CN110100554A - A kind of fertilizer application method reducing capsicum cadmium content - Google Patents

A kind of fertilizer application method reducing capsicum cadmium content Download PDF

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Publication number
CN110100554A
CN110100554A CN201910166859.2A CN201910166859A CN110100554A CN 110100554 A CN110100554 A CN 110100554A CN 201910166859 A CN201910166859 A CN 201910166859A CN 110100554 A CN110100554 A CN 110100554A
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mus
fertilizer
capsicum
application
amount
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李鑫
戴雄泽
马艳青
李雪峰
邹学校
刘峰
张竹青
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INST OF VEGETABLES HUNAN PROV
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INST OF VEGETABLES HUNAN PROV
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C21/00Methods of fertilising, sowing or planting
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00Cultivation of specific crops or plants not otherwise provided for
    • A01G22/05Fruit crops, e.g. strawberries, tomatoes or cucumbers
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B1/00Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/02Superphosphates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80Soil conditioners
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Botany (AREA)
  • Pest Control & Pesticides (AREA)
  • Fertilizers (AREA)

Abstract

The present invention relates to technical field of fertilizers, and in particular to a kind of fertilizing method for reducing capsicum cadmium content.Control dose are as follows: 29.4kg/ mus of purity nitrogen, pure phosphorus 9.6kg/ mus, pure potassium 40kg/ mus, pure calcium 17.7kg/ mus, 7kg/ mus of pure silicon, pure magnesium 1.75kg/ mus, pure boron 0.17kg/ mus;Fertilizing method are as follows: (1) site preparation and apply base manure;(2) urea is applied in four times;(3) potassium sulphate fertilizer is applied in four times;(4) alkalescent solubility in citric acid potash fertilizer is disposably applied with base manure;(5) potash humate is applied in three times;(6) calcium superphosphate is applied in three times;(7) calcium and magnesium siliceous fertilizer is disposably applied with base manure;(8) borax is applied in three times.The present invention adjusts the dosage and usage of fertilizer in the different times of chili growth process by science, prevents pollution of the heavy metal cadmium to capsicum, reduces the cadmium content in soil and pepper fruit, improves the quality and yield of capsicum.

Description

A kind of fertilizer application method reducing capsicum cadmium content
Technical field
The present invention relates to technical field of fertilizers, and in particular to a kind of fertilizer application method for reducing capsicum cadmium content.
Background technique
It being shown according to 2014 " national Soil Pollution Investigation bulletin ", China's soil environment situation totally allows of no optimist, Some areas soil pollution is heavier, and arable soil environmental quality causes anxiety.Wherein, Cadmium Pollutants On The Chinese point exceeding standard rate reaches 7.0%, is One of arable land, forest land, meadow and major pollutants of unused land.Cadmium is one of heavy metal " five poisonous creatures: scorpion, viper, centipede, house lizard, toad " element, has and decomposes week The features such as phase grows (half-life period is more than 20 years), mobility is big, toxicity is high, difficult to degrade, is easy to be absorbed by crops in production activity Enrichment, not only seriously affects the yield and quality of crop, but also can be detrimental to health by food chain in the accumulation of human body. In recent years, with China's industrial expansion, due to a large amount of applications of chemical fertilizer, pesticide, the agricultural use of industrial wastewater and sludge, with And the increasingly increase of heavy metal atmospheric sedimentation, the content of cadmium obviously increases in soil, and Cadmium Pollution in Soils situation is more serious.
Capsicum is a kind of important vegetable crop and food processing and the raw material of industry, and national year plantation amount is up to 30,000,000 Mu, cultivated area and economic value have surmounted cabbage as the first big vegetable crop, occupy act in the production of China vegetables The status of sufficient weight, and China, vegetable plot, some areas has that heavy metal cadmium is serious, it is raw to quality of vegetable and safety Generate extreme influence.
Summary of the invention
Against the above technical problems, the object of the present invention is to provide it is a kind of reduce capsicum cadmium content fertilizer application method, The dosage and usage that fertilizer in the different times of chili growth process is adjusted by science, prevent dirt of the heavy metal cadmium to capsicum Dye reduces the cadmium content in soil and pepper fruit, improves the quality and yield of capsicum, improves soil property and structure.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of fertilizing method reducing capsicum cadmium content, which is characterized in that control dose are as follows: 29.4kg/ mus of purity nitrogen, pure 9.6kg/ mus of phosphorus, pure potassium 40kg/ mus, pure calcium 17.7kg/ mus, 7kg/ mus of pure silicon, pure magnesium 1.75kg/ mus, pure boron 0.17kg/ mus; The wherein urea that nitrogenous fertilizer is nitrogenous 46%, amount of application are 64kg/ mus;Potash fertilizer is potassium sulfate containing potassium 51%, containing the weak of potassium 24% Alkaline solubility in citric acid potash fertilizer and the potash humate containing potassium 10%, it is rotten with+25% alkalescent solubility in citric acid potash fertilizer of 50% potassium sulfate+25% It grows sour potash fertilizer amount to apply, amount of application is respectively 39.2kg/ mus, 41.7kg/ mus and 100kg/ mus;The phosphorus excessively that phosphate fertilizer is phosphorous 16% Sour calcium, amount of application are 60kg/ mus;Calcareous fertilisers, siliceous fertilizer and fertiliser containing magnesium are calcic 30%, siliceous 20%, the calcium and magnesium siliceous fertilizer containing magnesium 5%, are applied Dosage is 35kg/ mus;Boron fertilizer is the borax of boracic 11%, and amount of application is 1.5kg/ mus;Fertilizing method are as follows: (1) site preparation and apply Base manure;(2) urea is applied in four times;(3) potassium sulphate fertilizer is applied in four times;(4) alkalescent solubility in citric acid potash fertilizer is disposable with base manure It applies;(5) potash humate is applied in three times;(6) calcium superphosphate is applied in three times;(7) calcium and magnesium siliceous fertilizer is disposably applied with base manure; (8) borax is applied in three times.
Further, the potash humate is faintly acid potash humate or alkalescent potash humate.
Further, the site preparation and base manure is applied are as follows: by 30kg/ mus of urea, 30kg/ mus of calcium superphosphate, potassium sulfate 19.2kg/ mus, 35kg/ mus of 70kg/ mus of potash humate, 41.7kg/ mus of alkalescent solubility in citric acid potash fertilizer and calcium and magnesium siliceous fertilizer mixing works For base manure, wherein 60-70% is mixed well withed the soil as base fertilizer, by remaining 30-40% and borax 0.5kg/ mu one after site preparation ridging It rises and applies in furrow.
Further, the ridging specifically: row spacing 30cm, high 20cm, the furrow width between two ridges is 20cm.
Further, the urea is applied in four times: being applied jointly before transplanting with other base manure for the first time, amount of application It is 30kg/ mus;10-15d is watered 100 times of pouring roots applications after transplanting for the second time, and amount of application is 8kg/ mus;Third time is opened in capsicum Florescence applies 18kg/ mus with secondary method again;8kg/ mus are applied again with secondary method in capsicum fruiting period 4th time.
Further, the potassium sulphate fertilizer is applied in four times: being applied before transplanting with other base manure jointly for the first time, is applied Dosage is 19.2kg/ mus;10-15d is watered 50 times of pouring roots applications after transplanting for the second time, and amount of application is 5kg/ mus;Third time exists Capsicum florescence sprays after being diluted with water to the solution that mass concentration is 3%, and amount of application is 5kg/ mus;4th time in capsicum result The method of phase third time applies 10kg/ mus again.
Further, the potash humate is applied in three times: apply jointly before transplanting with other base manure for the first time, Amount of application is 70kg/ mus;Foliage-spray after 10-15d is watered 1000 times after transplanting for the second time, amount of application are 10kg/ mus;Third Secondary ring is applied at from pepper plant 10-15cm after capsicum harvests for the first time, and is combined and irrigated, and amount of application is 20kg/ mus.
Further, the calcium superphosphate is applied in three times: being applied before transplanting with other base manure jointly for the first time, is applied Dosage is 30kg/ mus;It is sprayed after capsicum florescence is diluted with water to the solution that mass concentration is 0.8% for the second time, amount of application It is 15kg/ mus;Third time is applying 15kg/ mus with secondary method in capsicum fruiting period again.
Further, the borax is applied in three times: being applied jointly before transplanting with other base manure of 30-40% for the first time Enter in furrow, amount of application is 0.5kg/ mus;Second after the solution that capsicum florescence is diluted with water to that mass concentration is 0.2% Foliage-spray, 0.5kg/ mus of amount of application;7-10d applies 0.5kg/ mus with same procedure again after third time is applied at second.
Compared with prior art, the invention has the following beneficial effects:
(1) in the fertilizer and method of administration of the different growing stage selection different ratio of capsicum, it is adjustable the physics of soil Chemical property reduces soil hardening, and soil pH is made to tend to neutral, since cadmium ion is in water-soluble exchange state in acid soil, easily It is absorbed by plants generation murder by poisoning, cadmium ion can be passivated and lose dissolubility and biological effectiveness when soil pH is close to 7, soil Effective cadmium content is reduced in earth, so that absorption and accumulation of the capsicum to cadmium be effectively reduced, prevents fortune of the cadmium ion to pepper fruit It is defeated, reduce the cadmium content in pepper plant.
(2) the entire growth cycle of capsicum needs a large amount of potassium element, and potassium is the activator of a variety of enzymes in plant, with items Metabolic activity is closely related, and potassium improves capsicum to the resistance of heavy metal-polluted soil by promoting the synthesis of protein and the activity of enzyme, And it can be substantially reduced the validity of Cadmium in Soil, the ability for changing adsorption by soil cadmium and capsicum are to the uptake of cadmium.The present invention uses Three kinds of different potash fertilizer, that is, the inorganic potash fertilizer potassium sulfate for being easy to absorb, biologically active efficient organic potassic fertilizer potassium humate Fertilizer and the slow lasting alkalescent solubility in citric acid potash fertilizer of fertilizer efficiency.Three kinds of cooperations are added before transplanting and are used as base manure, can muchly be mentioned For potassium needed for chili growth, absorption and utilization convenient for capsicum to potassium in soil;In growth period, florescence and fruiting period point Do not apply different proportion and different amounts of three kinds of potash fertilizer not by several times, capsicum root growth and photosynthesis can be promoted, alleviate the poison of cadmium Evil effect, it is final to improve crop yield and quality.
(3) capsicum root growth can be promoted by applying calcium and magnesium siliceous fertilizer, make epidermal cell siliceousization, enhance capsicum root system and stalk Intensity, improve photosynthesis, reduce absorption to cadmium;It can be reduced the fixation of phosphate fertilizer in the soil, promote capsicum to nutrition member The Balance Absorption of element;Soil beneficial microorganism can be promoted to grow, improve soil acidification and hardened situation, increase soil aperture Degree, converts reference state and invalid state cadmium for exchange state and available Cd, to mitigate the pollution of heavy metal cadmium.Capsicum florescence Larger to result initial stage nitrogen demand, fruiting period potassium demand is larger, and florescence and fruiting period increase micronutrient boron respectively, according to peppery Demand of the green pepper different times to nutrient can be improved capsicum and nutrient is absorbed and utilized using the fertilizer application of different ratio, The increment for improving utilization rate of fertilizer and capsicum, improves the nutrition condition and the general level of the health of crop.
(4) capsicum cadmium pollution can be reduced after the fertilizer that uses of the present invention and fertilizing method use and improve soil fertilizer Power promotes the growth of capsicum, and process is simple and without secondary pollution, and the cadmium content in soil and pepper fruit has reduction, capsicum Yield and quality increase, in production have certain application value.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention, Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
Urea used in following embodiment, potassium sulfate, alkalescent solubility in citric acid potash fertilizer, potash humate, calcium superphosphate, Calcium and magnesium siliceous fertilizer, borax and pepper seed can be bought from conventional route.Peppery No. 1 capsicum variety of wrinkle line is won in selection, and mu plants 4500 Strain, capsicum topsoil Elemental characters are organic matter 0.78%, and full nitrogen 0.22%, available phosphorus 6.1mg/kg, effective potassium 58mg/kg delay Imitate K43 6mg/kg, pH6.6.
Embodiment 1
A kind of fertilizing method reducing capsicum cadmium content, which is characterized in that control dose are as follows: 29.4kg/ mus of purity nitrogen, pure 9.6kg/ mus of phosphorus, pure potassium 40kg/ mus, pure calcium 17.7kg/ mus, 7kg/ mus of pure silicon, pure magnesium 1.75kg/ mus, pure boron 0.17kg/ mus; The wherein urea that nitrogenous fertilizer is nitrogenous 46%, amount of application are 64kg/ mus;Potash fertilizer is potassium sulfate containing potassium 51%, containing the weak of potassium 24% Alkaline solubility in citric acid potash fertilizer and faintly acid potash humate containing potassium 10%, with+25% alkalescent solubility in citric acid potash fertilizer of 50% potassium sulfate+ 25% faintly acid potassium humate fertilizer amount applies, and amount of application is respectively 39.2kg/ mus, 41.7kg/ mus and 100kg/ mus;Phosphate fertilizer be containing The calcium superphosphate of phosphorus 16%, amount of application are 60kg/ mus;Calcareous fertilisers, siliceous fertilizer and fertiliser containing magnesium be calcic 30%, it is siliceous 20%, containing magnesium 5% Calcium and magnesium siliceous fertilizer, amount of application are 35kg/ mus;Boron fertilizer is the borax of boracic 11%, and amount of application is 1.5kg/ mus;Fertilizing method are as follows: (1) Site preparation simultaneously applies base manure;(2) urea is applied in four times;(3) potassium sulphate fertilizer is applied in four times;(4) alkalescent solubility in citric acid potash fertilizer with Base manure is disposably applied;(5) faintly acid potash humate is applied in three times;(6) calcium superphosphate is applied in three times;(7) calcium and magnesium siliceous fertilizer It is disposably applied with base manure;(8) borax is applied in three times.
The site preparation simultaneously applies base manure are as follows: by 30kg/ mus of urea, 30kg/ mus of calcium superphosphate, 19.2kg/ mus of potassium sulfate, weak 70kg/ mus of acid humus acid potash fertilizer, 41.7kg/ mus of alkalescent solubility in citric acid potash fertilizer and 35kg/ mus of calcium and magnesium siliceous fertilizer mixing are used as base manure, It wherein 60% mixing well withing the soil as base fertilizer, site preparation ridging, row spacing 30cm, high 20cm, the furrow width between two ridges is 20cm, Then 0.5kg/ mus of residue 40% and borax are applied in furrow together.
The urea is applied in four times: being applied jointly before transplanting with other base manure for the first time, amount of application 30kg/ Mu;10d is watered 100 times of pouring roots applications after transplanting for the second time, and amount of application is 8kg/ mus;Third time is in capsicum florescence with second Secondary method applies 18kg/ mus again;8kg/ mus are applied again with secondary method in capsicum fruiting period 4th time.
The potassium sulphate fertilizer is applied in four times: being applied jointly before transplanting with other base manure for the first time, amount of application is 19.2kg/ mus;10d is watered 50 times of pouring roots applications after transplanting for the second time, and amount of application is 5kg/ mus;Third time is in capsicum florescence It is sprayed after being diluted with water to the solution that mass concentration is 3%, amount of application is 5kg/ mus;4th time in capsicum fruiting period third time Method apply 10kg/ mus again.
The faintly acid potash humate is applied in three times: being applied before transplanting with other base manure jointly for the first time, is applied Dosage is 70kg/ mus;Foliage-spray after 10d is watered 1000 times after transplanting for the second time, amount of application are 10kg/ mus;Third time exists Ring is applied at from pepper plant 15cm after capsicum first time harvest, and is combined and irrigated, and amount of application is 20kg/ mus.
The calcium superphosphate is applied in three times: being applied jointly before transplanting with other base manure for the first time, amount of application is 30kg/ mus;It is sprayed after capsicum florescence is diluted with water to the solution that mass concentration is 0.8% for the second time, amount of application 15kg/ Mu;Third time is applying 15kg/ mus with secondary method in capsicum fruiting period again.
The borax is applied in three times: other base manure before transplanting with 40% apply in furrow jointly for the first time, apply Dosage is 0.5kg/ mus;Second of foliage-spray after capsicum florescence is diluted with water to the solution that mass concentration is 0.2%, is applied 0.5kg/ mus of dosage;7d applies 0.5kg/ mus with same procedure again after third time is applied at second.
Embodiment 2
A kind of fertilizing method reducing capsicum cadmium content, which is characterized in that control dose are as follows: 29.4kg/ mus of purity nitrogen, pure 9.6kg/ mus of phosphorus, pure potassium 40kg/ mus, pure calcium 17.7kg/ mus, 7kg/ mus of pure silicon, pure magnesium 1.75kg/ mus, pure boron 0.17kg/ mus; The wherein urea that nitrogenous fertilizer is nitrogenous 46%, amount of application are 64kg/ mus;Potash fertilizer is potassium sulfate containing potassium 51%, containing the weak of potassium 24% Alkaline solubility in citric acid potash fertilizer and alkalescent potash humate containing potassium 10%, with+25% alkalescent solubility in citric acid potash fertilizer of 50% potassium sulfate+ 25% alkalescent potassium humate fertilizer amount applies, and amount of application is respectively 39.2kg/ mus, 41.7kg/ mus and 100kg/ mus;Phosphate fertilizer be containing The calcium superphosphate of phosphorus 16%, amount of application are 60kg/ mus;Calcareous fertilisers, siliceous fertilizer and fertiliser containing magnesium be calcic 30%, it is siliceous 20%, containing magnesium 5% Calcium and magnesium siliceous fertilizer, amount of application are 35kg/ mus;Boron fertilizer is the borax of boracic 11%, and amount of application is 1.5kg/ mus;Fertilizing method are as follows: (1) Site preparation simultaneously applies base manure;(2) urea is applied in four times;(3) potassium sulphate fertilizer is applied in four times;(4) alkalescent solubility in citric acid potash fertilizer with Base manure is disposably applied;(5) alkalescent potash humate is applied in three times;(6) calcium superphosphate is applied in three times;(7) calcium and magnesium siliceous fertilizer It is disposably applied with base manure;(8) borax is applied in three times.
Further, the site preparation and base manure is applied are as follows: by 30kg/ mus of urea, 30kg/ mus of calcium superphosphate, potassium sulfate 19.2kg/ mus, 70kg/ mus of alkalescent potash humate, 41.7kg/ mus of alkalescent solubility in citric acid potash fertilizer and 35kg/ mus of calcium and magnesium siliceous fertilizer Mixing is used as base manure, wherein 60% mixes well withs the soil as base fertilizer, site preparation ridging, row spacing 30cm, high 20cm, and the ridge between two ridges Ditch width is 20cm, then applies 0.5kg/ mus of residue 40% and borax in furrow together.
The urea is applied in four times: being applied jointly before transplanting with other base manure for the first time, amount of application 30kg/ Mu;10d is watered 100 times of pouring roots applications after transplanting for the second time, and amount of application is 8kg/ mus;Third time is in capsicum florescence with second Secondary method applies 18kg/ mus again;8kg/ mus are applied again with secondary method in capsicum fruiting period 4th time.
The potassium sulphate fertilizer is applied in four times: being applied jointly before transplanting with other base manure for the first time, amount of application is 19.2kg/ mus;10d is watered 50 times of pouring roots applications after transplanting for the second time, and amount of application is 5kg/ mus;Third time is in capsicum florescence It is sprayed after being diluted with water to the solution that mass concentration is 3%, amount of application is 5kg/ mus;4th time in capsicum fruiting period third time Method apply 10kg/ mus again.
The alkalescent potash humate is applied in three times: being applied before transplanting with other base manure jointly for the first time, is applied Dosage is 70kg/ mus;Foliage-spray after 10d is watered 1000 times after transplanting for the second time, amount of application are 10kg/ mus;Third time exists Ring is applied at from pepper plant 15cm after capsicum first time harvest, and is combined and irrigated, and amount of application is 20kg/ mus.
The calcium superphosphate is applied in three times: being applied jointly before transplanting with other base manure for the first time, amount of application is 30kg/ mus;It is sprayed after capsicum florescence is diluted with water to the solution that mass concentration is 0.8% for the second time, amount of application 15kg/ Mu;Third time is applying 15kg/ mus with secondary method in capsicum fruiting period again.
The borax is applied in three times: other base manure before transplanting with 40% apply in furrow jointly for the first time, apply Dosage is 0.5kg/ mus;Second of foliage-spray after capsicum florescence is diluted with water to the solution that mass concentration is 0.2%, is applied 0.5kg/ mus of dosage;7d applies 0.5kg/ mus with same procedure again after third time is applied at second.
Embodiment 3
A kind of fertilizing method reducing capsicum cadmium content, which is characterized in that control dose are as follows: 29.4kg/ mus of purity nitrogen, pure 9.6kg/ mus of phosphorus, pure potassium 40kg/ mus, pure calcium 17.7kg/ mus, 7kg/ mus of pure silicon, pure magnesium 1.75kg/ mus, pure boron 0.17kg/ mus; The wherein urea that nitrogenous fertilizer is nitrogenous 46%, amount of application are 64kg/ mus;Potash fertilizer is potassium sulfate containing potassium 51%, containing the weak of potassium 24% Alkaline solubility in citric acid potash fertilizer and faintly acid potash humate containing potassium 10%, with+25% alkalescent solubility in citric acid potash fertilizer of 50% potassium sulfate+ 25% faintly acid potassium humate fertilizer amount applies, and amount of application is respectively 39.2kg/ mus, 41.7kg/ mus and 100kg/ mus;Phosphate fertilizer be containing The calcium superphosphate of phosphorus 16%, amount of application are 60kg/ mus;Calcareous fertilisers, siliceous fertilizer and fertiliser containing magnesium be calcic 30%, it is siliceous 20%, containing magnesium 5% Calcium and magnesium siliceous fertilizer, amount of application are 35kg/ mus;Boron fertilizer is the borax of boracic 11%, and amount of application is 1.5kg/ mus;Fertilizing method are as follows: (1) Site preparation simultaneously applies base manure;(2) urea is applied in four times;(3) potassium sulphate fertilizer is applied in four times;(4) alkalescent solubility in citric acid potash fertilizer with Base manure is disposably applied;(5) faintly acid potash humate is applied in three times;(6) calcium superphosphate is applied in three times;(7) calcium and magnesium siliceous fertilizer It is disposably applied with base manure;(8) borax is applied in three times.
The site preparation simultaneously applies base manure are as follows: by 30kg/ mus of urea, 30kg/ mus of calcium superphosphate, 19.2kg/ mus of potassium sulfate, weak 70kg/ mus of acid humus acid potash fertilizer, 41.7kg/ mus of alkalescent solubility in citric acid potash fertilizer and 35kg/ mus of calcium and magnesium siliceous fertilizer mixing are used as base manure, It wherein 70% mixing well withing the soil as base fertilizer, site preparation ridging, row spacing 30cm, high 20cm, the furrow width between two ridges is 20cm, Then 0.5kg/ mus of residue 30% and borax are applied in furrow together.
Further, the urea is applied in four times: being applied jointly before transplanting with other base manure for the first time, amount of application It is 30kg/ mus;15d is watered 100 times of pouring roots applications after transplanting for the second time, and amount of application is 8kg/ mus;Third time is bloomed in capsicum Phase applies 18kg/ mus with secondary method again;8kg/ mus are applied again with secondary method in capsicum fruiting period 4th time.
Further, the potassium sulphate fertilizer is applied in four times: being applied before transplanting with other base manure jointly for the first time, is applied Dosage is 19.2kg/ mus;15d is watered 50 times of pouring roots applications after transplanting for the second time, and amount of application is 5kg/ mus;Third time is in capsicum Florescence sprays after being diluted with water to the solution that mass concentration is 3%, and amount of application is 5kg/ mus;4th time in capsicum fruiting period use The method of third time applies 10kg/ mus again.
Further, the faintly acid potash humate is applied in three times: total with other base manure before transplanting for the first time With applying, amount of application is 70kg/ mus;Foliage-spray after 15d is watered 1000 times after transplanting for the second time, amount of application are 10kg/ mus; Third time ring at from pepper plant 10cm after capsicum harvests for the first time is applied, and is combined and irrigated, and amount of application is 20kg/ mus.
Further, the calcium superphosphate is applied in three times: being applied before transplanting with other base manure jointly for the first time, is applied Dosage is 30kg/ mus;It is sprayed after capsicum florescence is diluted with water to the solution that mass concentration is 0.8% for the second time, amount of application It is 15kg/ mus;Third time is applying 15kg/ mus with secondary method in capsicum fruiting period again.
Further, the borax is applied in three times: other base manure before transplanting with 30% apply jointly for the first time In furrow, amount of application is 0.5kg/ mus;Second of leaf after capsicum florescence is diluted with water to the solution that mass concentration is 0.2% Face sprays, and 0.5kg/ mus of amount of application;10d applies 0.5kg/ mus with same procedure again after third time is applied at second.
Embodiment 4
A kind of fertilizing method reducing capsicum cadmium content, which is characterized in that control dose are as follows: 29.4kg/ mus of purity nitrogen, pure 9.6kg/ mus of phosphorus, pure potassium 40kg/ mus, pure calcium 17.7kg/ mus, 7kg/ mus of pure silicon, pure magnesium 1.75kg/ mus, pure boron 0.17kg/ mus; The wherein urea that nitrogenous fertilizer is nitrogenous 46%, amount of application are 64kg/ mus;Potash fertilizer is potassium sulfate containing potassium 51%, containing the weak of potassium 24% Alkaline solubility in citric acid potash fertilizer and alkalescent potash humate containing potassium 10%, with+25% alkalescent solubility in citric acid potash fertilizer of 50% potassium sulfate+ 25% alkalescent potassium humate fertilizer amount applies, and amount of application is respectively 39.2kg/ mus, 41.7kg/ mus and 100kg/ mus;Phosphate fertilizer be containing The calcium superphosphate of phosphorus 16%, amount of application are 60kg/ mus;Calcareous fertilisers, siliceous fertilizer and fertiliser containing magnesium be calcic 30%, it is siliceous 20%, containing magnesium 5% Calcium and magnesium siliceous fertilizer, amount of application are 35kg/ mus;Boron fertilizer is the borax of boracic 11%, and amount of application is 1.5kg/ mus;Fertilizing method are as follows: (1) Site preparation simultaneously applies base manure;(2) urea is applied in four times;(3) potassium sulphate fertilizer is applied in four times;(4) alkalescent solubility in citric acid potash fertilizer with Base manure is disposably applied;(5) alkalescent potash humate is applied in three times;(6) calcium superphosphate is applied in three times;(7) calcium and magnesium siliceous fertilizer It is disposably applied with base manure;(8) borax is applied in three times.
The site preparation simultaneously applies base manure are as follows: by 30kg/ mus of urea, 30kg/ mus of calcium superphosphate, 19.2kg/ mus of potassium sulfate, weak Alkaline potash humate 70kg/ mus, 41.7kg/ mus of alkalescent solubility in citric acid potash fertilizer and 35kg/ mus of calcium and magnesium siliceous fertilizer mixing are used as base manure, It wherein 70% mixing well withing the soil as base fertilizer, site preparation ridging, row spacing 30cm, high 20cm, the furrow width between two ridges is 20cm, Then 0.5kg/ mus of residue 30% and borax are applied in furrow together.
The urea is applied in four times: being applied jointly before transplanting with other base manure for the first time, amount of application 30kg/ Mu;15d is watered 100 times of pouring roots applications after transplanting for the second time, and amount of application is 8kg/ mus;Third time is in capsicum florescence with second Secondary method applies 18kg/ mus again;8kg/ mus are applied again with secondary method in capsicum fruiting period 4th time.
The potassium sulphate fertilizer is applied in four times: being applied jointly before transplanting with other base manure for the first time, amount of application is 19.2kg/ mus;15d is watered 50 times of pouring roots applications after transplanting for the second time, and amount of application is 5kg/ mus;Third time is in capsicum florescence It is sprayed after being diluted with water to the solution that mass concentration is 3%, amount of application is 5kg/ mus;4th time in capsicum fruiting period third time Method apply 10kg/ mus again.
The alkalescent potash humate is applied in three times: being applied before transplanting with other base manure jointly for the first time, is applied Dosage is 70kg/ mus;Foliage-spray after 15d is watered 1000 times after transplanting for the second time, amount of application are 10kg/ mus;Third time exists Ring is applied at from pepper plant 10cm after capsicum first time harvest, and is combined and irrigated, and amount of application is 20kg/ mus.
The calcium superphosphate is applied in three times: being applied jointly before transplanting with other base manure for the first time, amount of application is 30kg/ mus;It is sprayed after capsicum florescence is diluted with water to the solution that mass concentration is 0.8% for the second time, amount of application 15kg/ Mu;Third time is applying 15kg/ mus with secondary method in capsicum fruiting period again.
The borax is applied in three times: other base manure before transplanting with 30% apply in furrow jointly for the first time, apply Dosage is 0.5kg/ mus;Second of foliage-spray after capsicum florescence is diluted with water to the solution that mass concentration is 0.2%, is applied 0.5kg/ mus of dosage;10d applies 0.5kg/ mus with same procedure again after third time is applied at second.
Comparative example 1 is capsicum conventional fertilizer application technology.
Comparative example 2 is the difference from embodiment 1 is that potash fertilizer all applies potassium sulfate.
Comparative example 3 is the difference from embodiment 1 is that potash fertilizer all applies solubility in citric acid potash fertilizer.
Comparative example 4 is the difference from embodiment 1 is that potash fertilizer all applies potash humate.
Comparative example 5 is the difference from embodiment 1 is that 50% potassium sulfate of Potassium Fertilizer and 50% solubility in citric acid potash fertilizer.
Comparative example 6 is the difference from embodiment 1 is that 50% potassium sulfate of Potassium Fertilizer and 50% potash humate.
The difference of comparative example 7 and experimental example 1 is 50% solubility in citric acid potash fertilizer of Potassium Fertilizer and 50% potash humate.
Initially total cadmium content is 2mg/kg to sample plot soil, and effective cadmium content is 0.47mg/kg.During chili growth All data is measured, as a result heavy metal cadmium content sample presentation detection in soil and pepper fruit records such as following table.
Soil data and the variation of pepper fruit cadmium content under 1 Different Fertilization technology of table
From the data in table 1, it can be seen that soil pH is low under capsicum conventional fertilizer application technology, acidification is serious, the total cadmium of soil under acid condition Content and effective cadmium content are very high, cause cadmium content in pepper fruit also higher, are unfavorable for eating, and the soil weight is big, hole Rate is low, and soil hardening is serious.Only application potassium sulphate fertilizer can reduce soil pH, and other physical and chemical characters of soil and pepper fruit Cadmium content and conventional fertilization method are without significant difference.Only application solubility in citric acid potash fertilizer can significantly improve soil pH, reduce soil and peppery The cadmium content of green pepper fruit, but soil hardening situation is not improved.Only application potash humate can also significantly improve soil pH, and The soil weight is reduced, improves soil porosity, soil and pepper fruit cadmium content are significantly reduced.Comparative example 5,6,7 makes respectively It is combined with two kinds of potash fertilizer, wherein the effect of the raising of comparative example 6 soil pH is unobvious, and comparative example 7 reduces pepper fruit cadmium content effect Fruit is significant.The effect of above 7 comparative examples is worse than three kinds of potash fertilizer in embodiment and is administered in combination, wherein embodiment 1-4 tables of data The effect of bright alkalescent potash humate is higher than faintly acid potash humate, and base manure is divided into 70% and 30% application effect and is better than 60% and 40%.
The Agronomic trait and change of production of capsicum under 2 Different Fertilization technology of table
Quality of Capsicum changes under 3 Different Fertilization technology of table
By upper table data it is found that comparative example 2, which only applies potassium sulfate as potash fertilizer and conventional fertilization method, handles lower capsicum Agronomic trait, yield and quality variation are without significant difference;Since solubility in citric acid potash fertilizer is insoluble in water, belong to slow-release fertilizer, comparative example 3 Only application solubility in citric acid potash fertilizer is unable to satisfy capsicum to the demand of potassium element, is unfavorable for the growth and development of capsicum;4 humic of comparative example Sour effect of potassium fertilizer is moderate and is rich in organic matter, can be obviously promoted chili growth, improve yield of hot pepper and quality.By comparative example 5-7 Known to any two kinds of potash fertilizer compounding applications have some improvement capsicum plant character, the effect that improves the yield and quality, 50% solubility in citric acid potassium fertilizer application, the 50% potash humate effect of middle comparative example 7 is preferable, but three kinds of potash fertilizer are applied in embodiment 1-4 The facilitation effect of chili growth development is above in comparative example 2-7 and applies one or two kinds of potash fertilizer.
In conclusion the present invention adjusts the dosage and usage of fertilizer in the different times of chili growth process by science, It realizes heavy metal cadmium prevention and control to combine with agronomy irrigation and fertilization measurement, improves soil property and structure, improve soil pH and soil Earth porosity reduces the soil weight, prevents pollution of the heavy metal cadmium to capsicum, promotes the accumulation of capsicum biomass, to reduce Cadmium content in soil and pepper fruit improves the quality and yield of capsicum.After fertilizer and fertilizing method of the invention, soil Total cadmium and effective cadmium content in earth significantly reduce, and the cadmium content in the edible position fruit of capsicum is significantly reduced.It is peppery Plant height, stem thickness, leaf area, single fruit weight and the per mu yield of green pepper have increase, vitamin C in pepper fruit, soluble sugar and solvable The content of property albumen is also improved.

Claims (9)

1. a kind of fertilizing method for reducing capsicum cadmium content, which is characterized in that control dose are as follows: 29.4kg/ mus of purity nitrogen, pure phosphorus 9.6kg/ mus, pure potassium 40kg/ mus, pure calcium 17.7kg/ mus, 7kg/ mus of pure silicon, pure magnesium 1.75kg/ mus, pure boron 0.17kg/ mus;Its The urea that middle nitrogenous fertilizer is nitrogenous 46%, amount of application are 64kg/ mus;Potash fertilizer is the potassium sulfate containing potassium 51%, the weak base containing potassium 24% Property solubility in citric acid potash fertilizer and the potash humate containing potassium 10%, with+25% humic of+25% alkalescent solubility in citric acid potash fertilizer of 50% potassium sulfate Sour potash fertilizer amount applies, and amount of application is respectively 39.2kg/ mus, 41.7kg/ mus and 100kg/ mus;The peroxophosphoric acid that phosphate fertilizer is phosphorous 16% Calcium, amount of application are 60kg/ mus;Calcareous fertilisers, siliceous fertilizer and fertiliser containing magnesium are calcic 30%, siliceous 20%, the calcium and magnesium siliceous fertilizer containing magnesium 5%, application Amount is 35kg/ mus;Boron fertilizer is the borax of boracic 11%, and amount of application is 1.5kg/ mus;Fertilizing method are as follows: (1) site preparation and apply base Fertilizer;(2) urea is applied in four times;(3) potassium sulphate fertilizer is applied in four times;(4) alkalescent solubility in citric acid potash fertilizer is disposably applied with base manure; (5) potash humate is applied in three times;(6) calcium superphosphate is applied in three times;(7) calcium and magnesium siliceous fertilizer is disposably applied with base manure;(8) boron Sand is applied in three times.
2. a kind of fertilizing method for reducing capsicum cadmium content according to claim 1, which is characterized in that the potassium humate Fertilizer is faintly acid potash humate or alkalescent potash humate.
3. a kind of fertilizing method for reducing capsicum cadmium content according to claim 1, which is characterized in that the site preparation is simultaneously applied With base manure are as follows: by 30kg/ mus of urea, 30kg/ mus of calcium superphosphate, 19.2kg/ mus of potassium sulfate, 70kg/ mus of potash humate, weak base Property 41.7kg/ mus of solubility in citric acid potash fertilizer and 35kg/ mu of calcium and magnesium siliceous fertilizer mixing be used as base manure, wherein the 60-70% of base manure quality with it is native Earth, which mixes, is used as base fertilizer, applies 0.5kg/ mus of remaining 30-40% and borax in furrow together after site preparation ridging.
4. a kind of fertilizing method for reducing capsicum cadmium content according to claim 3, which is characterized in that the ridging is specific Are as follows: row spacing 30cm, high 20cm, the furrow width between two ridges is 20cm.
5. a kind of fertilizing method for reducing capsicum cadmium content according to claim 1, which is characterized in that the urea point Four applications: applying before transplanting with other base manure jointly for the first time, and amount of application is 30kg/ mus;Second of 10- after transplanting 15d is watered 100 times of pouring root applications, and amount of application is 8kg/ mus;Third time is applied in capsicum florescence with secondary method again 18kg/ mus;8kg/ mus are applied again with secondary method in capsicum fruiting period 4th time.
6. a kind of fertilizing method for reducing capsicum cadmium content according to claim 1, which is characterized in that the potassium sulfate Fertilizer is applied in four times: being applied jointly before transplanting with other base manure for the first time, amount of application is 19.2kg/ mus;It is transplanting for the second time 10-15d is watered 50 times of pouring root applications afterwards, and amount of application is 5kg/ mus;Third time is diluted with water to mass concentration in capsicum florescence To spray after 3% solution, amount of application is 5kg/ mus;4th method in capsicum fruiting period third time applies 10kg/ again Mu.
7. a kind of fertilizing method for reducing capsicum cadmium content according to claim 1, which is characterized in that the humic acid Potash fertilizer is applied in three times: being applied jointly before transplanting with other base manure for the first time, amount of application is 70kg/ mus;It is transplanting for the second time Foliage-spray after 10-15d is watered 1000 times afterwards, amount of application are 10kg/ mus;Third time is after capsicum harvests for the first time from capsicum Ring is applied at plant 10-15cm, and is combined and irrigated, and amount of application is 20kg/ mus.
8. a kind of fertilizing method for reducing capsicum cadmium content according to claim 1, which is characterized in that the peroxophosphoric acid Calcium is applied in three times: being applied jointly before transplanting with other base manure for the first time, amount of application is 30kg/ mus;It is opened for the second time in capsicum Florescence sprays after being diluted with water to the solution that mass concentration is 0.8%, and amount of application is 15kg/ mus;Third time is in capsicum fruiting period 15kg/ mus are being applied again with secondary method.
9. a kind of fertilizing method for reducing capsicum cadmium content according to claim 1, which is characterized in that the borax point It applies: being applied in furrow jointly before transplanting with the 30-40% of base manure quality for the first time three times, amount of application is 0.5kg/ mus;The The secondary foliage-spray after capsicum florescence is diluted with water to the solution that mass concentration is 0.2%, 0.5kg/ mus of amount of application;Third The secondary 7-10d after second of application applies 0.5kg/ mus with same procedure again.
CN201910166859.2A 2019-03-06 2019-03-06 A kind of fertilizer application method reducing capsicum cadmium content Pending CN110100554A (en)

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