Nutrient use efficiency on hump & hollow systems on the South Island's West Coast – Guidelines for improved fertiliser use and soil nutrient management

This guide is designed to provide for information to help in management of fertiliser applications on hump and hollow systems on the West Coast of New Zealand. The guide is divided into two sections. Section 1 describes how soil, nutrient requirements and dry matter responses change as humps and hollows develop over time, and provides guidance to manage fertiliser requirements. Section 2 is designed to provide practical guidance on how to apply fertiliser in humps and hollows. The guide is based on measurements of fertiliser distribution patterns for two types of commonly used spreaders, Coombridge & Alexander SAM and Robertson® Transpread, two contrasting but important fertiliser products (urea and superphosphate), and three different widths of humps and hollows.