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Browse by Author: David Hardy
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Careful Soil Sampling—The Key to Reliable Soil Test Information

By: Luke Gatiboni, David Hardy, Ekrem Ozlu SoilFacts

This publication explains how to obtain representative soil samples and to submit them for analysis. Where and when to take samples, proper sampling techniques, and submitting the samples for analysis are all covered.

Lime Equivalence of Fine-Ground Basalt Rock

By: Luke Gatiboni, David Hardy

Fine-ground basalt rock has recently become available as a soil amendment in North Carolina. This publication discusses the agricultural application of fine-ground basalt rock, the results of an incubation study to determine its lime equivalence, and its effects on soil nutrients and fertility.

Effects of Sodium Salts on Soils in Coastal Agricultural Fields

By: Ekrem Ozlu, David Hardy, Luke Gatiboni, Matthew Ricker SoilFacts

This publication provides information on the impacts wind-driven events have on the soil fertility. Salt water from storm surges, ocean spray, and tidal surges may increase sodium levels in coastal soils, which can be toxic to plants.

Changes in the Phosphorus Fertilizer Recommendations for Corn, Soybean, and Small Grains in North Carolina

By: Luke Gatiboni, David Hardy SoilFacts

This publication provides updated recommendations for phosphorus fertilizer application in corn, soybean, and small grains crops. It includes background and historical information about phosphorus critical levels, phosphorus rate recommendations, phosphorus accumulation in soils, and changes in recommendations.

Deep Soil Sampling for Nutrient Management

By: Steph Kulesza, David Hardy, Luke Gatiboni SoilFacts

Soil samples that determine lime and fertilizer needs of crops routinely come from the top 4 to 8 inches of soil. However, deep soil samples will be needed for the Phosphorus Loss Assessment Tool (PLAT), and this publication describes how to take these 28- to 32-inch deep samples.