An agricultural potassium-fertigation method for emitter-irrigation potassium fertigation feeds a potassium-nutrient feedstock comprised of potassium formate and water to an active emitter-irrigation system continuously, or substantially continuously, at low levels, during the entire time, or substantially the entire time, that irrigation water is sufficiently flowing through the irrigation system during a prolonged term.

An agricultural potassium-fertigation method for emitter-irrigation potassium fertigation feeds a potassium-nutrient feedstock comprised of potassium formate and water to an active emitter-irrigation system continuously, or substantially continuously, at low levels, during the entire time, or substantially the entire time, that irrigation water is sufficiently flowing through the irrigation system during a prolonged term.

There is provided herein a granule of potash and polyhalite comprising: at least 10% Potash; at least 10% Polyhalite; optionally a binder; and wherein said granule comprises a bulk density of at least 1 T/m.sup.3 and single strength of between 1-5 kg/granule.

There is provided herein a granule of potash and polyhalite comprising: at least 10% Potash; at least 10% Polyhalite; optionally a binder; and wherein said granule comprises a bulk density of at least 1 T/m.sup.3 and single strength of between 1-5 kg/granule.

According to some embodiments, there is provided herein a granule comprising polyhalite and phosphate rock, in a ratio of between 30:70 to 70:30, respectively.

The invention relates to an optimized nutrient salt composition comprising elemental sodium and potassium in the ratio of 1:1.5 to 1:7 preferably 1:3 and elemental potassium to chloride in the ratio of 1:1 to 1:1.5 and method of preparing the same. Said composition can be optionally added with a) salts of calcium and, or magnesium as taste stabilizers, b) carbohydrate like polysaccharide, oligosaccharide, disaccharide, monosaccharide to produce energy electrolyte powder, c) food additives selected from anti-caking agents, crystal modifying agents, flavoring agents, flavor modifying agents, coloring agents and or any other food additives and d) nutrients selected from proteins, amino acids, carbohydrates, sugars, fat/oil, fatty acids, vitamins, minerals and water. Said optimized nutrient salt composition can be used as food, food ingredient, food supplement, table salt, preservative, food additive, seasoning agent and ingredient for oral rehydration fluid, intravenous fluids, beverages, energy drinks, sports/study drinks and stimulant drinks for humans, pets and livestock and for plant nutrition.

The invention relates to an optimized nutrient salt composition comprising elemental sodium and potassium in the ratio of 1:1.5 to 1:7 preferably 1:3 and elemental potassium to chloride in the ratio of 1:1 to 1:1.5 and method of preparing the same. Said composition can be optionally added with a) salts of calcium and, or magnesium as taste stabilizers, b) carbohydrate like polysaccharide, oligosaccharide, disaccharide, monosaccharide to produce energy electrolyte powder, c) food additives selected from anti-caking agents, crystal modifying agents, flavoring agents, flavor modifying agents, coloring agents and or any other food additives and d) nutrients selected from proteins, amino acids, carbohydrates, sugars, fat/oil, fatty acids, vitamins, minerals and water. Said optimized nutrient salt composition can be used as food, food ingredient, food supplement, table salt, preservative, food additive, seasoning agent and ingredient for oral rehydration fluid, intravenous fluids, beverages, energy drinks, sports/study drinks and stimulant drinks for humans, pets and livestock and for plant nutrition.

A concentrated aqueous suspension of microfibrillated cellulose (MFC) comprising salts for plant nutrition, the concentrated aqueous suspension comprises microfibrillated linear polymers of D-glucose molecules homogenized through a fibrillation process (cellulose microfibers), calcium ions, sulfate ions and other substances for plant nutrition, being the concentration of calcium ions and sulfate ions in excess of the concentration corresponding to the solubility of calcium sulfate in water and being the proportion of microfibrillated cellulose (MFC) within a range of 1% and 99% w/w of the suspension.

A concentrated aqueous suspension of microfibrillated cellulose (MFC) comprising salts for plant nutrition, the concentrated aqueous suspension comprises microfibrillated linear polymers of D-glucose molecules homogenized through a fibrillation process (cellulose microfibers), calcium ions, sulfate ions and other substances for plant nutrition, being the concentration of calcium ions and sulfate ions in excess of the concentration corresponding to the solubility of calcium sulfate in water and being the proportion of microfibrillated cellulose (MFC) within a range of 1% and 99% w/w of the suspension.

There is provided herein a granule comprising polyhalite in a concentration of between 20-80% w/w and urea in a concentration of between 20-50% w/w and optionally a binder, wherein said granule comprises a granule strength of at least 1.1 Kg/ granule.