving the ecological environment that modern fertilizer science is given; Embody the developing direction of eco-friendly modern fertilizer science; Meet the modern fertilizer industry momentum of development of fertilizer composite highly effective; Expand trace element and the Application Areas of High nutrient components in modern fertilizer.Natural ecological PAL material has possessed matrix and the feature of above-mentioned significant task.
PAL material is with first three letter designation of its raw material polygorskite (palgorskite).The constitutional features of PAL material, functional character and be rich in the feature of nutritional trace element, possessed fertilizer industry of new generation and melted the resource base sent out.The PAL biological nutrition strengthening fertilizer manufactured by PAL materials processing, in field of ecological agricultural, is widely used especially, mainly in fertilizer and soil conditioning, plays function affect in modern agricultural development; Can be used as controlled release, slow release fertilizer, nano level enhanced fertilizer, the auxiliary material of siliceous fertilizer and trace element fertilizer processing and base-material; Function affect is played in food crop protein synthesis, the synergy of high protein herbage and pesticide residue elimination etc.
Summary of the invention
A kind of biological nutrition is the object of the present invention is to provide to strengthen the preparation method of fertilizer.The biological nutrition strengthening fertilizer adopting the method obtained, the requirement that can improve the output of agricultural-food, increase the content of agricultural-food trace element, improve soil nutrient environment, improve soil health level, meet ecological, environmental protective.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
The preparation method of biological nutrition strengthening fertilizer of the present invention, mainly comprise the following steps: step one, after polygorskite raw ore material disintegrating is obtained polygorskite powder, the stirring that adds water makes polygorskite powder and water fully mix, make the slurry containing polygorskite, then described slurry is introduced solid-liquid cyclone separation device and carry out separating-purifying, get the slurry of overflow port, dehydrate, obtained PAL material; Step 2, by PAL material obtained for step one and nitrogen, phosphorus, potash fertilizer and organicly mix, through compound-stirring-granulation-cure-cool-pack, namely obtains biological nutrition and strengthens fertilizer.
As the further technical scheme of the present invention, the preparation method of the described slurry containing polygorskite, for after polygorskite is made powder, adopts 40 ~ 200 orders to sieve, and is then 15% ~ 20% add water according to the mass percent of polygorskite, abundant stirring, the i.e. obtained slurry containing polygorskite.
As the preferred technical scheme of the present invention, the preparation method of the described slurry containing polygorskite is after polygorskite is made powder, 40 ~ 200 orders are adopted to sieve, then be 15% ~ 20% add water according to the mass percent of polygorskite, be 3% ~ 8% add dispersion agent according to the mass percent of dispersion agent, abundant stirring, the i.e. slurry containing polygorskite of obtained excellent dispersion.Preferably, described dispersion agent is Tri sodium Phosphate or Sodium hexametaphosphate 99.
As the technical scheme that the present invention is more excellent, the preparation method of the described slurry containing polygorskite is after polygorskite is made powder, 150 orders are adopted to sieve, then be 18% add water according to the mass percent of polygorskite, be 5% add dispersion agent according to the mass percent of dispersion agent, abundant stirring, the i.e. slurry containing polygorskite of obtained excellent dispersion.
Further improve as the present invention, the speed of rotation of described solid-liquid cyclone separation device controls at 2500r/min ~ 3000r/min, and obtained PAL material particle size is 0.1 ~ 3.0 μm.
Further, described solid-liquid cyclone separation device is utilized to carry out secondary or stage trapping purification.
Further improve as the present invention, in described step 2, the weight proportion of PAL material and nitrogen, phosphorus, potash fertilizer and organic matter is: PAL material 55% ~ 76%, nitrogen, phosphorus, potash fertilizer 4% ~ 10%, organic 20% ~ 35%.
As the preferred technical scheme of the present invention, the weight proportion of described PAL material and nitrogen, phosphorus, potash fertilizer and organic matter is: PAL material 63% ~ 70%, nitrogen, phosphorus, potash fertilizer 5% ~ 8%, organic 22% ~ 30%.
As the technical scheme of optimum of the present invention, the weight proportion of described PAL material and nitrogen, phosphorus, potash fertilizer and organic matter is: PAL material 68.5%, nitrogen, phosphorus, potash fertilizer 6%, organic 25.5%.Preferably, described nitrogen, phosphorus, potash fertilizer are common composite fertilizer, and described organic matter is at least one of organic substance in the peat composed of rotten mosses, animal excrements, domestic refuse, agroforestry waste, food garbage.
Beneficial effect: the biological nutrition strengthening fertilizer adopting preparation method of the present invention to obtain, the requirement that can improve the output of agricultural-food, increase the content of agricultural-food trace element, improve soil nutrient environment, improve soil health level, meet ecological, environmental protective.
Accompanying drawing explanation
Fig. 1 is preparation technology's schema of biological nutrition of the present invention strengthening fertilizer.
Embodiment
Now by reference to the accompanying drawings the specific embodiment of the present invention is described in detail.
As shown in Figure 1, the preparation technology of the PAL material adopted in the present invention mainly comprises the steps, after polygorskite raw ore material disintegrating is obtained polygorskite powder, the stirring that adds water makes polygorskite powder and water fully mix, make the slurry containing polygorskite, then described slurry is introduced solid-liquid cyclone separation device and carry out separating-purifying, get the slurry of overflow port, dehydrate, namely obtain PAL material used in the present invention.
In more detail, after first polygorskite being made powder, adopt 40 ~ 200 orders to sieve, be then 15% ~ 20% add water according to the mass percent of polygorskite, fully stir, i.e. the obtained slurry containing polygorskite.In order to increase the dispersiveness of polygorskite in water, the dispersion agent that mass percent is 3% ~ 8% can be added when adding water, fully stirring, obtained dispersed better containing the slurry of polygorskite.Described dispersion agent can be Tri sodium Phosphate or Sodium hexametaphosphate 99 etc.Preferably, after first polygorskite being made powder, adopting 150 orders to sieve, is then 18% add water according to the mass percent of polygorskite, is 5% add dispersion agent, fully stirs, the obtained slurry containing polygorskite according to the mass percent of dispersion agent.
The speed of rotation of described solid-liquid cyclone separation device is controlled carry out separating-purifying at 2500r/min ~ 3000r/min to the slurry containing polygorskite, secondary or stage trapping purification can be carried out if desired, thus making the PAL material granule particle diameter obtained be 0.1 μm ~ 3.0 μm, purification rate reaches 90%-97%.Wherein median size is the PAL material of 2.69 μm, and particle productive rate reaches 97%, and median size is the PAL material of 0.81 μm, and particle productive rate reaches 50%, and median size is the PAL material of 0.10 μm, and particle productive rate reaches 20%, and maximum particle diameter is 3.0 μm.
The major parts of described solid-liquid cyclone separation device is a conical rotor drum, and diameter increases from inside to outside, and the gradient (semi-cone angle) is 3 ° ~ 5 °, and rotary drum borrows conical floor fixing on center shaft and by electric motor driven rotary.Upper feed mouth and lower feed mouth stretch in rotary drum, and the slurry containing polygorskite is sprayed into by feed mouth, are attached on rotatory drum wall along tangential direction, while drum rotating, along the inclined-plane flowing of drum wall, are formed in the spiralling track in space.Now, slurry stream containing polygorskite is a weak turbulence membrane, when centrifugal force size appropriate amount, can form enough stream change layer thickness and suitable velocity slope, there is effective layering in polygorskite raw ore powder granule, the interlayer repulsion that material grain group produces by shear campaign is loose in stream change layer, gently, heavy material is according to the different transfer relatively of local pressure of self, heavy material proceeds to bottom, and namely the heavy material entering bottom is attached to less movement on bulging wall, and light material enters upper strata.Light material is then at selected velocity of rotation effect low suspension, and its slurry stream is discharged, when heavy material is dipped into certain thickness with higher axial flow velocity by the gap between rotary drum and chassis, stop feed, feed high pressure water by punching material mouth, rinse the heavy material of deposition, realize heavy, light feed separation.High speed centrifugation equipment for purifying belongs to intermittent device, and wherein, feed, wash-down water inject and heavy, light material discharge process automatically runs.
Through the slurry containing polygorskite of separating-purifying, it is still the thick pulpous state (water content is still greater than 50%) of High water cut, and tool Alteration and heat sensitization, thus in high dispersing state, by a kind of drying installation of ultrafine powder, under the mechanical dispersion power effect of drying medium (hot blast), material is made to form particulate state fluidization, complete calorific value instantaneously to exchange, and prevent the tendency of secondary agglomeration, material is made to reset into size of particles originally, possible reunion also can be depolymerizated, moisture fast eliminating (water content is down to 5%), and reach " immediately " refinement, achieve dehydrating of slurry simultaneously, obtain PAL material.
By the PAL material of above-mentioned preparation and nitrogen, phosphorus, potash fertilizer and organicly mix, through compound-stirrings-granulation-cure-cool-pack, namely obtain biological nutrition and strengthen fertilizer.
In order to ensure the bioavailability of biological nutrition of the present invention strengthening fertilizer, must the accurate particle diameter of control PAL material and the mass percent of PAL material and nitrogen, phosphorus, potash fertilizer and organic matter.Because the particle diameter of PAL material is less, the specific surface area of PAL material is higher, its adsorptive power, mass transfer ability, catalytic capability and strong ion-exchange capacity are all better, but particle diameter diminishes and very easily causes secondary agglomeration, cause the specific surface area of PAL material to reduce, adsorptive power, mass transfer ability, catalytic capability and strong ion-exchange capacity die down.As can be seen here, the particle diameter of PAL material has very important effect to its adsorptive power, mass transfer ability, catalytic capability and strong ion-exchange capacity.And PAL material and nitrogen, phosphorus, potash fertilizer and organic matter adopt suitable proportioning, biological nutrition can be made to strengthen fertilizer and play best weight-improving effect, improve the output of agricultural-food, the content of raising agricultural-food essential trace element, meets the requirement of ecological, environmental protective.
Thus, the particle diameter of PAL material of the present invention is 0.1 ~ 3.0 μm, and nitrogen, phosphorus, potash fertilizer are common composite fertilizer, and organic matter is at least one of organic substance in the peat composed of rotten mosses, animal excrements, domestic refuse, agroforestry waste, food garbage.The weight proportion of PAL material and nitrogen, phosphorus, potash fertilizer and organic matter is: PAL material 55% ~ 76%, nitrogen, phosphorus, potash fertilizer 4% ~ 10%, organic 20% ~ 35%.Preferably, the weight proportion of described PAL material and nitrogen, phosphorus, potash fertilizer and organic matter is: PAL material 63% ~ 70%, nitrogen, phosphorus, potash fertilizer 5% ~ 8%, organic 22% ~ 30%.More preferably, the weight proportion of described PAL material and nitrogen, phosphorus, potash fertilizer and organic matter is: PAL material 68.5%, nitrogen, phosphorus, potash fertilizer 6%, organic 25.5%.
The application example of biological nutrition strengthening fertilizer of the present invention is as follows:
In 2002 ~ 2007 years in Zhejiang Province, Shandong Province, the central and east semiarid region in central arid belt in Ningxia and Gansu Province, 11 counties in Hexi Corridor Oasis and Tianzhu Alpine district, district (Gan Zhou, Liangzhou, Minqin, God blessings, Gaolan, Gu Lang, Yuzhong, Jingyuan, Qin'an, Xifeng and Kongtong Mountain), to 6 kinds of food crop, 3 kinds of oil crops, 7 kinds of fruit and vegetable crops and 4 kinds of herbage totally 20 kinds of crops field test is set, study biological nutritional fortification fertilizer to fruit, dish, grain and grass volume increase and the mechanism of qualitative effects and technology, comprising the enrichment of heavy metal or the removal that affect quality.
1, utilisation technology and the theoretical investigation of biological nutrition strengthening fertilizer is extensively carried out
At corn, wheat, brewer's barley, potato, paddy rice, pea, flax, oily certain herbaceous plants with big flowers, rape, celery, cucumber, seed melon, tomato, circle 16 kinds of grains such as eggplant and capsicum, oil, really, 4 kinds of herbages such as dish crop and alfalfa carry out the field tests of 20 multinomial times, to effect, the application process research experiment of biological nutrition strengthening fertilizer, obtain the research data of nearly more than 10 ten thousand numbers of words, substantially verified the effect of increasing production of biological nutrition strengthening fertilizer, method of application and joined with chemical fertilizer, agriculture fertilizer the gordian technique executed.The basis of experimental study is actively carried out representative area 2000 mu of field demonstrations, and the reliability of confirmation experimental study achievement, achieves initial success, for biological nutritional fortification fertilizer provides technical support and template model in the application of crop production.
Research shows, employing particle diameter is the PAL material 55% ~ 76% of 0.1 ~ 3.0 μm, be equipped with the nitrogen of 4% ~ 10%, phosphorus, potash fertilizer and 20% ~ 35% the obtained biological nutrition strengthening fertilizer of organic matter, agricultural product quality can be significantly improved, improve the content of the essential trace element of agricultural-food, meet the requirement of ecological, environmental protective.
2, biological nutrition strengthening fertilizer development and production and application
The PAL material base potato special fertilizer of development in 2006, after Gaolan is on probation, achieves the more satisfactory effect of volume increase more than 30% and raising commodity rate 25%, the dark welcome by peasant.2007, for the development of Gansu potato preponderant dinstinctive industry, the careful arrangement systematic testing research of PAL material base potato special fertilizer Three models and level: arrange scale-up research on 700 mu of faces in the west of Gansu Province, Gaolan, Yongjing, Dingxi, Lintao, area, Yongdeng six, arrange 4 mu in Zhong Chuan town and studied by the specification sampling test of doctor's stringent regulations.The experimental study of the supporting special fertilizer of " black beauty " potato feature breed 500 mu, and the experimental study of Gaolan red sand ground potato special fertilizer 33 mu.Studied by systematic testing, strive for obtaining breakthrough achievement, at present, feedback is good.Meanwhile, the work well afoot of development vegetable series special fertilizer and Chinese medicinal materials series special fertilizer is instructed.
3, the main achievement of biological nutrition strengthening fertilizer application of the present invention
1) biological nutrition strengthening fertilizer of the present invention, makes food crop increase production 3.4% ~ 8.4%, fruit and vegetable crop yield 3.5% ~ 7.9%.
2) biological nutrition strengthening fertilizer of the present invention can significantly improve crop quality, and the crude protein raising 0.6% ~ 2.3% of food crop, fat raising 0.2%, starch content can be made to improve 0.7% ~ 22.9%; The crude protein raising 4.2% ~ 12.2% of fruit and vegetable crop, crude fat raising 5.4% ~ 25.0%, VITAMIN 2.3% ~ 12.7%, soluble sugar improve 3.9% ~ 9.2%; The crude protein content of herbage is improved, and crude fiber content reduces.
3) using biological nutrition of the present invention strengthening fertilizer can make iodine content increase by 30.8% ~ 251.0%, selenium content in crop product increase by 7.3% ~ 328.5%, and the amplification such as manganese, iron, zinc, copper and calcium are 3.5% ~ 77.1%; And objectionable impurities arsenic reduces by 7.7% ~ 65.6%, plumbous reduces by 21.0% ~ 55.0%, mercury reduces by 17.4% ~ 89.8%.Also have discrete trial to occur the phenomenon that arsenic increases, but the amplitude increased is within environment allowed band.
4) using biological nutrition of the present invention to strengthen fertilizer to have no adverse effects to soil physico-chemical property, is a kind of fertilizer material of environment-friendly type, and the brewer's barley field soil iodine that application of biological nutrition strengthening fertilizer increases by 2.8 ~ 3.8 times, and zinc improves 13.6%, and iron improves 0.6%.Think that biological nutrition of the present invention strengthening fertilizer can be used as thus and improve soil nutrient environment, raising soil health level, environment amenable new-type fertilizer.
4, PAL material improves the mechanism of food crop protein content
Through long-term exploration, tentatively sum up the structure, the element feature that utilize PAL material, for biology procreation provides nutrition, improves on the basis of biological nitrogen fixation level, add the stress efficacy of element, structure fixed nitrogen.The storage nitrogen provided due to effect and the laminate structure of iron, molybdenum, vanadium cofactor (Fe, Mo, V) polyelectrons oxydo-reductase and reaction field domain, make basis " nitrogen " material of synthetic protein, the abundance in soil greatly improves; Utilize PAL material to be rich in the enzyme active center such as zinc, copper element, improve gal4 amino acid transformation efficiency by enzyme engineering effect; Utilize the catalytic effect of catalytic elements manganese etc. in PAL material, the catalysis conversion rate of gal4 amino acid to protein.In above three phases, give full play to PAL material structure, element, the effect of biological nature matrix-mediation and comprehensive function, facilitated the raising of crop protein synthesis amount and combined coefficient.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification sheets, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (10)
1. the preparation method of a biological nutrition strengthening fertilizer, it is characterized in that mainly comprising the following steps: step one, after polygorskite raw ore material disintegrating is obtained polygorskite powder, the stirring that adds water makes polygorskite powder and water fully mix, make the slurry containing polygorskite, then described slurry is introduced solid-liquid cyclone separation device and carry out separating-purifying, get the slurry of overflow port, dehydrate, obtained PAL material; Step 2, by PAL material obtained for step one and nitrogen, phosphorus, potash fertilizer and organicly mix, through compound-stirring-granulation-cure-cool-pack, namely obtains biological nutrition and strengthens fertilizer.
2. the preparation method of biological nutrition strengthening fertilizer according to claim 1, it is characterized in that: the preparation method of the described slurry containing polygorskite is after polygorskite is made powder, 40 ~ 200 orders are adopted to sieve, then be 15% ~ 20% add water according to the mass percent of polygorskite, abundant stirring, the i.e. obtained slurry containing polygorskite.
3. the preparation method of biological nutrition strengthening fertilizer according to claim 2, it is characterized in that: the preparation method of the described slurry containing polygorskite is after polygorskite is made powder, 40 ~ 200 orders are adopted to sieve, then be 15% ~ 20% add water according to the mass percent of polygorskite, be 3% ~ 8% add dispersion agent according to the mass percent of dispersion agent, abundant stirring, the i.e. slurry containing polygorskite of obtained excellent dispersion.
4. the preparation method of biological nutrition strengthening fertilizer according to claim 3, is characterized in that: described dispersion agent is Tri sodium Phosphate or Sodium hexametaphosphate 99.
5. the preparation method of biological nutrition strengthening fertilizer according to claim 3, it is characterized in that: the preparation method of the described slurry containing polygorskite is after polygorskite is made powder, 150 orders are adopted to sieve, then be 18% add water according to the mass percent of polygorskite, be 5% add dispersion agent according to the mass percent of dispersion agent, abundant stirring, the i.e. slurry containing polygorskite of obtained excellent dispersion.
6. the preparation method of the biological nutrition strengthening fertilizer according to any one of claim 1-5, it is characterized in that: the speed of rotation of described solid-liquid cyclone separation device controls at 2500r/min ~ 3000r/min, obtained PAL material particle size is 0.1 ~ 3.0 μm.
7. the preparation method of biological nutrition strengthening fertilizer according to claim 6, is characterized in that: utilize described solid-liquid cyclone separation device to carry out secondary or stage trapping purification.
8. the preparation method of biological nutrition strengthening fertilizer according to claim 1, it is characterized in that: in described step 2, the weight proportion of PAL material and nitrogen, phosphorus, potash fertilizer and organic matter is: PAL material 55% ~ 76%, nitrogen, phosphorus, potash fertilizer 4% ~ 10%, organic 20% ~ 35%.
9. the preparation method of biological nutrition strengthening fertilizer according to claim 8, it is characterized in that: the weight proportion of described PAL material and nitrogen, phosphorus, potash fertilizer and organic matter is: PAL material 63% ~ 70%, nitrogen, phosphorus, potash fertilizer 5% ~ 8%, organic 22% ~ 30%.
10. the preparation method of biological nutrition strengthening fertilizer according to claim 9, is characterized in that: the weight proportion of described PAL material and nitrogen, phosphorus, potash fertilizer and organic matter is: PAL material 68.5%, nitrogen, phosphorus, potash fertilizer 6%, organic 25.5%.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4885021A (en) * | 1988-02-22 | 1989-12-05 | Tennessee Valley Authority | Particulate urea with clay incorporated for hardness and/or gelling |
| CN1978405A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material flower-oriented and fruit-oriented flower special fertilizer |
| CN1978404A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material watch leaf flower special fertilizer |
| CN1978403A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material hulb-root flower and fleshy-juicy flower special fertilizer |
| CN1978396A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material slow-release nitrogen fertilizer |
| CN1978390A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material micron, submicron powder purifying-super micro integrating technology |
| CN1978399A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material slow-release compound fertilizer |
| WO2012065214A1 (en) * | 2010-11-15 | 2012-05-24 | Csbp Limited | A fertiliser composition containing a plant nutrient and method for producing it |
-
2015
- 2015-03-11 CN CN201510105433.8A patent/CN105315097A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4885021A (en) * | 1988-02-22 | 1989-12-05 | Tennessee Valley Authority | Particulate urea with clay incorporated for hardness and/or gelling |
| CN1978405A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material flower-oriented and fruit-oriented flower special fertilizer |
| CN1978404A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material watch leaf flower special fertilizer |
| CN1978403A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material hulb-root flower and fleshy-juicy flower special fertilizer |
| CN1978396A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material slow-release nitrogen fertilizer |
| CN1978390A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material micron, submicron powder purifying-super micro integrating technology |
| CN1978399A (en) * | 2005-12-06 | 2007-06-13 | 甘肃凯西生态环境工程有限公司 | PAL material slow-release compound fertilizer |
| WO2012065214A1 (en) * | 2010-11-15 | 2012-05-24 | Csbp Limited | A fertiliser composition containing a plant nutrient and method for producing it |
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