You are here

Other elements of crop nutrition

Plain text source: 
Phosphorus deficient plants appear as stunted, dark green plants erect leaves and stout stems which often develop orange, red or purplish discolouration... The need for phosphate fertiliser should be determined using soil, plant tissue testing and test strips... Copper sulfate applied to the soil at 10-20 kg/ha prior to or at planting will last a number of years...