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Agrochemicals and fertilisers
Granular 60 calcium hydroxide
Granular 60 slaked lime is a slaked lime for fertilisers.
Slaked lime is now available in granular form, with uniform grains, making it much easier to use.
Causes of calcium deficiency
(i) Washed away by rain (The cause of 20%-30% of acidification)
(ii) Physiological acid fertiliser (The cause of 50% of acidification)
(iii) Absorption by crops (The cause of 20%-30% of acidification)
(iv) Acidification-prone soils (volcanic ash and alluvial soils)
(v) Acidification in converted fields (from paddy to field)
(vi) Acidification due to deep tillage (subsoil is acidic due to lack of base)
Calcium is one of the four major components of fertilisers, along with nitrogen, phosphoric acid and pottasium.
(i) Neutralises excess organic acids in the plant body.
(ii) Combines with pectin to strengthen cell membranes and make them more resistant to disease.
(iii) Promotes root development.
Calcium is not easily translocated within the plant, so a lack of lime causes deficiency symptoms in areas where cell division and elongation occur rapidly (e.g. growth points and fruit during hypertrophy).
Calcium is not only absorbed by the crop as a fertiliser, but also plays a role in ensuring an optimum pH of the soil, promoting soil colloidal aggregation, increasing microbial activity, utilising geo-enriched nitrogen, increasing cation exchange capacity, enabling phosphoric acid and fixing heavy metals.
Suitable pH varies from crop to crop.
Amount of calcium hydroxide required to correct pH (approximate).
The actual amount of fertiliser applied should be determined by soil analysis.
Calcium Hydroxide should be mixed with the soil immediately after application, and always allow 1-2 weeks before planting.
About Granular 60 calcium hydroxide
Hotarugaoka Office
TEL：+81-88-855-9965 FAX：+81-88-880-8808
2-3-5, Hotarugaoka, Nankoku city, Kochi 783-0060
