Multi-element chitin composite organic foliar fertilizer and preparation method thereof
A chitin and multi-element technology, applied in inorganic fertilizers, nitrogen fertilizers, magnesium fertilizers, etc., can solve problems such as difficult plant absorption, achieve the effects of increasing yield per mu, prolonging flowering period, and promoting coloring
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[0026] The preparation method of multi-element chitin composite organic foliar fertilizer of the present invention, the steps are as follows:
[0027] Step 1, with ZnSO 4 ·7H 2 O, FeSO 4 ·7H 2 O, CuSO 4 ·5H 2 O, MgSO 4 ·7H 2 O, MnSO 4 ·H 2 O, ammonium molybdate, boric acid, LaNO 3 、SeNO 3 ·6H 2 O, EDTA2-Na and Tween-80 are raw materials, according to the prescription of multi-element chitin composite organic foliage fertilizer and the amount to be prepared element chitin composite organic foliage fertilizer, prepare raw materials;
[0028] Step two, ZnSO 4 ·7H 2 O, FeSO 4 ·7H 2 O, CuSO 4 ·5H 2 O, MgSO 4 ·7H 2 O, MnSO 4 ·H 2 O, ammonium molybdate, boric acid, LaNO 3 、SeNO 3 ·6H 2 After O is dissolved respectively, mix, add water to the amount of elemental chitin composite organic foliage fertilizer to be prepared;
[0029] Step three, first use citric acid, H 2 SO 4 , one or more of KOH to adjust the pH value to the optimum value of EDTA2-Na (preferab...
Embodiment 1
[0036]Multi-element chitin compound organic foliage fertilizer, composed of: 100g / L chitosan oligosaccharide (molecular weight of chitosan oligosaccharide≤1500, degree of polymerization is 2-10 content of chitosan oligosaccharide≥2%), 0.09wt% EDTA -Zn, 0.08wt% EDTA-Cu, 0.13wt% EDTA-Fe, 0.08wt% EDTA-Mn, 0.58wt% ammonium molybdate, 1.5wt% boric acid, 0.06wt% LaNO 3 , 0.06wt% SeNO 3 , 1-2wt% Tween-80 and the balance of water.
[0037] The preparation method of the above-mentioned multi-element chitin compound organic foliage fertilizer has the following steps:
[0038] Step 1, with ZnSO 4 ·7H 2 O, FeSO 4 ·7H 2 O, CuSO 4 ·5H 2 O, MgSO 4 ·7H 2 O, MnSO 4 ·H 2 O, ammonium molybdate, boric acid, LaNO3, SeNO 3 ·6H 2 O, EDTA2-Na and Tween-80 are raw materials, according to the prescription of multi-element chitin composite organic foliage fertilizer and the amount to be prepared element chitin composite organic foliage fertilizer, prepare raw materials;
[0039] Step two, ...
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