SILICEOUS FERTILIZER FOR NURSERY BED AND ITS APPLICATION

摘要

PROBLEM TO BE SOLVED: To obtain a siliceous fertilizer suitable for plant nursery beds by including as the main ingredient silica with its slurry at a specific pH value. SOLUTION: The siliceous fertilizer comprises as the main ingredient silica with its 5% slurry at pH 3.0-8.0. The pH value is pref. determined in accordance with the JIS K1150. In general, nursery beds of plants (e.g. gramineous plants such as rice, barley, lawn and bamboo grass) have been normally adjusted to pH 4.0-60. While a seliceous dirtilizer to be applied to nursery beds needs to not considerably fluctuate the pH value, the above-mentioned silica does not significantly affects the pH level of nursery beds, feeding plant seedlings with siliceous matter in high efficiency, thus leading to higher silieous content of the seedlings. The above-mentioned silica is pref. granular silica gel with a 10-mesh sieve-passable size (e.g. 0.1-2 mm) and bulk specific gravity of =1.0. The amount of this feritilizer to be applied is 200-800 g per 3 kg soil of a nursery bed.