Summary of the invention
The object of the invention is: a kind of boron potassium binary foliar nutrient is provided, utilize potassium element and boron element to have the advantages that to mutually promote and absorb, promote boron potassium to absorb and utilising efficiency, improve potassium element and boron element promoter action crop growth, it is required to satisfy crop growth, strengthens economic benefit.
Technical solution of the present invention is: by boric acid H
3BO
3With salt of wormwood K
2CO
3With molar concentration rate 2:3, at normal pressure, temperature 65-80 ℃ reaction 30-60min, its reaction product is as boron potassium binary foliar nutrient.
Wherein, in the boron potassium binary foliar nutrient, the content of boron with B count 1.5%, the content of potassium counts 16.0% with K.
Wherein, in the boron potassium binary foliar nutrient, boric acid and salt of wormwood react in the aqueous solution, and reaction product is a boron potassium binary foliar nutrient, and then the formulation of fertilizer is an aqua; The preparation method is: add in 1 liter water by the boric acid of molecular weight 97.6g with by the salt of wormwood of molecular weight 331.2g, at normal pressure, temperature 65-80 ℃ reaction 30min, its reaction product is a boron potassium binary foliar nutrient.
The invention has the advantages that boron potassium binary foliar nutrient simultaneously for crop provides potassium plain and boron element, the absorption of mutually promoting improves utilising efficiency, promotes crop yield and quality.
Embodiment
Below in conjunction with specific embodiment, technical solution of the present invention is described in further detail.Should be understood that these embodiment just in order to demonstrate the invention, but not limit the scope of the invention by any way.
Embodiment 1: in 2 liters water, add by the 195.2g boric acid of molecular weight with by the 662.4g salt of wormwood of molecular weight, at normal pressure, 65 ℃ of reactions of temperature 30min, question response finish after the cooling aqua, be boron potassium binary foliar nutrient.
Embodiment 2: in 5 liters water, add by the 488.0g boric acid of molecular weight with by the 1656.0g salt of wormwood of molecular weight, at normal pressure, 70 ℃ of reactions of temperature 30min, question response finish after the cooling aqua, be boron potassium binary foliar nutrient.
Embodiment 3: in 10 liters water, add by the 976.0g boric acid of molecular weight with by the 3312.0g salt of wormwood of molecular weight, at normal pressure, 80 ℃ of reactions of temperature 3min, question response finish after the cooling aqua, be boron potassium binary foliar nutrient.
Boron potassium binary foliar nutrient of the present invention application test in crop
For trying fertilizer: boron potassium binary foliar nutrient of the present invention, boron content 1.5%, potassium content 16.0%.
Wheat breed: common wheat kind Huaihe River wheat 19.
Rape variety: Shi Lifeng.
Test method: respectively with wheat and Semen Brassicae campestris with 1.0% clorox sterilization 30min after with deionized water rinsing repeatedly, soak behind the 24h at 25 ℃ of following vernalization 2d; Selecting seed of the same size, in phytotron, cultivate then, 12h/12h round the clock, temperature is 26 ℃/20 ℃, illumination 65klx, relative humidity 70%, the full Hoagland nutritive medium that toos many or too much for use (not boracic and potassium) is cultivated; When treating that wheat and rape seedling grow to 2 leaves, 1 heart, blade spraying boron potassium binary foliar nutrient, concentration dilution 250 and 500 times, promptly distinguish boracic 60mg/Kg, potassium 640mg/Kg and boron 30mg/Kg, potassium 320mg/Kg, boric acid boracic 30mg/Kg, Repone K contains potassium 320mg/Kg, and contrast spray clear water repeats 3 times; Handle and to measure that the seedling root is long behind the 7d, the bright dry weight of root, overground part height, the bright dry weight of overground part.
Test-results: boron potassium binary foliar nutrient is handled as shown in table 1 to the influence of wheat seedling growth, and boron potassium binary foliar nutrient is handled as shown in table 2 to the influence of rape growth of seedling.
Table 1 boron potassium binary foliar nutrient is handled the influence to wheat seedling growth
Table 2 boron potassium binary foliar nutrient is handled the influence to the rape growth of seedling
Can find out that from last table spraying boron potassium binary fertilizer seedling can help promoting the growth of seedlings of wheat and rape to be grown.