Fertilizer composition, process for producing the same and method of use thereof

Abstract

A solid fertilizer composition comprising urea nitrate and calcium phosphate; and a liquid fertilizer composition comprising urea nitrate and calcium phosphate both dissolved in water. These fertilizer compositions are fertilizers capable of feeding nitrogen, phosphoric acid and calcium which are crucial for the growth of plants, excelling in storage stability, and when dissolved in water, would not generate phosphate precipitates. These fertilizer compositions are suitable for use in a nutrient solution cultivation method, and, for example, the liquid fertilizer composition is applied to the stems and / or leaves of plants.

Description

technical field [0001] The present invention relates to fertilizer compositions, methods for their manufacture and methods for their use. Background technique [0002] In order to supplement the ingredients necessary for the growth of plants such as crops and flowers, as fertilizers, compound fertilizers that are a balanced mixture of various ingredients are generally used. In the case of direct fertilization in a solid state, plants can use the nutrients dissolved from the water in the soil, but there are excessive or insufficient nutrients, local differences in the concentration of fertilizers that cause adverse effects on crops, and salt accumulation. Obstacles to continuous cropping, fertilizer components flowing into groundwater and river water, etc. Therefore, fertilizers in the form of an aqueous solution that can easily supply essential components to plants are also generally used. This kind of fertilizer is called liquid fertilizer, and it is especially used in th...

AI Technical Summary

Problems solved by technology

However, due to the phytotoxicity caused by urea nitrate to plants, it has not been practically applied, and its effective use as a fertilizer cannot be carried out substantially.

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