Formulation of Sprays to Improve the Efficacy of Foliar Fertilisers
نویسنده
چکیده
Spray adjuvants can be employed in the foliar application of fertiliser to ensure adhesion of aqueous sprays to the waxy surfaces of foliage (wetters), to improve coverage of spray on foliage (spreaders), to minimise weathering of fertiliser deposits on foliage (stickers/extenders), and to increase the uptake of fertiliser into foliage (humectants, pH modifiers, and penetrants). Even with improved formulations using effective adjuvants, foliar fertilisers must be regarded as supplements to overcome deficiencies in micronutrients, and to boost macronutrients at critical physiological stages, rather than as substitutes for soil-applied fertilisers.
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