Winegrapesada9.pdf (Objet application/pdf) Handbook.pdf (Objet application/pdf) Soil testing. Digital Library. Fertilizing_grapes.pdf (Objet application/pdf) 03 Petiole analysis.pdf (Objet application/pdf) Interpretation_Soil_Analysis.pdf (Objet application/pdf) Bindocload.asp (Objet application/pdf) Taylor & Francis Online. PUBLISHING - Soil Research. Yield responsiveness and response curvature as essential criteria for the evaluation and calibration of soil phosphate tests for wheat ICR Holford, JM Morgan, J Bradley and BR Cullis Australian Journal of Soil Research 23(2) 167 - 180 Published: 1985 Abstract In a study using data from 57 wheat field experiments on the central-western slopes of New South Wales, eight soil phosphate tests (Bray,, Bray,, alkaline fluoride, Mehlich, Truog, lactate, Olsen and Colwell) were evaluated and calibrated in terms of responsiveness (â) and response curvature (C) parameters derived from the Mitscherlich equation.
Ltz_Beratungsgrundlagen für die Düngung im Ackerbau und auf Grünland.pdf (Objet application/pdf) Phosphor-Dynamik Zwischenbericht.pdf (Objet application/pdf) HortResearch Publication - Grapevine Fertiliser Recommendations. Among horticultural plants, grapevines are acknowledged as having less exacting nutritional requirements. They can be grown on a wide range of soil types, but nutritional problems show most commonly on lighter textured soils. Most established vineyards in New Zealand are on medium to heavier textured soil, with the exception of Marlborough. Nutrient disorders are often suspected where in fact, the causes of poor vine growth result from other factors such as waterlogging, phylloxera, nematodes, drought and herbicide injury. New Zealand vineyards are commonly located on fertile soils, and normally annual fertiliser requirements are not necessary. As a general rule annual fertiliser applications can be regarded as an unnecessary expense unless indicated by deficiency symptoms, soil tests or preferably, by plant analysis.
Methods_of_analysis_212.pdf (Objet application/pdf) Hill Laboratories - Soil Test for General Agriculture - Soil Testing for Agriculture. 15530 (Objet application/pdf) 0827.pdf (Objet application/pdf) Factsheet15.pdf (Objet application/pdf) Methods_of_P_Analysis_2000.pdf (Objet application/pdf)