A kind of composition that is used to prevent and treat banana Panama disease
Technical field
The present invention relates to agriculture field, specifically, the present invention relates to a kind of composition that is used to prevent and treat banana Panama disease.
Background technology
South China is one of banana original producton location, and banana is distributed between 18 °-30 ° of the north latitude, plants in a large number in provinces and regions such as China Guangdong, Guangxi, Taiwan, Fujian, Hainan, Yunnan at present.Banana is because of small investment, high efficiency, and income is fast, and the domestic and international market demand is big, convenient transportation, thereby developed recently is swift and violent.Show that according to Ministry of Agriculture statistics national banana planting area nineteen ninety-five is 189.98 thousand hectares, gross yield 3125 kilotons.Cultivated area in recent years and output have had very large raising.But, find to have the banana Panama disease of title of " banana killer " and the generation of sigatoka in succession at present in China banana place of production.Banana Panama disease and sigatoka have the advantages that onset speed is fast, disease is serious.In the serious area of some morbidities, the banana garden is levelled to the ground in recent years, has brought great influence for China's banana industry.Owing at present also do not have desirable specific pesticide to prevent and treat for banana Panama disease, therefore when control, can only take to excavate diseased plant, cut and spill kerosene and pulverized limestone after broken, it is rotten to quicken diseased plant, covers with earth then.But this processing method work is heavy, can not thoroughly remove pathogeny again, can cause once again to infect.Therefore find the agricultural chemicals that effectively to prevent and treat banana Panama disease and sigatoka to become the task of top priority of banana industry.
Summary of the invention
The purpose of this invention is to provide a kind of composition that is used to prevent and treat banana Panama disease.
The present invention also aims to provide the application of hydrogen peroxide in the agricultural chemicals of preparation control banana Panama disease.
In order to realize purpose of the present invention, the invention provides a kind of composition that is used to prevent and treat banana Panama disease, comprise hydrogen peroxide 90-95 weight % and citric acid 5-10 weight %, preferably, comprise hydrogen peroxide 95 weight % and citric acid 5 weight %.
In the present invention, preferably, composition of the present invention also is included as the calcium dodecyl benzene sulfonate of the 0.01-0.05 weight % of described composition, preferably is included as the calcium dodecyl benzene sulfonate of 0.03 weight % of described composition.
Calcium dodecyl benzene sulfonate has another name called agricultural newborn 500#, and it is used for the effect that composition of the present invention can further strengthen the control banana Panama disease.
Preferably, composition of the present invention also comprises fulvic acid.
Preferably, composition of the present invention also comprises nutritional agents.More preferably, described nutritional agents is one or more in molybdenum compound, boron compound and the sodium compound.
Composition of the present invention can be made various forms, for example can make the form of the aqueous solution.
Basis of the present invention is that the inventor chances on hydrogen peroxide is used for banana when tree, obtained the effect of the control banana Panama disease that makes us unexpected.Based on this, the present invention also provides the application of hydrogen peroxide in the agricultural chemicals of preparation control banana Panama disease.In actual use, the aqueous hydrogen peroxide solution of high concentration (for example 80 weight %) although can also can obtain, is generally used for specific purposes, and is for example military.More preferably, the invention provides the application of aqueous hydrogen peroxide solution in the agricultural chemicals of preparation control banana Panama disease of 40 weight % following (being that concentration is greater than 0 and smaller or equal to 40 weight %).
Preparation of compositions of the present invention is very easy, it is directly mixed getting final product in use.Selectively, aqueous hydrogen peroxide solution directly can be used for the banana tree with the control banana Panama disease as agricultural chemicals.The cost of other compositions that comprised in hydrogen peroxide among the present invention and the composition thereof is lower, and wide material sources, and convenient the acquisition very is easy to be used for the banana tree on a large scale.Composition provided by the present invention is easy to preparation, can prevent and treat banana Panama disease effectively.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
Configuration concentration is respectively the aqueous hydrogen peroxide solution of 5 weight %, 10 weight %, 15 weight %, 20 weight %, 25 weight %, 30 weight %, 40 weight % respectively, is labeled as sample 1-7.
Embodiment 2
Get the aqueous hydrogen peroxide solution of 271.43 grams, 35 weight % and the citric acid of 5 grams, mix, obtain sample 8.
Embodiment 3
In sample 8, add the calcium dodecyl benzene sulfonate of 0.03 gram, mix, obtain sample 9.
Embodiment 4
In sample 9, add 5 gram fulvic acids, mix, obtain sample 10.
Embodiment 5
In sample 10, add the sodium onitrophenol of 5 grams, mix, obtain sample 11.
Embodiment 6
In sample 9, add the sodium onitrophenol of 5 grams, mix, obtain sample 12.
Experimental example 1
Judge banana Panama disease by following standard: classical symptom is the blade yellow, it is withered that leaf obstructs crooked sagging reversal of the natural order of things, spire flavescence gradually in top forms yellow with green stark contrast, and specific yellow appears in any of several broadleaf plants strain bottom and outer leaf sheath, edge from blade, to middle arteries and veins development, petiole is softening gradually, and it is withered that blade is yellowish-brown, last any of several broadleaf plants strain withered death, such plant is very fast withered.With above-mentioned transference cure as criterion of cure.
Integral body to ill banana tree is sprayed.For the ill banana tree of every strain, get 5 milliliters in corresponding sample, add 300 ml waters and dilute, spray then.Sample 1-12 sprays the ill bamboo grows of 200 strains respectively.Seven days once, smeared continuously 21 days.Need to prove that for convenience's sake, above-mentioned sample 1-12 directly prepares before use and gets final product.
Above-mentioned all ill banana trees all grow in same rubber plantation.Find that after 21 days the cure rate of using the ill banana tree of sample 1-7 reaches 80%; For the situation of using sample 8, cure rate reaches 90%; For the situation of using sample 9, cure rate reaches 98%; For the situation of using sample 10-12, banana Panama disease of ill banana tree even healing fully.
Experimental example 2
Get the normal banana tree of 200 strains, do not carry out any processing.
Respectively sample 1-12 is sprayed (200 milliliters/strain) to the integral body of normal banana tree.The normal banana tree of each sample administration 200 strain.Seven days once, sprayed continuously 1 year.
Above-mentioned banana tree all grows in same garden.Need to prove that for convenience's sake, above-mentioned sample 1-12 directly prepares before use and gets final product.
Through the observation in 1 year, find that the incidence of disease of the banana Panama disease of the banana tree of coating is not 30%.For the banana tree of using sample 1-12, do not find banana Panama disease.