Kōrero: Superphosphate

Granules

Granules

Superphosphate comes in granules of different sizes. The best superphosphate has granules of 1–4 millimetres in diameter, with about 5% outside this range. The granules collapse on contact with soil moisture and release phosphate rapidly into the soil.

Te whakamahi i tēnei tūemi

Massey University

This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Arthur Duncan, 'Superphosphate - Superphosphate history', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/photograph/15561/granules (accessed 29 September 2020)

He kōrero nā Arthur Duncan, i tāngia i te 24 Nov 2008