A kind of production method of organic Se-rich iron zinc nutrition enriched rice
Technical field
The present invention relates to a kind of production method of rich ferroselenium zinc rice, particularly a kind ofly use the production method that rich ferroselenium zinc organic and inorganic fertilizer prepares rich ferroselenium zinc rice through the field.
Background technology
Selenium is the essential trace element of humans and animals, is a kind of antioxidant, has to alleviate old and feeble effect, can eliminate multiple harmful free radical, is called as oxidation resistant " gold partner " with the vitamin E synergy.As micronutrient (selenocysteine special in unique a kind of human genome; The 21st seed amino acid); Its importance is proved (Rayman; M P. 2002, The argument for increasing selenium intake. Proceeeding of the Nurtrition Society, 61:203-215).Scarce selenium can cause body immunity to descend, and with the generation that causes Keshan disease, Kaschin-Beck disease, seriously lacks selenium and will cause 40 various disease conditions, like coronary heart disease, hemolytic anemia and liver cancer etc.
1988, the intake that Chinese Soclety of Nutrition has proposed China adult selenium every day was 50~250 micrograms.Yet; China's 13 province's findings of the survey show that every day, selenium intake was merely 36 micrograms per capita in China, was lower than 50 microgram standards of world health organisation recommendations; The amount of replenishing 50 to 200 micrograms every day of more advising far below Chinese Soclety of Nutrition is less than 1/3rd of the U.S..China per capita every day the selenium intake wretched insufficiency, influence the physique of the nation people.
Chinese population selenium intake deficiency has two major reasons: the first, and the selenium resource distribution of China is seriously uneven.1980, national selenium generaI investigation showed, the high selenium zone (enshi) that the existing world of China is rare is internationally recognized scarce selenium area but 2/3 area is arranged, and the area more than 1/3 is the serious selenium that lacks, and wherein Yangtze River Delta Area such as Soviet Union, Zhejiang, Anhui are the serious selenium district that lacks.In scarce selenium area, soil lacks selenium, food lacks selenium, causes crowd's selenium under-supply.The second, it is limited that Chinese's dietary structure causes selenium to take in.The relative food with high of Se content comprises seafood, meat and pluck, and the meat ratio is relatively low from Chinese traditional diet and most of real life condition.
Though can take number of ways to mend selenium for poor selenium area, generally believe that the selenium of human body is mainly derived from food, it is more suitable that tonic is mended selenium.With respect to inorganic selenium, the biogenic organic selenium has advantages such as absorption rate height, toxicity be little, and plant selenium is superior to animal selenium.
Iron is the maximum essential trace element of people's in-vivo content, is bringing into play important physiological action in vivo.The human body iron deficiency not only causes the generation of anaemia illness, also can cause the immune function of human body infringement, is prone to suffer from the sick infection of acute and chronic; Pregnant woman's iron deficiency also can cause premature labor and fetal in utero poor growth.Source of iron is taken the photograph the people in food, because iron content is widely different in the soil environment of various places, and the difference of different regions people's meals consumption structure and economic situation, various places resident's iron nutrition condition difference is also very big, according to statistics, 30% population iron deficiency is arranged in the world.The plain shortage of iron is the ubiquitous problems of China urban and rural residents; The 4th Chinese residents nutrition that lasts 2 years and investigation of health conditions report according in October, 2004 Ministry of Public Health's issue; Whole nation resident's anaemia illness rate average out to 15.2%, city male sex lO.6%, Urban Women 17.0%, the rural area male sex 12.9%, rural area women 18.8%; City 2 years old is with interior infant, old man, women of child-bearing age's anaemia illness rate are respectively 24.2%, 21.5% and 20.6% more than 60 years old.The iron deficiency rate of Chinese children reaches 38.6%, does not mend iron owing to have easy detection means, most children not to carry out nutrition, so the anaemia illness rate of Chinese children is up to 30%, this problem of the poor areas of the western region is even more serious.
Solve the not enough problem of needed by human body ferro element at present both at home and abroad; Generally all be in food, to add micro-molysite; The iron deficiency severe patient is then taken the iron content medicine; Ferrous-fortifier is done with ferric citrate, ferrous lactate, ferrous sulfate, ferrous gluconate etc. by for example many in the world countries, production irony fortified bread, cereal, flour, dairy products etc.; China does ferrous-fortifier with ferrous sulfate to produce iron fortified food products such as enriched cracker, beverage, the iron deficiency severe patient with ferrous sulfate, ferrous lactate etc. as drug administration.Because the mineral salt of iron are as food additive, iron taste is heavy, fishy smell is arranged after edible, and to the less stable of heat, light, in food processing, can produce deposition unavoidably, and molysite also can quicken becoming sour of fat, influences the quality of irony condensed food.Zinc be grow, one of the necessary important trace element of nutrition biochemical metabolism.
In all essential trace elements of tissue, the content of zinc is only second to iron.It is the part of 200 plurality of enzymes in the human body; Synthetic, the sugar of wide participation nucleic acid and protein and energy metabolism, oxidoreduction and human hormone's forming process; Have and promote to grow with regeneration, improve immunity, promote appetite, participate in keeping the multiple effects such as normal configuration and function of skin and mucous membrane.Especially obvious to fetus and growth of children effect, scarce zinc may cause irreversible developmental defect.Therefore, effective and necessary zinc supplementation is carried out in prevention in advance, early detection and in time correct zinc deficiency, is a healthy engineering that can not be ignored.
Paddy rice is the staple food crop of China, is that the population of staple food accounts for 50% of country's total population with rice.Therefore,, improve selenium, iron and zinc content in the rice through suitable pathways, significant for the selemium nutrition that improves China resident, zinc nutrition and iron nutrition.
In several kinds of approach that improve rice ferroselenium zinc content, be the most direct through adding nutrient production nutrient enhancing rice, also be to improve the little plain deficiency disease of people means the most efficiently at present.But mostly the little plain nutrition of being added is inorganic states, and physiologically active is low, and the absorption of human body availability is not high; Simultaneously because the difference of production technology, the nutrient enhancing rice that has nutrition leak in elutriation, the nutrition grain that has is because of having differently with general rice on the color, and the consumer is difficult for accepting for the moment; Though can effectively solve nutrition leak and grain of rice color problem and adopt rice to soak the nutrient enhancing rice of inhaling surface coating production, its processing cost increases more.
At present, the domestic fertilizer that is used to produce the rice that is rich in various nutritive elements is the method through foliage-spray mainly, and promptly foliage-spray is rich in the solution of various nutritive elements in the Rice Production process.A kind of method that contains the selenium-rich agent cultivation selenium-rich rice of selenium inorganic compound and phosphate composition through foliage-spray is disclosed among the CN ZL200410009346.3 " a kind of cultivation method of selenium-rich rice "; CN101228834A " a kind of production method of biological selenium-enriched nutrient rice " has proposed a kind of different times at paddy growth, sprays the mixed liquor that is mixed and made into by RE microbial fertilizer, sodium selenite and BAS, to produce the method for selenium-rich nutritive rice; Patent documentation CN1806507A " the kind method for planting of green selenium-and calcium-enriched rice " discloses a kind of different times at paddy growth, sprays rich selenium calcium efficient organic liquid fertilizer, but does not announce concrete composition and the preparation method that this liquid is fertile; CN ZL 200610086308.8 " organic selenium-zinc enriched nutrition rice and production method thereof " discloses a kind of different times at paddy growth; Spray the rich selenium zinc fertilizer of the high concentration that is made into by selenite, zinc fertilizer, organic nitrogen, phosphorus, potassium and multi-functional trace element, the method for producing selenium-zinc enriched nutrition rice; CN101225006A discloses preparation method of a kind of zinc-iron-selenium enriched bio-fertilizer and using method thereof, is equally to process foliage fertilizer, sprays at rice growing season.CN101717294A discloses a kind of Se-enriched bio-organic fertilizer and preparation method thereof, and this fertilizer is rich in nutritive elements such as zinc-iron selenium, and method for using is for converting foliage-spray behind the water.
Owing to all nutritive elements such as zinc-iron selenium are processed foliage fertilizer in the above-mentioned patent, adopt the method production of foliage-spray to be rich in the rice of nutritive element such as needed by human body zinc-iron selenium, its advantage is that crop absorbs soon.But its shortcoming also clearly; At first foliage-spray requires in the fertilizer nutritive element content than higher; Just require the concentration of sodium selenate, potassium selenate, potassium selenite, ammonium selenite and sodium selenite to reach 1%, 0.56%, 1.09%, 1%~1.78% and 0.83%~1.11% respectively like the embodiment among the CN ZL200410009346.3, the selenium fertilizer of high concentration has increased uses fertile cost; Secondly, because foliage-spray, selenium, iron fertilizer are easy to be sprayed onto the field or because precipitation gets into soil, so just field runoff water and soil are caused certain pollution, and be very big waste.
Chinese invention patent CN 101791081 A disclose a kind of rice rich in selenium and production method thereof; Be selenium-rich nutritive agent (being made up of nanometer selenium plant nutrient agent and nitrogen-phosphorus-potassium compound fertilizer mixing) to be added again apply the field as base manure after nitrogen-phosphorus-potassium compound fertilizer mixes, results back gained before using.Compare the method for foliage-spray selenium-rich agent, the consumption of selenium obviously reduces, and has saved the step of independent benefit selenium simultaneously, and cost and working time are reduced, and the selenium in the rice mainly exists with the form of organic selenium, is easily absorbed by the body, and has tangible progress.
But the just conventional chemical fertilizer of nitrogen phosphorus potassium in should invention, and need be using before manual work use after selenium-rich nutritive agent and nitrogen-phosphorus-potassium compound fertilizer are mixed thoroughly by a certain percentage.The more important thing is; Used above-mentioned fertilizer in this invention application the rice of being produced is reached among the 4th ~ 11 embodiment of rice rich in selenium national standard, the consumption of selenium reaches 8000 ~ 54545 milligrams/mu in the fertilizer that the whole growth season of paddy rice is used, and the consumption of selenium is still bigger; The selenium fertilizer of high concentration has increased uses fertile cost; And because selenium is poisonous, excessive selenium has caused pollution to field runoff water and soil, and is very big waste.
The production method of therefore, producing the rice that is rich in various nutritive elements such as selenium, iron, zinc need further be improved.
Summary of the invention
In view of this; Technical problem to be solved by this invention provides a kind of production method of nutrient enhancing rice of organic Se-rich iron zinc, can reach the effect that selenium, iron, the zinc of using low content just can be produced the rich ferroselenium zinc rice that reaches relevant criterion (eight kinds of elements such as lead, cadmium, chromium, mercury, selenium, arsenic, copper, zinc are limited the quantity of in NY 861-2004 grain (containing cereal, beans, potato class) and the goods) with this production method.
Technical problem to be solved by this invention is achieved through following technical scheme:
A kind of production method of organic Se-rich iron zinc nutrition enriched rice; Steps in sequence is seed selection, seedling, play field, rice transplanting, field management, harvesting, processing; Said field management comprises fertilising; The fertilizer of being executed is rich ferroselenium zinc organic and inorganic fertilizer, and fertilizer application frequency is 1 ~ 4 time, and said rich ferroselenium zinc organic and inorganic fertilizer contains selenite, ferrous salt, zinc salt, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, poly-aspartic-acid or its salt, the organic manure that becomes thoroughly decomposed and siliceous fertilizer.
The fertilizer application frequency of said rich ferroselenium zinc organic and inorganic fertilizer is 3 times, and concrete fertilizing method is:
(1) use for the first time: before the arable land, use rich ferroselenium zinc organic and inorganic fertilizer earlier and make base manure, amount of application is 20~35 kilograms every mu;
(2) use for the second time: rich ferroselenium zinc organic and inorganic fertilizer is evenly spread fertilizer over the fields as leaven in the field in the back of ploughing before broken upturned soil, amount of application is 10~25 kilograms every mu;
(3) use for the third time: before rice tillering is put the field latter stage, use rich ferroselenium zinc organic and inorganic fertilizer as topdressing, amount of application is 30~60 kilograms every mu.
As the improvement of technique scheme, at rice plant of tillering stage, panicle spike primordium differentiation stage, need look the paddy growth situation and impose urea, each amount of application is 5~10 kilograms every mu.
Each component is by weight in the said rich ferroselenium zinc organic and inorganic fertilizer:
0.004~0.010 part of selenite;
1~5 part of ferrous salt;
0.2 ~ 1 part of zinc salt;
15~33 parts in nitrogenous fertilizer;
12~24 parts in phosphate fertilizer;
10~17 parts in potash fertilizer;
0.02 ~ 0.08 part of poly-aspartic-acid or its salt;
30~50 parts in the organic manure that becomes thoroughly decomposed;
5~8 parts of siliceous fertilizers.
Said selenite is selected from least a in potassium selenite, sodium selenite or the ammonium selenite; Said ferrous salt is selected from least a in ferrous sulfate, the Ferric Sodium Edetate; Said zinc salt is selected from least a in zinc sulphate, basic zinc sulfate, zinc oxide, zinc chloride, the zinc carbonate; Said nitrogenous fertilizer is selected from least a in urea, the ammonium chloride; Said phosphate fertilizer is selected from MAP, diammonium phosphate, superphosphate and the fused calcium magnesium phosphate at least a; Said potash fertilizer is selected from least a in potassium chloride, potassium dihydrogen phosphate and the dipotassium hydrogen phosphate; Said poly-aspartic-acid or its salt are selected from least a in poly-aspartic-acid, poly-aspartic-acid potassium, poly-aspartic-acid ammonium or the poly-aspartic-acid sodium; The said organic manure that becomes thoroughly decomposed is through the feces of livestock and poultry of batch production fermentation maturity and/or bacterium chaff; Said siliceous fertilizer is selected from least a in rice hull ash that sodium silicate, silicon potash fertilizer, burning cross, slag, the flyash.
Above-mentioned rich ferroselenium zinc organic and inorganic fertilizer also contains 3 ~ 12 parts conditioner, and said conditioner is attapulgite or zeolite powder.
The various raw materials that the present invention produces the employed rich ferroselenium zinc organic and inorganic fertilizer of organic Se-rich iron zinc nutrition enriched rice all can use the conventional products that uses in the present fertilizer production; Rich ferroselenium zinc organic and inorganic fertilizer adopts common process and device fabrication in the present fertilizer production; The method for preparing rich ferroselenium zinc organic and inorganic fertilizer according to the invention is to adopt present fertilizer production enterprise modal two kinds of technologies, slurry process or granulating method technology.
Compared with prior art, the present invention has following beneficial effect:
(1) production method of organic Se-rich iron zinc nutrition enriched rice of the present invention is to adopt the method for soil application to produce organic Se-rich iron zinc nutrition enriched rice; When making full use of selenite, ferrous salt and zinc salt characteristic; Itself and composite fertilizer, fertilizer are combined as a whole with the form of product; Not only can be rice Selenium Supplement, iron, zinc element, can also replenish other nutritive element, thereby reach the coordination of crop aerial growth and under ground portion absorption; Realize the common raising of crop yield and quality, the rice of being produced is a kind of rice of nutrition reinforced type of organic Se-rich iron zinc.Simultaneously, adopt the method for soil application, produce organic Se-rich iron zinc nutrition enriched rice, change the drawback that rich ferroselenium zinc rice is produced in foliar application in the past, the selenite usage amount significantly reduces, and has reduced production cost.
(2) to produce the rich ferroselenium zinc organic and inorganic fertilizer that organic Se-rich iron zinc nutrition enriched rice used be the soil characteristics according to paddy rice plantation area in the present invention; The nutrients ratio and the iron fertilizer content of adjustment nitrogen phosphorus potassium; Thereby the n p k nutrition of suitable balance is provided for crop; And add the raisings crop anti-adversities such as fertilizer, siliceous fertilizer that become thoroughly decomposed, improve photosynthesis, stimulate root system development, promote plant growth and the absorption of iron is transformed, therefore use and hang down the fertilizer that contains selenium, iron, zinc amount and can produce the rice that reaches relevant criterion.According to the production method among the present invention; Use rich ferroselenium zinc organic and inorganic fertilizer of the present invention, total amount of application of the whole growth season selenium of paddy rice only has 600 ~ 12000 milligrams/mu, and the rice of being produced just can reach the selenium-rich rice national standard; Thereby reach joint fertilizer and fall this, improve the purpose of rice matter.Simultaneously because to contain selenium, iron, zinc amount in the fertilizer of using less, the pollution that can avoid excessive selenium, iron, zinc that field runoff water and soil are caused.
(3) the present invention adopts suitability for industrialized production fully; Selenium, iron, zinc stable content, even; Save labor when using; To contain selenium, iron, zinc preparation and conventional fertilizer before having avoided using and carry out selenium, iron, the zinc skewness in fertilizer that secondary stirring causes, save labour and working time.
(4) organic Se-rich iron zinc nutrition of the present invention is strengthened in the production method of rice; The fertilizing time of rich ferroselenium zinc organic and inorganic fertilizer is identical period with the Rice Production conventional fertilizer application; Do not need specially treated, practiced thrift the labour, the method that rich ferroselenium zinc organic and inorganic fertilizer adopts gradation to use; The whole growth season that more helps crop absorbs ferroselenium zinc element and other fortification element more fully, and reduces the loss of nutrient and ferro element.
(4) containing poly-aspartic-acid (salt) in the fertilizer components of the present invention, is a kind of through bionical synthetic macromolecular compound, in the natural housing that is present in sea mollusk, and safety non-toxic, environmental friendliness, biodegradable.Poly-aspartate can have chelation to metal ion; Can promote N, P, K and selenium, iron microelement to supply with plant, make plant more effectively utilize fertilizer, improve growth rate, the yield and quality of crops; And (cold one is glad etc. to improve soil quality; The corn science, 2005,13 (3): 100-102).
(5) improving rice selenium, iron, zinc nutrition situation through the rich selenium of paddy rice, iron, zinc culture technique, is to solve meals at present to lack selenium, iron, the most cost-effective approach of zinc problem.We can say that the rice of cultivating through mode of the present invention is exactly a kind of natural selenium-rich, Fu Tie, rich zinc rice; The selenium of this organic or iron or zinc absorption of human body availability are high; It has overcome the deficiency of nutrient enhancing rice; And avoided the biological safety problem arguement of transgenic rice, thereby develop this new function rice of rich ferroselenium rice through this approach boundless application prospect will be arranged, and selenium, iron, the zinc nutrition deficiency of improving the people had realistic meanings.
Embodiment
The various raw materials that the present invention produces the employed rich ferroselenium zinc organic and inorganic fertilizer of organic Se-rich iron zinc nutrition enriched rice all can use the conventional products that uses in the present fertilizer production; Rich ferroselenium zinc organic and inorganic fertilizer adopts common process and device fabrication in the present fertilizer production; The method for preparing rich ferroselenium zinc organic and inorganic fertilizer according to the invention is to adopt present fertilizer production enterprise modal two kinds of technologies, slurry process or granulating method technology.
The selenite that is adopted among the present invention, ferrous salt, zinc salt, siliceous fertilizer, poly-aspartic-acid or its salt, the fertilizer that becomes thoroughly decomposed are commercially available product, also can synthesize according to known method, and this paper repeats no more.
For the ease of it will be appreciated by those skilled in the art that the present invention is done further description below in conjunction with embodiment.The concrete composition that selenite, ferrous salt, zinc salt, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, poly-aspartic-acid or its salt, the organic manure that becomes thoroughly decomposed, siliceous fertilizer are selected for use among the embodiment just illustrates of the present invention; It only is that the fertilizer formula that the present invention recommends is formed that prescription among the embodiment is formed; Fertilizing amount in the production method also only illustrates; Be not to qualification of the present invention, those skilled in the art can expand and extend on basis of the present invention based on spirit of the present invention.
Embodiment 1:
Field trial place: the west of a city, Woyang County, Anhui Province, middle fertility.The basic physical and chemical of test place soil is seen table 1.
Table 1 supplies examination soil basic chemical property
The confession rice of trying the water: kind is that the conventional single cropping rice connects good round-grained rice l number.
The production method of present embodiment organic Se-rich iron zinc nutrition enriched rice is seed selection, seedling, play field, rice transplanting, field management, harvesting, processing; The fertilizer that field management is executed is rich ferroselenium zinc organic and inorganic fertilizer; In paddy rice different vegetative period; Divide and use rich ferroselenium zinc organic and inorganic fertilizer three times, impose urea in addition in good time, concrete fertilization time and fertilizing amount are:
(1) uses for the first time: before the arable land, use 35 kilograms of rich ferroselenium zinc organic and inorganic fertilizers earlier for every mu and make base manure;
(2) use for the second time: 15 kilograms of rich ferroselenium zinc organic and inorganic fertilizers are spread fertilizer over the fields as leaven every per mu sparing before broken upturned soil in the back, arable land;
(3) use for the third time: before rice tillering is put the field latter stage, use rich ferroselenium zinc organic and inorganic fertilizer as topdressing, amount of application is 50 kilograms every mu;
(4) impose urea in rice plant of tillering stage and panicle spike primordium differentiation stage respectively, consumption is respectively 5 kilograms every mu and 7 kilograms every mu.
0.006 part of ammonium selenite; 4 parts in ferrous sulfate, 1 part in zinc sulphate, 0.04 part of poly-aspartic-acid; 17.2 parts in urea, 10 parts of MAPs and 6 parts of superphosphate, 10 parts in potassium chloride, 45 parts of cow dungs, 5 parts of sodium silicate through the batch production fermentation maturity, 6.794 parts of attapulgites.
The percentage by weight of each component is: organic matter 20%, and purity nitrogen (N) 9%, phosphorus is (with P
2O
5Meter) 5%, potassium is (with K
2The O meter) 6%, selenium (in Se) 0.002 %, iron (in Fe) 0.68%, zinc (in Zn) 0.2%.
Total amount of application of selenium in the present embodiment (in Se) is 2000 milligrams/mu, and total amount of application of ammonium selenite is 6000 milligrams/mu.
After using the rich ferroselenium organic and inorganic fertilizer of present embodiment; Measure total selenium content, iron-holder and zinc content in the rice after the paddy rice ripe and harvested, assay method is according to GB/T 22499-2008 " rich selenium paddy " and GB/T14609-2008 " the mensuration flame atomic absorption spectrometry of copper, iron, manganese, zinc, calcium, magnesium in grain and oil check cereal and the goods thereof ".
Through detect use the paddy rice maturation of this rich ferroselenium organic and inorganic fertilizer after, the total Se content in every kilogram of rice is 0.12 ~ 0.28 milligram, 0.20 milligram of average out to reaches the selenium-rich rice standard; Total iron content in every kilogram of rice is 63.2 ~ 110.7 milligrams, 86.95 milligrams of average out to; Total zinc content in every kilogram of rice is 33.6 ~ 48.2 milligrams; 40.9 milligrams of average out to are no more than the regulation of NY 861-2004 " eight kinds of elements such as lead, cadmium, chromium, mercury, selenium, arsenic, copper, zinc are limited the quantity of in grain (containing cereal, beans, potato class) and the goods " standard.
Embodiment 2:
The field trial place: San Mao town, Yangzhong City, Jiangsu Province belongs to the Changjiang river alluviation and becomes silted up native (folder sandy soil) middle fertility, the soil organic matter 2.4%, hydrolyzable nitrogen 106mg/kg, rapid available phosphorus 9.8 mg/kg, available potassium 85 mg/kg.
The confession rice of trying the water: rice varieties is a ripe late round-grained rice in the round-grained rice military 15, adopts to mould dish and throw and plant.
The production method of present embodiment organic Se-rich iron zinc nutrition enriched rice is seed selection, seedling, play field, rice transplanting, field management, harvesting, processing; The fertilizer that field management is executed is rich ferroselenium zinc organic and inorganic fertilizer; Divide and use for three times, and impose urea in good time, concrete service time and amount of application are:
(1) uses for the first time: before the arable land, use 30 kilograms of rich ferroselenium zinc organic and inorganic fertilizers earlier for every mu and make base manure;
(2) use for the second time: 20 kilograms of rich ferroselenium zinc organic and inorganic fertilizers are spread fertilizer over the fields as leaven every per mu sparing before broken upturned soil in the back, arable land;
(3) use for the third time: before rice tillering is put the field latter stage, use rich ferroselenium zinc organic and inorganic fertilizer as topdressing, amount of application is 40 kilograms every mu;
(4) impose urea in rice plant of tillering stage and panicle spike primordium differentiation stage respectively, consumption is respectively 8 kilograms every mu and 10 kilograms every mu.
The rich ferroselenium zinc of present embodiment organic and inorganic fertilizer is made up of the component of following parts by weight: 0.004 part of sodium selenite, 5 parts of Ferric Sodium Edetates, 0.25 part in zinc oxide; 3.6 parts of ammonium chlorides, 20.4 parts in urea, 8.5 parts of 5 parts of diammonium phosphate and superphosphate; 3.8 parts of 13 parts in potassium chloride and potassium dihydrogen phosphates; 0.03 part in poly-aspartic-acid potassium and 0.03 part in poly-aspartic-acid sodium are through 36 parts of the chicken manures of batch production fermentation maturity, 5 parts of rice hull ash.
Total amount of application of selenium in the present embodiment (in Se) is 2700 milligrams/mu, and total amount of application of selenite is 3600 milligrams/mu.
After using the rich ferroselenium organic and inorganic fertilizer of present embodiment, measure the total selenium content in the rice after the paddy rice ripe and harvested, assay method is according to GB/T 22499-2008 " rich selenium paddy "; Measure total iron-holder and zinc content in the rice, assay method is according to GB/T14609-2008 " the mensuration flame atomic absorption spectrometry of copper, iron, manganese, zinc, calcium, magnesium in grain and oil check cereal and the goods thereof ".
Through detect use the paddy rice maturation of rich ferroselenium organic and inorganic fertilizer after, the total Se content in every kilogram of rice is 0.15 ~ 0.30 milligram, 0.225 milligram of average out to reaches the selenium-rich rice standard; Total iron content in every kilogram of rice is 71.5 ~ 120.6 milligrams, 96.05 milligrams of average out to; Total zinc content in every kilogram of rice is 41. 5 ~ 52.3 milligrams; 46.9 milligrams of average out to are no more than the regulation of NY 861-2004 " eight kinds of elements such as lead, cadmium, chromium, mercury, selenium, arsenic, copper, zinc are limited the quantity of in grain (containing cereal, beans, potato class) and the goods " standard.
Embodiment 3:
Field trial place: the Huicheng District mouth of a river, Huizhou City, Guangdong Province town; Soil fertility is medium, soil organic matter average out to 20.14g/kg, the average 217.72mg/kg of soil nitrate nitrogen content; The average 39.39mg/kg of soil available phosphorus, soil available potassium average out to 91.39mg/kg.
The confession rice of trying the water: rice varieties is Huang Sizhan.
Fertilizer treatment is:
The fertilizer amount of table 2 different disposal
Handle |
Fertilizer and consumption thereof |
Contrast |
Use 100 kilograms of inorganic dedicated fertilizers for every mu |
The fertile contrast of rich selenium |
Use 100 kilograms of rich selenium organic and inorganic fertilizers for every mu |
Rich ferroselenium zinc is handled |
Use 100 kilograms of rich ferroselenium organic and inorganic fertilizers for every mu |
The production method of present embodiment organic Se-rich iron zinc nutrition enriched rice is seed selection, seedling, play field, rice transplanting, field management, harvesting, processing; The fertilizer that field management is executed is rich ferroselenium zinc organic and inorganic fertilizer; Before the arable land, use once, and impose urea in good time, concrete application process is:
(1) before the arable land, uses 100 kilograms of rich ferroselenium zinc organic and inorganic fertilizers for every mu and make base manure;
(2) impose urea in rice plant of tillering stage and panicle spike primordium differentiation stage respectively, consumption is respectively 5 kilograms every mu and 7 kilograms every mu;
The rich ferroselenium zinc of present embodiment organic and inorganic fertilizer is made up of following compositions in portion by weight: 0.008 part of potassium selenite, 3 parts in ferrous sulfate, 0.5 part in zinc sulphate; 14.6 parts of 16 parts in urea and ammonium chlorides, 12 parts of MAPs, 1.8 parts of 10.5 parts in potassium chloride and dipotassium hydrogen phosphates; 0.05 part of poly-aspartic-acid ammonium; Through 24.5 parts of the pig manures of batch production fermentation maturity and 10 parts of chicken manures, 4 parts of silicon potash fertilizers and 3.4 parts in flyash, 3.192 parts of attapulgites.
Above-mentioned substance contains according to weight percent meter: organic matter 20%, and purity nitrogen (N) 12%, phosphorus is (with P
2O
5Meter) 6%, potassium is (with K
2The O meter) 7%, selenium (in Se) 0.006 %, iron (in Fe) 0.51%, zinc (in Zn) 0.1% is processed rich ferroselenium zinc organic and inorganic fertilizer through granulating method.
Simultaneously, (purity nitrogen (N) 12%, phosphorus is (with P according to identical npk nutrient ratio
2O
5Meter) 6%, potassium is (with K
2The O meter) 7%, be mixed with inorganic dedicated fertilizer.
According to organic matter 20%, purity nitrogen (N) 12%, phosphorus is (with P
2O
5Meter) 6%, potassium is (with K
2The O meter) 7%, selenium (in Se) 0.006 % processes rich selenium organic and inorganic fertilizer through granulating method.
Total amount of application that the fertile and rich ferroselenium zinc of rich selenium is handled selenium (in Se) in the present embodiment is 6000 milligrams/mu, and total amount of application of selenite is 8000 milligrams/mu.
After the paddy rice ripe and harvested; Entrust Huizhou City, Guangdong Province agricultural product quality and safety supervision inspection center to measure the total selenium content in the rice; Assay method is according to GB/T 22499-2008 " rich selenium paddy "; Measure total iron-holder and zinc content in the rice, assay method is according to GB/T14609-2008 " the mensuration flame atomic absorption spectrometry of copper, iron, manganese, zinc, calcium, magnesium in grain and oil check cereal and the goods thereof ".
Through detecting:
Ferroselenium zinc content in the table 3 different disposal rice
Handle |
Se content (mg/kg) |
Iron content (mg/kg) |
Zinc content (mg/kg) |
Contrast |
0.06 |
27.21 |
12.46 |
The fertile contrast of rich selenium |
0.30 |
28.94 |
14.52 |
Rich ferroselenium zinc is handled |
0.29 |
111.70 |
53.10 |
Testing result show use rich selenium, iron, zinc organic and inorganic fertilizer after, can obviously improve total Se content of rice, total iron and total zinc content; Its total selenium and total zinc content are no more than the regulation of NY 861-2004 " eight kinds of elements such as lead, cadmium, chromium, mercury, selenium, arsenic, copper, zinc are limited the quantity of in grain (containing cereal, beans, potato class) and the goods " standard simultaneously.