High efficiency magnesium fertilizer
A high efficiency magnesium fertilizer and a method for applying the same to an agronomic carrier or directly to soil. The magnesium fertilizer product is a powder comprising two or more forms of magnesium mixed with a suitable formulating agent.
1. A magnesium fertilizer product comprising:
from about 30% to about 50% (w/w) fast uptake form of magnesium, said fast uptake form being selected from the group consisting of magnesium sulphate and magnesium chloride;
from about 30% to about 60% (w/w) slow uptake form of magnesium said slow uptake form of magnesium being selected from the group consisting of magnesium carbonate and magnesium oxide; and
from about 3% to about 15% (w/w) sulfonate condensate,
said fertilizer product being ground so as to pass through at least a 100 mesh, U.S. standard sieve.
2. The magnesium fertilizer of claim 1 wherein the sulfonate condensate is naphthalene sulfonate condensate.
3. The magnesium fertilizer product according to claim 1 wherein the fertilizer product is ground so as to pass through at least a 325 mesh, U.S. standard sieve.
4. A method of preparing a magnesium fertilizer product comprising:
from about 30% to about 50% (w/w) fast uptake form of magnesium, wherein the fast uptake form of magnesium is selected from the group consisting of magnesium sulphate and magnesium chloride;
from about 30% to about 60% (w/w) slow uptake form of magnesium, wherein the slow uptake form of magnesium is magnesium carbonate or magnesium oxide; and
from about 3% to about 15% (w/w) sulfonate condensate,
wherein the fast uptake form, the slow uptake form and the sulfonate condensate are ground so as to pass through at least a 100 mesh, U.S. standard sieve.
5. The method according to claim 4 wherein the sulfonate condensate is naphthalene sulfonate condensate.
6. The method according to claim 4 wherein the fast uptake form, the slow uptake form and the formulating agent are ground so as to pass through at least a 325 mesh, U.S. standard sieve.
7. A method of promoting root formation and elongation in a plant comprising:
applying a magnesium fertilizer product to the soil, said magnesium fertilizer product comprising:
from about 30% to about 50% (w/w) fast uptake form of magnesium, wherein the fast uptake form of magnesium is magnesium sulphate;
from about 30% to about 60% (w/w) slow uptake form of magnesium, wherein the slow uptake form of magnesium is selected from the group consisting of magnesium carbonate or magnesium oxide; and
from about 3% to about 15% (w/w) sulfonate condensate,
wherein the fast uptake form, the slow uptake form and the formulating agent are ground so as to pass through at least a 100 mesh, U.S. standard sieve;
planting a seed or seedling in said soil; and
allowing the seed or seedling to grow.
8. The method according to claim 7 wherein the sulfonate condensate is a naphthalene sulfonate condensate.
9. The method according to claim 7 wherein the magnesium fertilizer product is applied to the soil as a coated agricultural product.
10. The method according to claim 4 wherein the agricultural product is selected from the group consisting of a seed; a fertilizer powder; a fertilizer granule; a fertilizer prill; a nitrogen granule; a potassium granule; a phosphate granule; corn grit; paper granules; and a sulfur product.
11. The method according to claim 7 wherein the fast uptake form, the slow uptake form and the formulating agent are ground so as to pass through at least a 325 mesh, U.S. standard sieve.
12. A method of preparing a magnesium fertilizer coated agronomic product comprising:
applying a mixture of from about 30% to about 50% (w/w) fast uptake form of magnesium, wherein the fast uptake form of magnesium is selected from the group consisting of magnesium sulphate and magnesium chloride;
from about 30% to about 60% (w/w) slow uptake form of magnesium, wherein the slow uptake form of magnesium is selected from the group consisting of magnesium carbonate and magnesium oxide; and
from about 3% to about 15% (w/w) sulfonate condensate,
wherein the fast uptake form, the slow uptake form and the sulfonate condensate are ground so as to pass through at least a 100 mesh U.S. standard sieve and the mixture is applied to the agronomic product at from about 0.1 to about 2.5% (w/w) of the agronomic product.
13. The method according to claim 12 wherein the sulfonate condensate is a naphthalene sulfonate condensate.
14. The method according to claim 12 wherein the agronomic product is selected from the group consisting of a seed; a fertilizer powder; a fertilizer granule; a fertilizer prill; a nitrogen granule; a potassium granule; a phosphate granule; corn grit; paper granules; and a sulfur product.
15. The method according to claim 12 wherein the mixture is ground so as to pass through at least a 325 mesh, U.S. standard sieve.
16. The method according to claim 12 wherein the mixture is applied to the agronomic product at from about 0.3% to about 2.5% (w/w) of the agronomic product.
17. The method according to claim 12 wherein the mixture is applied to the agronomic product at from about 0.3% to about 2.0% (w/w) of the agronomic product.
18. The method according to claim 12 wherein the mixture is applied to the agronomic product at from about 0.1 to about 2.0% (w/w) of the agronomic product.