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Spatial variation of soil nutrients in dairy pasture paddocks

Citation

Cotching, WE and Taylor, L and Corkrey, SR, Spatial variation of soil nutrients in dairy pasture paddocks, New Zealand Journal of Agricultural Research pp. 1-13. ISSN 0028-8233 (2019) [Refereed Article]

Copyright Statement

Copyright 2019 The Royal Society of New Zealand

DOI: doi:10.1080/00288233.2019.1576212

Abstract

Eight paddocks under perennial pasture were sampled on six commercial dairy farms in Tasmania, Australia on a grid with 32 to 40 topsoil samples taken from each paddock at 0-100 mm depth. The samples were analysed for soil pH and the plant available nutrients of phosphorus, potassium and sulfur. Soil nutrient levels were highly variable within paddocks due to livestock concentration and fodder management. There was a decreasing trend in nutrient concentration with increasing distance from the gate in most of the paddocks. Significant step changes occurred in the data at 0.178, 0.172 and 0.178 of total paddock length for P, K and S respectively. The implications are that no P or K fertiliser can be applied within approximately 20% of the length of the paddock from the gateway without compromising pasture productivity, as nutrients are well in excess of optimum.

Item Details

Item Type:Refereed Article
Keywords:nutrient management, phosphorus, potassium, sulfur, fertiliser
Research Division:Agricultural and Veterinary Sciences
Research Group:Agriculture, Land and Farm Management
Research Field:Agricultural Land Management
Objective Division:Animal Production and Animal Primary Products
Objective Group:Pasture, Browse and Fodder Crops
Objective Field:Non-Cereal Crops for Silage/Green Feed
UTAS Author:Cotching, WE (Dr Bill Cotching)
UTAS Author:Corkrey, SR (Dr Ross Corkrey)
ID Code:131765
Year Published:2019
Deposited By:TIA - Research Institute
Deposited On:2019-04-04
Last Modified:2019-06-12
Downloads:0

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