CN101326909A - Plant protection film agent - Google Patents

Abstract

The invention discloses a plant protection pellicle, comprising 8-12 percent of polyvingl acetate emulsion,8-12 percent of humate, 3-5 percent of hydroxypropyl methylcellulose, 0.5-1 percent of alkyl sulphonates, 4-6 percent of Polyoxyethylene lauryl alcohol, 1.5-3 percent of gelatine glue, 1-2 percent of nano silica hydrated and 60-70 percent of water, and the compositions are added into water and mixed evenly to achieve black-brown suspension liquid. The plant protection pellicle has the functions of drug action, fertilizing, bagging and slow release. After dilution by water and spraying, a monomolecular film invisible to eyes is formed on the surface of the plant, thereby, the fruit tree is coated with 'clothes' immediately for thermal insulation, frost protection and drought resistance, restraining the transpiration of the moisture in the tree body, preventing the secondary infection of disease germs and improving the quality of agricultural products.

Description

Plant protection film agent

Technical field

The invention belongs to the plant protection technology field, be specifically related to a kind of be used to spray plant surface with protective plant, improve the plant protection film agent of growth quality.

Background technology

Along with the adjustment of the structure of rural undertaking, the fruits and vegetables cultivated area is able to speed ground growth at double.Solve the problem that infects of damage by disease and insect though spray insecticide to a certain extent, brought residue of pesticide to exceed standard and the problem of serious environment pollution.In recent years, the fruit bagging technology solves the measure that the excessive use of agricultural chemicals works the mischief as a kind of, has obtained large tracts of land and has promoted.Though this technology can reach the purpose of producing nuisanceless fruit, but still has many defectives.

Film mainly is to utilize the formed mineral salt film of bordeaux mixture to prevent the invasion and attack of disease in application in plant protection.The formed film of bordeaux mixture is the irregular accumulation of one deck and adheres to insoluble inorganic salt particle film on the plant surface; seed activity is little, rate of film build is low; need to use a large amount of bordeaux mixture could form film; and the mineral salt film function singleness that forms; non-watertight, light tight, be difficult for to decompose, influence photosynthesis of plants, be unfavorable for plant growing.

Summary of the invention

The purpose of this invention is to provide a kind of plant protection film agent that integrates drug effect, fertilizer efficiency, bagging, four kinds of effects of slowly-releasing, to promote plant growing being prevented and treated by plant disease effectively.

Plant protection film agent of the present invention is a kind of pitchy suspension; its chemical constituent comprises polyvinyl acetate emulsion, humate, hydroxypropyl methylcellulose, alkylsulfonate, ethoxylated dodecyl alcohol, gelatin, Nano carbon white and water, and above material shared weight percent content in plant protection film agent is:

Polyvinyl acetate emulsion 8%～12%

Humate 8%～12%

Hydroxypropyl methylcellulose 3%～5%

Alkylsulfonate 0.5%～1%

Ethoxylated dodecyl alcohol 4%～6%

Gelatin 1.5%～3%

Nano carbon white 1%～2%

Water 60%～70%.

The preparation method of plant protection film agent of the present invention is dissolved in hydroxypropyl methylcellulose in a part of water earlier to prepare the aqueous solution; water with remainder heats 60 ℃～80 ℃ then; under agitation add gelatin, alkylsulfonate and humate successively; after cooling; add Gonak, polyvinyl acetate emulsion, Nano carbon white and ethoxylated dodecyl alcohol; stir the bottling packing.

The plant protection film agent that the present invention prepares is the liquid physical preparation of a kind of membranous type, is pitchy suspension, pH value 6.5～8.0, and viscosity (is coated with-4 glasss; 25 ℃) 30～150 seconds, after converting that water is rare and executing, spraying film forming rapidly on plant, film forming resistance of rainwater washing against; do not peel off, wrinkle resistant, non-foaming.

Using method:

Use 100～150 times of liquid to spray garden clearly, can prevent and treat branch bar venereal disease evils such as fruit tree putrefaction disease; Use 400～600 times of juicy fruits to spray in fact, can spend the alternative bagging in back be used for the diseases prevention anticracking of fruit, antifouling antirust, the hyperchromic and mass color of volume increase; For the sick scar of limb, use 3～5 times of liquid directly to smear after drawing with cutter; Use 10～20 times of liquid directly to smear limb, can prevent rot recurrence in the coming year.

Plant protection film agent of the present invention integrates drug effect, fertilizer efficiency, bagging, four kinds of effects of slowly-releasing; after converting water and spraying; can form the monomolecular film that one deck is invisible to the naked eye at plant surface very soon, plant is protected effectively, be effective assurance of producing the green non-pollution agricultural product.

After spraying film of the present invention on the fruit tree; film forming " wears the clothes " for fruit tree rapidly; suppress tree body moisture transpiration amount; reduce because the heat energy that water evaporates expends; eliminate the influence of day and night temperature and temperature sudden change, tree body temperature degree is improved, thereby prevent cold damages such as a bar freeze injury, " stripping of surviving the winter ", branch bar day burning effectively; insulation, antifreeze, Bao Shu, guarantor's leaf, protect flower, fruit retention, make the plant normal development.

Film of the present invention can with tree body strong bonded, by the isolated extraneous pathogeny of film forming, stop infecting again of germ, also can it be closed down the germ of having infected by sticking stifled effect, special ring spot, rot, dry rot for apple tree, pear tree, the gummosis of peach, branch diseases such as the foot rot of citrus have eradicant action.

Natural source active substance, nano-substance and the skin penetration enhancer that contains in the film of the present invention can make fruit tree wound healing accelerate, and the skin of preventing or cure a disease, long new skin have additional nutrients, and recover tree vigo(u)r.Can significantly improve self growing way and resistance against diseases of plant after film of the present invention sprays,, have the effect of agricultural chemicals though be not agricultural chemicals.Because film adhesiveness of the present invention is big, penetration is strong, resistance of rainwater washing against, can change the permeation of cell membrane, after the agriculture chemical compounding use, can carry out slowly-releasing to agricultural chemicals, (reduce agricultural chemicals usage amount 1/3～1/2, prolong drug effect 7～15 days to increase the field lasting period, reduce medication number of times 2～3 times), really reach the effect of " subtract medicine does not subtract effect, residue of pesticide are low, laborsaving saves trouble again ", improve safety, reduce environmental pollution people and animals.

Film of the present invention also has absorption, stable, transhipment, slowly-releasing, activation and synergistic effect to fertilizer efficiency compositions such as various mineral salt, both can improve photosynthesis, increase nutrient, can suppress the nutrition effective consumption in the plant respiration process again, reach and be not that fertilizer but has the effect of fertilizer effect, with the composite formation organic-inorganic composite fertilizer of chemical fertilizer, increase fertilizer efficiency, the minimizing chemical fertilizer is fixed and runs off, improve chemical fertilizer utilization ratio, improve soil function, form complex compound, improve the ability of plant trace elements absorbed and running with trace element.

Film of the present invention has formed the fine and close netted stealthy monomolecular film that one deck naked eyes can't be seen at plant surface, permeable watertight, make fruit, blade, branch bar shinny, similar fruit bagging, really play to deaden and pollute, prevent that day is bright, gas is bright and damage by disease and insect,, suppress breathing fruit face mass color, anticracking, hyperchromic, prolong effects such as post-harvest fresh-keeping phase, save human and material resources and financial resources.Make blade turn green, plump simultaneously, leaf area increases, and photosynthesis strengthens, sugar and dry matter increase, thus make grain, really, vegetables are precocious and ripe consistent (can go on the market in advance 10～15 days, mouthfeel is good), increase output 10～25%, improve, improve quality of agricultural product from many aspects.

Embodiment

Embodiment 1

At first in the 500L reactor, add 350Kg water, stir adding 50Kg hydroxypropyl methylcellulose dissolving down fully.In the 1000L reactor, add 300Kg water then, be heated to 70 ℃, stir adding 30Kg gelatin down, after treating thoroughly to dissolve, add 10Kg dodecyl sodium sulfate, 100Kg sodium humate again, add the above-mentioned 400Kg hydroxypropyl methylcellulose aqueous solution, 80Kg polyvinyl acetate emulsion, 20Kg Nano carbon white and 60Kg ethoxylated dodecyl alcohol after the cooling according to this, stir 1h, obtain the suspension of pitchy homogeneous, material pH value 7.6, viscosity (being coated with-4 glasss, 25 ℃) 94 seconds, packing is made product.

Embodiment 2

At first in the 500L reactor, add 300Kg water, stir adding 30Kg hydroxypropyl methylcellulose dissolving down fully.In the 1000L reactor, add 350Kg water then, be heated to 80 ℃, stir adding 20Kg gelatin down, after treating thoroughly to dissolve, add 10Kg sodium octyl, 120Kg ammonium humate again, add the above-mentioned 330Kg hydroxypropyl methylcellulose aqueous solution, 110Kg polyvinyl acetate emulsion, 10Kg Nano carbon white and 50Kg ethoxylated dodecyl alcohol after the cooling according to this, stir 1.5h, obtain the suspension of pitchy homogeneous, material pH value 6.8, viscosity (being coated with-4 glasss, 25 ℃) 76 seconds, packing is made product.

Embodiment 3

For understanding the preventive effect of film of the present invention to apple valsa canker, and provide scientific basis for applying from now on, used film of the present invention to smear the rot patch test in 2006 in 13 years living Fuji apple orchards of Linyi County Bei Xin township Bei Xin village Zhang Haifang, and together relevant medicament contrasts, clear water compares, and result of the test sees the following form:

Table 1 plant protection film agent control of the present invention fruit tree putrefaction disease field trial is summed up

As can be seen from Table 1, plant protection film agent of the present invention can reach 94.15% to the preventive effect of apple valsa canker, apparently higher than other medicament.The callus growth of smearing behind the film of the present invention is obvious, and the scab healing is fast, to the no any harmful effect of growing of tree body.

Embodiment 4

For understanding the control efficiency of film of the present invention to jujube dehiscent fruit and sick fruit, and provide scientific basis for applying from now on, on July 15th, 2006 to September 30 in Botou City Qi Qiao town, Hebei province together to the red date garden, use film of the present invention to carry out field trial, and together relevant medicament contrasts, clear water compares, and the results are shown in following table:

Table 2 plant protection film agent control jujube dehiscent fruit of the present invention and sick fruit field trial are summed up

Annotate: conventional dose is bordeaux mixture 2 times, gives birth to M45 (800 times of liquid) 2 times greatly, and black star speed gram, mancozeb, carbendazim etc. are used alternatingly.

Result of the test shows, use 400～600 times of liquid of film of the present invention, in jujube fruit expanding stage, white ripe phase (beginning painted), gather respectively sprayed 1 time in preceding 15 days, the dehiscent fruit rate only is 7.83% and 10.67%, diseased fruit rate only is 2.17% and 3.83%, and conventional dose dehiscent fruit rate and diseased fruit rate are respectively 31.5% and 8.17%.The preventive effect of film of the present invention obviously is better than conventional dose, can promote the use of in jujube district large tracts of land, to satisfy anticracking, diseases prevention, anti-mashed needs.

Claims (2)

1, a kind of plant protection film agent is made up of polyvinyl acetate emulsion, humate, hydroxypropyl methylcellulose, alkylsulfonate, ethoxylated dodecyl alcohol, gelatin, Nano carbon white and water, more than the weight percent content of each component be:

Polyvinyl acetate emulsion 8%～12%

Humate 8%～12%

Hydroxypropyl methylcellulose 3%～5%

Alkylsulfonate 0.5%～1%

Ethoxylated dodecyl alcohol 4%～6%

Gelatin 1.5%～3%

Nano carbon white 1%～2%

Water 60%～70%.

2, the preparation method of the described plant protection film agent of claim 1; be hydroxypropyl methylcellulose to be dissolved in a part of water to make the aqueous solution earlier; water with remainder heats 60 ℃～80 ℃ again; stir and add gelatin, alkylsulfonate and humate down successively; the cooling back adds Gonak, polyvinyl acetate emulsion, Nano carbon white and ethoxylated dodecyl alcohol, makes after stirring.