A method for enhancing or reducing photosynthetic activity, wherein non-toxic, pigmented matter is applied to a photosynthetic organism. Depending on the composition of the pigmented matter, the method will have the effect of enhancing, reducing, or inhibiting photosynthetic activity.

A method employing a composition of bioavailable minerals directed at supplementing nutritional intake of a living plant. The composition includes the ionic mineral(s) copper and zinc in a ligand complex and a pharmaceutically acceptable carrier including water, H.sub.2SO.sub.4 and (NH.sub.4).sub.2SO.sub.4. The composition for use in the method may also include other supporting plant nutrients such as botanical extracts, urea, plant hormones, vitamins and mineral supplements necessary for plant health.

A method employing a composition of bioavailable minerals directed at supplementing nutritional intake of a living plant. The composition includes the ionic mineral(s) copper and zinc in a ligand complex and a pharmaceutically acceptable carrier including water, H.sub.2SO.sub.4 and (NH.sub.4).sub.2SO.sub.4. The composition for use in the method may also include other supporting plant nutrients such as botanical extracts, urea, plant hormones, vitamins and mineral supplements necessary for plant health.

The present invention relates to an organic nutrient-based dissolution accelerator for potassium sulfate and a preparation method therefor and the use thereof. The organic nutrient-based dissolution accelerator for potassium sulfate of the present invention consists of an organic acid mixture solution, tyrosine, leucine, threonine, alcohol amine, and the like. The organic nutrient-based dissolution accelerator for potassium sulfate of the present invention can not only substantially improve the dissolution speed of potassium sulfate by 6-120 times, but also provides organic nutrition for crops to achieve a synergy with inorganic nutrition to further improve the nutritional efficiency of potassium and sulfur elements.

The present invention relates to an organic nutrient-based dissolution accelerator for potassium sulfate and a preparation method therefor and the use thereof. The organic nutrient-based dissolution accelerator for potassium sulfate of the present invention consists of an organic acid mixture solution, tyrosine, leucine, threonine, alcohol amine, and the like. The organic nutrient-based dissolution accelerator for potassium sulfate of the present invention can not only substantially improve the dissolution speed of potassium sulfate by 6-120 times, but also provides organic nutrition for crops to achieve a synergy with inorganic nutrition to further improve the nutritional efficiency of potassium and sulfur elements.

The disclosed invention provides agricultural compositions for effective disruption of bacterial biofilms, for the treatment and preventing of bacterial diseases and disorders. The present invention also provides methods for the treatment and of prevention in a plant or plant part thereof, comprising applying to the plant or plant part said agricultural composition.

Fertilizer compositions containing protocatechuic acid are provided. Such fertilizer compositions may be used to fertilize plants or plant seeds. The use of such fertilizer compositions to fertilize plants or plant seeds can provide benefits to the plants, e.g., enhanced plant growth, less browning, greater pest resistance, and better flowering, as well as health benefits to consumers of those plants.

Elicitors are applied to cultivated crops in order to improve plant productivity and/or harvestable crop value in agricultural and horticultural operations providing increased production of metabolites in cultivated plants.

Elicitors are applied to cultivated crops in order to improve plant productivity and/or harvestable crop value in agricultural and horticultural operations providing increased production of metabolites in cultivated plants.

The invention provides a fertilising composition which includes a plant-assimilable phosphorus and calcium potentiator, said assimilable phosphorus potentiator being glyceric acid, a combination of said fertilising composition together with other fertilisers and/or biostimulants, as well as its use in the form of a hydrosoluble powder, granulate or liquid prior dissolution in water for direct application by fertigation or foliar application.