CN104140322B - Semen Caryae Cathayensis soil acidification modifying agent and preparation method and application - Google Patents
Semen Caryae Cathayensis soil acidification modifying agent and preparation method and application Download PDFInfo
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- CN104140322B CN104140322B CN201410364202.4A CN201410364202A CN104140322B CN 104140322 B CN104140322 B CN 104140322B CN 201410364202 A CN201410364202 A CN 201410364202A CN 104140322 B CN104140322 B CN 104140322B
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Abstract
The invention discloses a kind of Semen Caryae Cathayensis soil acidification modifying agent, with parts by weight, consisting of of active component: calcium cyanamide 100 parts; 15～30 parts of carbamide; Dolomite dust 23～45 parts; Calcium oxide 23～45 parts; Magnesium oxide 8～23 parts; Trace element 8～23 parts. The calcium cyanamide of above-mentioned Optimum ratio, carbamide and dolomite dust are combined, Semen Caryae Cathayensis soil acidification situation can not only be improved, alleviate the soil fertility obstacle that soil acidification is derivative, control the soil-borne disease because soil acidification causes, also supplement the calcium ion in soil simultaneously, alleviate the calcium ion leaching phenomenon because soil acidification causes. The invention also discloses the preparation method of a kind of Semen Caryae Cathayensis soil acidification modifying agent and the method utilizing described modifying agent to repair Semen Caryae Cathayensis acidified soil. Rate of fertilizer can be greatly reduced by the method for above-mentioned reparation Semen Caryae Cathayensis acidified soil, root, improve the acidification phenomenon of Semen Caryae Cathayensis soil, the reparation of acidified soil can be realized cost-effectively, and significantly improve the yield of Semen Caryae Cathayensis.
Description
Technical field
The present invention relates to soil improvement and ecological restoration technical field, particularly relate to a kind of Semen Caryae Cathayensis soil acidification modifying agent and preparation method thereof, and utilize the method that this Semen Caryae Cathayensis soil acidification modifying agent carries out soil remediation.
Background technology
During Chinese walnut essentialspecies is implanted in-soil grown of upper Cambrian system and the shale of Sinian system, carbonaceous and dolomitic limestone and calcareous shale etc. in, like limestone soil, suitable planting is in the soil that soil pH value is 5.5-7.2. In recent years, along with the raising of Semen Caryae Cathayensis economic worth, the price of Semen Caryae Cathayensis is up to 100～160 yuan/kg. In order to obtain higher yield and economic benefit, orchard workers generally use substantial amounts of inorganic composite fertilizer and carbamide, cause Semen Caryae Cathayensis timbered soil that serious acidification phenomenon occurs, soil pH value is decreased obviously, and causes Semen Caryae Cathayensis shedding serious, also with the disease such as serious root rot and dry rot, cause the decline of yield and quality, now for improving yield again, orchard workers may proceed to improve the amount of application of fertilizer, ultimately forms vicious cycle. Showing according to overall survey of soil data, from nineteen eighty-two to 2010, Semen Caryae Cathayensis timbered soil pH value is down to 4.7 from 7.3; Soil exchangeable acidity rises to 2.74 from 0.07, improves 39 times;Degree of base saturation is down to 70.49% from 99.29%, and fall reaches 28.8%. So, the research and development of the modifying agent of acidified soil become particularly important.
At present, focus primarily upon the acidity changing soil both at home and abroad about the research of acidified soil conditioner, by the soil of slant acidity by liming or agstone, improve soil pH value, make acidified soil reach the effect of improvement.
" plant nutrient and fertilizer journal " the 5th volume the 2nd phase the 129th page of blessing in the Meng, Fu Qinglin in 1999 etc. " impact on soil exchangeable calcium, magnesium and soil aciditiy of the Middle Part of Zhejiang red soil liming " report by monitoring liming to soil exchangeable Ca2+、Mg2+With the change of soil aciditiy, verified the process of the multiple acidifying of the movement in soil profile and soil.
The Chinese patent literature that publication number is CN101445730A discloses a kind of soil structure conditioner for red-yellow soil; it is that carbonization rice husk, edible fungi, dead meal, Calx, bran coat configuration proportion by weight is 10: 0～7: 1～3: 0～3 with Calx, carbonization rice husk, waste edible fungus rejected material, bran coat for active component formulated irregular solid particle mixture.
Certainly, also there is other kinds of modifying agent, the Chinese patent literature that publication number is CN102503728A discloses a kind of modifier for acidized bamboo soil, formulated with lime nitrogen, biomass carbon, calcium oxide, magnesium oxide and trace element for active component, obtain the acidifying modifying agent of bamboo sprout soil, this modifying agent, based on lime nitrogen and biomass carbon, is equipped with medium trace element, it is possible to administer, repair the acidification of bamboo sprout.
Although, research about soil acidification modifying agent and reparation improving technology thereof is more, but there is no the complex repairation agent of the multi-efficiencies such as the derivative soil fertility obstruction recovery of the conditioner for acidified soil for Semen Caryae Cathayensis and soil acidification and soil-borne disease control at present, and conditioner for acidified soil is to reduce soil aciditiy for main purpose at present, the soil conditioner amount of application of unit are is tens tons/hectare, uses cost and labour force is bigger. It addition, the effect of current soil conditioner and function singleness, the soil acidification exist soil and derivative soil fertility obstacle and soil-borne disease problem thereof lack comprehensive control function; Existing conditioner for acidified soil does not also carry out resistance control soil acidification origin, causes the present situation cured the symptoms, not the disease.
Summary of the invention
It is an object of the invention to provide and a kind of can improve soil acidification situation, alleviate the derivative soil fertility obstacle of soil acidification and control the Semen Caryae Cathayensis soil acidification modifying agent of soil-borne disease.
The present invention provides a kind of Semen Caryae Cathayensis soil acidification modifying agent, with parts by weight, consisting of of active component: calcium cyanamide 100 parts; 15～30 parts of carbamide; Dolomite dust 23～45 parts; Calcium oxide 23～45 parts; Magnesium oxide 8～23 parts; Trace element 8～23 parts.
In above-mentioned Semen Caryae Cathayensis soil acidification modifying agent, calcium cyanamide is commonly called as lime nitrogen, be nitrogen fertilizer is also efficient soil sterilants, can prevent and treat soil-borne disease, and this calcium cyanamide is applicable to acid ground, can be used for improving soil acidification; Dolomite dust is the natural double salt of calcium carbonate and magnesium carbonate, can not only improve acid ground, also can provide magnesium elements and calcium constituent for soil, improves the yield of Semen Caryae Cathayensis. Each component in above-mentioned modifying agent and the proportioning of each component, determined by lot of experiments, both the improvement of Semen Caryae Cathayensis acid ground can have been realized, the soil fertility obstacle that soil acidification is derivative can be alleviated again, improve Semen Caryae Cathayensis soil fertility, improve the yield of Semen Caryae Cathayensis, also can control the soil-borne disease in Semen Caryae Cathayensis.
For suitable planting Chinese walnut in the soil that calcium content is high, in its acidization, pH value can be gradually lowered, thus the Ca increased in the soil liquid2+Leaching, cause commutativity Ca2+The minimizing of amount, and Ca2+Irrational leaching may result in again the continuation of soil pH value and declines, and makes subalkaline soil be increasingly becoming acid ground, and makes commutativity H in soil+、AL3+Amount improves, and makes exchangeable basic cations reduce, causes soil degree of base saturation to decline.The present invention adopt the calcium cyanamide agent of suitable proportion, carbamide and dolomite dust can realize sterilization, in and H+ while, supply soil in disappearance Ca2+Content, reduces calcium leaching, improves soil degree of base saturation, substantially increases modifying agent effect on the soil fertility obstacle that improvement soil acidification situation, alleviation soil acidification derive.
As preferably, described trace element is at least one in sodium borate, zinc sulfate, manganese carbonate, copper sulfate, more preferably two or more.
As preferably, Semen Caryae Cathayensis soil acidification modifying agent, with parts by weight, consisting of of active component: calcium cyanamide 100 parts; 15～25 parts of carbamide; Dolomite dust 30～40 parts; Calcium oxide 30 parts; Magnesium oxide 15 parts; Trace element 20 parts. Find through lot of experiments, the improved effect of Semen Caryae Cathayensis soil acidification modifying agent prepared by above-mentioned active component ratio range is more preferably, can make pH value is 4.5, the pH value that exchange acidity is the former Semen Caryae Cathayensis timbered soil (soil depth is 20～30cm) of 6.9cmol/kg is increased to 6.8～7.5, and exchange acidity is reduced to 0.05～0.07cmol/kg.
Further, Semen Caryae Cathayensis soil acidification modifying agent, with parts by weight, consisting of of active component: calcium cyanamide 100 parts; 20 parts of carbamide; Dolomite dust 35 parts; Calcium oxide 30 parts; Magnesium oxide 15 parts; Trace element 20 parts. The improved effect of Semen Caryae Cathayensis soil acidification modifying agent prepared by above-mentioned active component ratio range is best, can make pH value is 4.5, the pH value that exchange acidity is the former timbered soil (soil depth is 20～30cm) of 6.9cmol/kg is increased to 7.5, and exchange acidity is reduced to 0.05cmol/kg.
Modifying agent size can affect time and the effect of soil absorption modifying agent, and the granule of excessive particle diameter can extend the soak time of soil, reduces assimilation effect, and as preferably, Semen Caryae Cathayensis soil acidification modifying agent adopts diameter to be the granule of 2～5mm. Wherein, it is further preferable that Semen Caryae Cathayensis soil acidification modifying agent adopts diameter to be the granule of 3.5mm.
The preparation method that the present invention also provides for a kind of described Semen Caryae Cathayensis soil acidification modifying agent, including after all active component mix homogeneously, obtaining through pelletize. The method of described pelletize can adopt prilling process conventional in prior art, and such as mist projection granulating, disc granulation etc., wherein, as preferably, the present invention adopts disc granulation method. In granulation process, above-mentioned active component need to mix with binding agent, described binding agent can adopt all kinds of typical binders of the prior art, as preferably, the present invention is using water as binding agent, owing in the modifying agent after pelletize of the present invention, the content of water is less, and the application effect of modifying agent be there is no substantial effect, therefore the active component of modifying agent does not comprise above-mentioned water.
The present invention also provides for a kind of method repairing Semen Caryae Cathayensis acidified soil, including in the circular groove described Semen Caryae Cathayensis soil acidification modifying agent being applied Semen Caryae Cathayensis tree root surrounding diameter to be 1.2～1.3m, the degree of depth be 20～30cm, described Semen Caryae Cathayensis soil acidification modifying agent is individually used, or with Semen Caryae Cathayensis special fertilizer compounding application.
Considering the feature of Semen Caryae Cathayensis Root Distribution, Semen Caryae Cathayensis soil acidification modifying agent is applied in the soil layer that the degree of depth is 20～30cm by the inventive method, within the scope of this, and can facilitation to Semen Caryae Cathayensis growth after more effective performance soil improvement.
The amount of application of Semen Caryae Cathayensis soil acidification modifying agent and soil pH value have very big relation, and as preferably, when ranging for [4～4.55] of soil pH value, amount of application is 0.75～1.05t/hm2;Soil pH value range for [3.5～4) time, amount of application is 1.2～1.35t/hm2。
Measure soil pH value time generally can in the site of administration of Semen Caryae Cathayensis soil acidification modifying agent, as soil depth be 20～30cm place measure. Under the scope of other pH value, grow unsuitable for Semen Caryae Cathayensis, and improvement cost significantly improves.
As preferably, described Semen Caryae Cathayensis special fertilizer, by weight, including following effective ingredient: N100 part, P2O547～87 parts, K2O71～100 part.
As preferably, during the special nutriment in a fertilizer spring fertilizer of described Semen Caryae Cathayensis, winter top dressing secondary are manured into soil, each dose is 0.90～1.20t/hm2。
Compared with prior art, the method have the advantages that
(1) calcium cyanamide of Optimum ratio, carbamide and dolomite dust are combined by the present invention, Semen Caryae Cathayensis soil acidification situation can not only be improved, alleviate the soil fertility obstacle that soil acidification is derivative, control the soil-borne disease because soil acidification causes, also supplement the calcium ion in soil simultaneously, alleviate the calcium ion leaching phenomenon because soil acidification causes.
(2) present invention is by Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer compounding application, compared with traditional fertilization, greatly reduce rate of fertilizer, the acidification phenomenon of Semen Caryae Cathayensis soil is improved root, the reparation of acidified soil can be realized cost-effectively, and significantly improve the yield of Semen Caryae Cathayensis.
Detailed description of the invention
Embodiment 1
Weigh calcium cyanamide 100kg, carbamide 15kg, dolomite dust 23kg, calcium oxide 23kg, magnesium oxide 8kg, sodium borate 3kg and zinc sulfate 5kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 2mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.0. Being applied in the Semen Caryae Cathayensis forest land of soil acidification by above-mentioned Semen Caryae Cathayensis soil acidification modifying agent, the pH value of this timbered soil (soil depth is 20～30cm) is 4.5, and exchange acidity is 6.9cmol/kg, belongs to strongly acidic soil. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent is applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 20～30cm, and amount of application is 0.75t/hm2, time of application is early November. Second Year JIUYUE sampling analysis, the pH value of soil (soil depth is 20～30cm) is 6.3, and exchange acidity is 0.10cmol/kg.
Embodiment 2
Weigh calcium cyanamide 100kg, carbamide 30kg, dolomite dust 45kg, calcium oxide 45kg, magnesium oxide 23kg, sodium borate 6kg, zinc sulfate 8kg, manganese carbonate 5kg and copper sulfate 4kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 5mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.8. Being applied in the Semen Caryae Cathayensis forest land of soil acidification by above-mentioned Semen Caryae Cathayensis soil acidification modifying agent, the pH value of this timbered soil (soil depth is 20～30cm) is 4.5, and exchange acidity is 6.9cmol/kg, belongs to strongly acidic soil. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent is applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 20～30cm, and amount of application is 1.05t/hm2, time of application is early November. Second Year JIUYUE sampling analysis, the pH value of soil (soil depth is 20～30cm) is 6.6, and exchange acidity is 0.09cmol/kg.
Embodiment 3
Weigh calcium cyanamide 100kg, carbamide 15kg, dolomite dust 30kg, calcium oxide 30kg, magnesium oxide 15kg, sodium borate 5kg, zinc sulfate 7kg, manganese carbonate 5kg and copper sulfate 3kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 3.5mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.5. Being applied in the Semen Caryae Cathayensis forest land of soil acidification by above-mentioned Semen Caryae Cathayensis soil acidification modifying agent, the pH value of this timbered soil (soil depth is 20～30cm) is 4.5, and exchange acidity is 6.9cmol/kg, belongs to strongly acidic soil. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent is applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 20～30cm, and amount of application is 0.85t/hm2, time of application is early November. Second Year JIUYUE sampling analysis, the pH value of soil (soil depth is 20～30cm) is 7.1, and exchange acidity is 0.06cmol/kg.
Embodiment 4
Weigh calcium cyanamide 100kg, carbamide 25kg, dolomite dust 40kg, calcium oxide 30kg, magnesium oxide 15kg, sodium borate 5kg, zinc sulfate 7kg, manganese carbonate 5kg, copper sulfate 3kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 3.5mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.5. Being applied in the Semen Caryae Cathayensis forest land of soil acidification by above-mentioned Semen Caryae Cathayensis soil acidification modifying agent, the pH value of this timbered soil (soil depth is 20～30cm) is 4.5, and exchange acidity is 6.9cmol/kg, belongs to strongly acidic soil. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent is applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 20～30cm, and amount of application is 0.95t/hm2, time of application is early November. Second Year JIUYUE sampling analysis, the pH value of soil (soil depth is 20～30cm) is 6.8, and exchange acidity is 0.07cmol/kg.
Embodiment 5
Weigh calcium cyanamide 100kg, carbamide 20kg, dolomite dust 35kg, calcium oxide 30kg, magnesium oxide 15kg, sodium borate 5kg, zinc sulfate 7kg, manganese carbonate 5kg, copper sulfate 3kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 3.5mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.5. Being applied in the Semen Caryae Cathayensis forest land of soil acidification by above-mentioned Semen Caryae Cathayensis soil acidification modifying agent, the pH value of this timbered soil (soil depth is 20～30cm) is 4.5, and exchange acidity is 6.9cmol/kg, belongs to strongly acidic soil. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent is applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 20～30cm, and amount of application is 0.90t/hm2, time of application is early November. Second Year JIUYUE sampling analysis, the pH value of soil (soil depth is 20～30cm) is 7.5, and exchange acidity is 0.05cmol/kg.
Comparative example 1
Weigh calcium cyanamide 100kg, carbamide 10kg, dolomite dust 15kg, calcium oxide 50kg, magnesium oxide 8kg, sodium borate 5kg, zinc sulfate 7kg, manganese carbonate 5kg, copper sulfate 3kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 3.5mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.5.Being applied in the Semen Caryae Cathayensis forest land of soil acidification by above-mentioned Semen Caryae Cathayensis soil acidification modifying agent, the pH value of this timbered soil (soil depth is 20～30cm) is 4.5, and exchange acidity is 6.9cmol/kg, belongs to strongly acidic soil. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent is applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 0～10cm, and amount of application is 0.90t/hm2, time of application is early November. Second Year JIUYUE sampling analysis, the pH value of soil (soil depth is 20～30cm) is 5.5, and exchange acidity is 1.05cmol/kg.
Comparative example 2
Weigh calcium cyanamide 100kg, carbamide 50kg, dolomite dust 55kg, calcium oxide 20kg, magnesium oxide 35kg, sodium borate 5kg, zinc sulfate 7kg, manganese carbonate 5kg, copper sulfate 3kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 10mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.5. Being applied in the Semen Caryae Cathayensis forest land of soil acidification by above-mentioned Semen Caryae Cathayensis soil acidification modifying agent, the pH value of this timbered soil (soil depth is 20～30cm) is 4.5, and exchange acidity is 6.9cmol/kg, belongs to strongly acidic soil. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent is applied Semen Caryae Cathayensis tree root surrounding diameter is 0.9～1.0m, and the degree of depth is in the circular groove of 30～40cm, and amount of application is 1.90t/hm2, time of application is early November. Second Year JIUYUE sampling analysis, the pH value of soil (soil depth is 20～30cm) is 4.9, and exchange acidity is 1.85cmol/kg.
Comparative example 3
Weigh calcium cyanamide 100kg, carbamide 50kg, dolomite dust 55kg, calcium oxide 20kg, magnesium oxide 35kg, sodium borate 5kg, zinc sulfate 7kg, manganese carbonate 5kg, copper sulfate 3kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 2.5mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.5. Being applied in the Semen Caryae Cathayensis forest land of soil acidification by above-mentioned Semen Caryae Cathayensis soil acidification modifying agent, the pH value of this timbered soil (soil depth is 20～30cm) is 4.5, and exchange acidity is 6.9cmol/kg, belongs to strongly acidic soil. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent is applied Semen Caryae Cathayensis tree root surrounding diameter is 1.4～1.5m, and the degree of depth is in the circular groove of 10～20cm, and amount of application is 0.60t/hm2, time of application is early November. Second Year JIUYUE sampling analysis, the pH value of soil (soil depth is 20～30cm) is 5.3, and exchange acidity is 1.55cmol/kg.
Comparative example 4
Weigh lime nitrogen 55kg respectively; biomass carbon 25kg; calcium oxide 10kg; magnesium oxide 5kg, boric acid 2kg and zinc sulfate 3kg, put into successively by it in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously, and by the irregular particle of the prepared 2.5mm particle diameter of disc spray comminutor, i.e. soil acidification modifying agent of the prior art. Being applied in the Semen Caryae Cathayensis forest land of soil acidification by above-mentioned soil acidification modifying agent of the prior art, the pH value of this timbered soil (soil depth is 20～30cm) is 4.5, and exchange acidity is 6.9cmol/kg, belongs to strongly acidic soil. It is 1.2～1.3m that above-mentioned soil acidification modifying agent applies Semen Caryae Cathayensis tree root surrounding diameter, and the degree of depth is in the circular groove of 20～30cm, and amount of application is 0.90t/hm2, time of application is early November.Second Year JIUYUE sampling analysis, the pH value of soil (soil depth is 20～30cm) is 6.0, and exchange acidity is 0.95cmol/kg.
Embodiment 6
Weigh calcium cyanamide 100kg, carbamide 20kg, dolomite dust 35kg, calcium oxide 30kg, magnesium oxide 15kg, sodium borate 5kg, zinc sulfate 7kg, manganese carbonate 5kg, copper sulfate 3kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 3.5mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.5.
Weigh carbamide 100kg, ammonium dihydrogen phosphate 47kg, potassium sulfate 71kg, dolomite dust 22kg more respectively; It is put into successively in disc spray comminutor, mix 10 minutes, it is thus achieved that the mixture of mix homogeneously, and prepared the irregular particle of 2.5mm particle diameter by disc spray comminutor, be Semen Caryae Cathayensis special fertilizer.
Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer are applied in the Semen Caryae Cathayensis forest land of soil acidification, the pH value of this timbered soil (soil depth is 20～30cm) is 3.5, exchange acidity is 7.8cmol/kg, belong to strongly acidic soil, and the Chinese walnut in forest land is 20 years age of trees. Choosing Chinese walnut totally 200 strain that planting density in above-mentioned Semen Caryae Cathayensis forest land is consistent with growing way, wherein Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer are used in 100 strains, and all the other 100 strains are left intact as comparison. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer are applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 20～30cm; The amount of application of Semen Caryae Cathayensis soil acidification modifying agent is 1.2t/hm2, time of application is early November, and the amount of application of Semen Caryae Cathayensis special fertilizer is 0.90t/hm2, time of application respectively early March and mid-November. Second Year JIUYUE sampling analysis, the pH value of this soil (soil depth is 20～30cm) is 5.9, and exchange acidity is 0.13cmol/kg. In control treatment, the yield of Chinese walnut is 473.56kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 52 strains, dry rot 29 strain, and outer peel thickness is 0.35cm, and pit 100-grain weight is 368.9g. In using the process of Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer, the yield of Chinese walnut is 835.95kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 11 strains, dry rot 17 strain, and outer peel thickness is 0.43cm, and pit 100-grain weight is 405.9g.
Embodiment 7
Weigh calcium cyanamide 100kg, carbamide 20kg, dolomite dust 35kg, calcium oxide 30kg, magnesium oxide 15kg, sodium borate 5kg, zinc sulfate 7kg, manganese carbonate 5kg, copper sulfate 3kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 3.5mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.5.
Weigh carbamide 100kg, ammonium dihydrogen phosphate 87kg, potassium sulfate 100kg, dolomite dust 22kg again; It is put into successively in disc spray comminutor, mix 10 minutes, it is thus achieved that the mixture of mix homogeneously, and prepared the irregular particle of 4mm particle diameter by disc spray comminutor, be Semen Caryae Cathayensis special fertilizer.
Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer are applied in the Semen Caryae Cathayensis forest land of soil acidification, the pH value of this timbered soil (soil depth is 20～30cm) is 3.5, exchange acidity is 7.8cmol/kg, belong to strongly acidic soil, and the Chinese walnut in forest land is 20 years age of trees.Choosing Chinese walnut totally 200 strain that planting density in above-mentioned Semen Caryae Cathayensis forest land is consistent with growing way, wherein Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer are used in 100 strains, and all the other 100 strains are left intact as comparison. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer are applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 20～30cm; The amount of application of Semen Caryae Cathayensis soil acidification modifying agent is 0.90t/hm2, time of application is early November, and the amount of application of Semen Caryae Cathayensis special fertilizer is 1.20t/hm2, time of application respectively early March and mid-November. Second Year JIUYUE sampling analysis, the pH value of this soil (soil depth is 20～30cm) is 5.6, and exchange acidity is 0.19cmol/kg. In control treatment, the yield of Chinese walnut is 473.56kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 52 strains, dry rot 29 strain, and outer peel thickness is 0.35cm, and pit 100-grain weight is 368.9g. In using the process of Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer, the yield of Chinese walnut is 905.25kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 12 strains, dry rot 16 strain, and outer peel thickness is 0.45cm, and pit 100-grain weight is 406.1g.
Embodiment 8
Weigh calcium cyanamide 100kg, carbamide 20kg, dolomite dust 35kg, calcium oxide 30kg, magnesium oxide 15kg, sodium borate 5kg, zinc sulfate 7kg, manganese carbonate 5kg, copper sulfate 3kg respectively; it is put into successively in disc spray comminutor; mix 5 minutes; obtain the mixture of mix homogeneously; and the irregular particle of 3.5mm particle diameter is prepared by disc spray comminutor; i.e. Semen Caryae Cathayensis soil acidification modifying agent, modifying agent pH is 9.5.
Weigh carbamide 100kg, ammonium dihydrogen phosphate 70kg, potassium sulfate 90kg, dolomite dust 22kg again; It is put into successively in disc spray comminutor, mix 10 minutes, it is thus achieved that the mixture of mix homogeneously, and prepared the irregular particle of 2.5mm particle diameter by disc spray comminutor, be Semen Caryae Cathayensis special fertilizer.
Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer are applied in the Semen Caryae Cathayensis forest land of soil acidification, the pH value of this timbered soil (soil depth is 20～30cm) is 3.5, exchange acidity is 7.8cmol/kg, belong to strongly acidic soil, and the Chinese walnut in forest land is 20 years age of trees. Choosing Chinese walnut totally 200 strain that planting density in above-mentioned Semen Caryae Cathayensis forest land is consistent with growing way, wherein Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer are used in 100 strains, and all the other 100 strains are left intact as comparison. Above-mentioned Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer are applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 20～30cm; The amount of application of Semen Caryae Cathayensis soil acidification modifying agent is 0.90t/hm2, time of application is early November, and the amount of application of Semen Caryae Cathayensis special fertilizer is 1.05t/hm2, time of application respectively early March and mid-November. Second Year JIUYUE sampling analysis, the pH value of this soil (soil depth is 20～30cm) is 6.4, and exchange acidity is that 0.11cmol/kg is in control treatment. The yield of Chinese walnut is 473.56kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 52 strains, dry rot 29 strain, and outer peel thickness is 0.35cm, and pit 100-grain weight is 368.9g. In using the process of Semen Caryae Cathayensis soil acidification modifying agent and Semen Caryae Cathayensis special fertilizer, the yield of Chinese walnut is 955.25kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 8 strains, dry rot 15 strain, and outer peel thickness is 0.43cm, and pit 100-grain weight is 406.5g.
Comparative example 5
Weigh carbamide 100kg, ammonium dihydrogen phosphate 70kg, potassium sulfate 90kg, dolomite dust 22kg; It is put into successively in disc spray comminutor, mix 10 minutes, it is thus achieved that the mixture of mix homogeneously, and prepared the irregular particle of 2.5mm particle diameter by disc spray comminutor, be Semen Caryae Cathayensis special fertilizer.
Above-mentioned Semen Caryae Cathayensis special fertilizer is applied in the Semen Caryae Cathayensis forest land of soil acidification, the pH value of this timbered soil (soil depth is 20～30cm) is 3.5, exchange acidity is 7.8cmol/kg, belongs to strongly acidic soil, and the Chinese walnut in forest land is 20 years age of trees. Choosing Chinese walnut totally 200 strain that planting density in above-mentioned Semen Caryae Cathayensis forest land is consistent with growing way, wherein Semen Caryae Cathayensis special fertilizer is used in 100 strains, and all the other 100 strains are left intact as comparison. It is 1.2～1.3m that above-mentioned Semen Caryae Cathayensis special fertilizer applies Semen Caryae Cathayensis tree root surrounding diameter, and the degree of depth is in the circular groove of 20～30cm; The amount of application of Semen Caryae Cathayensis special fertilizer is 1.05t/hm2, time of application respectively early March and mid-November. Second Year JIUYUE sampling analysis, the pH value of this soil (soil depth is 20～30cm) is 4.8, and exchange acidity is 4.31cmol/kg. In control treatment, the yield of Chinese walnut is 473.56kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 52 strains, dry rot 29 strain, and outer peel thickness is 0.35cm, and pit 100-grain weight is 368.9g. In the process using Semen Caryae Cathayensis special fertilizer, the yield of Chinese walnut is 703.71kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 34 strains, dry rot 24 strain, and outer peel thickness is 0.41cm, and pit 100-grain weight is 401.7g.
Comparative example 6
Semen Caryae Cathayensis routine compound fertilizer (15-15-15) in current conventional fertilizer application mode is applied in the Semen Caryae Cathayensis forest land of soil acidification, the pH value of this timbered soil (soil depth is 20～30cm) is 3.5, exchange acidity is 7.8cmol/kg, belong to strongly acidic soil, and the Chinese walnut in forest land is 20 years age of trees. Choosing Chinese walnut totally 200 strain that planting density in above-mentioned Semen Caryae Cathayensis forest land is consistent with growing way, wherein Semen Caryae Cathayensis routine compound fertilizer is used in 100 strains, and all the other 100 strains are left intact as comparison. Above-mentioned conventional compound fertilizer is applied Semen Caryae Cathayensis tree root surrounding diameter is 1.2～1.3m, and the degree of depth is in the circular groove of 20～30cm; The amount of application of conventional compound fertilizer is 1.05t/hm2, time of application respectively early March and mid-November. Second Year JIUYUE sampling analysis, the pH value of this soil (soil depth is 20～30cm) is 3.9, and exchange acidity is 7.5cmol/kg. In control treatment, the yield of Chinese walnut is 473.56kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 52 strains, dry rot 29 strain, and outer peel thickness is 0.35cm, and pit 100-grain weight is 368.9g. In the process using Semen Caryae Cathayensis routine compound fertilizer, the yield of Chinese walnut is 587.10kg/hm2, the diseased plant number suffering from root rot in 100 strain Chinese walnut is 57 strains, dry rot 32 strain, and outer peel thickness is 0.37cm, and pit 100-grain weight is 392.4g.
Claims (6)
1. the method repairing Semen Caryae Cathayensis acidified soil, it is characterized in that, including in circular groove Semen Caryae Cathayensis soil acidification modifying agent being applied Semen Caryae Cathayensis tree root surrounding diameter to be 1.2～1.3m, the degree of depth be 20～30cm, described Semen Caryae Cathayensis soil acidification modifying agent is individually used, or with Semen Caryae Cathayensis special fertilizer compounding application;
Described Semen Caryae Cathayensis soil acidification modifying agent, with parts by weight, consisting of of active component: calcium cyanamide 100 parts;15～30 parts of carbamide; Dolomite dust 23～45 parts; Calcium oxide 23～45 parts; Magnesium oxide 8～23 parts; Trace element 8～23 parts;
When ranging for [4～4.55] of soil pH value, the amount of application of Semen Caryae Cathayensis soil acidification modifying agent is 0.75～1.05t/hm2; When soil pH value ranges for [3.5～4], amount of application is 1.2～1.35t/hm2。
2. the method for claim 1, it is characterised in that described Semen Caryae Cathayensis soil acidification modifying agent, with parts by weight, consisting of of active component:
3. the method for claim 1, it is characterised in that described Semen Caryae Cathayensis soil acidification modifying agent, with parts by weight, consisting of of active component:
4. the method for claim 1, it is characterised in that described Semen Caryae Cathayensis soil acidification modifying agent is diameter is the granule of 2～5mm.
5. the method for claim 1, it is characterised in that described Semen Caryae Cathayensis special fertilizer, by weight, including following effective ingredient: N100 part, P2O547～87 parts, K2O71～100 part.
6. method as claimed in claim 5, it is characterised in that during the special nutriment in a fertilizer spring fertilizer of described Semen Caryae Cathayensis, winter top dressing secondary are manured into soil, each dose is 0.90～1.20t/hm2。
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| CN105110893B (en) * | 2015-07-31 | 2018-08-28 | 深圳市芭田生态工程股份有限公司 | A kind of the integrated control fertilizer and its application process of soil-borne disease |
| CN105330475A (en) * | 2015-10-30 | 2016-02-17 | 马鞍山市心洲葡萄专业合作社 | Acidified soil restoration fertilizer |
| CN105348008B (en) * | 2015-11-30 | 2019-03-22 | 金正大生态工程集团股份有限公司 | A kind of solanaceous vegetables special nutrient set fertilizer and its method of administration suitable for acidified soil |
| CN106116939B (en) * | 2016-06-17 | 2019-10-01 | 杭州市植保土肥总站 | A kind of soil acidification renovation agent and its application |
| CN107141145A (en) * | 2017-07-10 | 2017-09-08 | 江苏金山东篱农业有限公司 | A kind of implantation methods of apocarya in shale Hills |
| CN109685262B (en) * | 2018-12-19 | 2021-07-27 | 杭州市林业科学研究院 | Method for predicting occurrence of dry rot of hickory nut based on discriminant analysis method |
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