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Browse by Author: David Hardy
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Soil Acidity and Liming: Basic Information for Farmers and Gardeners

By: Luke Gatiboni, David Hardy SoilFacts

An introduction to soil acidity and liming for farmers and gardeners to increase crop income and improve lawn and garden performance. Topics covered include soil pH, soil testing, liming standards and application and incorporation of lime into soil.

Soil Acidity and Liming for Agricultural Soils

By: Luke Gatiboni, David Hardy SoilFacts

Nearly all North Carolina soils are naturally acidic and need lime, which neutralizes the acidity, for optimum growth of crops, forages, turf, trees, and many ornamentals. Nature and cause of acidity, benefits of proper lime usage, soil testing and target pH, liming materials and lime application and incorporation are presented in this publication.

Careful Soil Sampling—The Key to Reliable Soil Test Information

By: Luke Gatiboni, Deanna Osmond, David Hardy 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.

North Carolina Soybean Production Guide

By: Katherine Drake Stowe, Rachel Vann, Carl Crozier, Gary Bullen, Jim Dunphy, Wesley Everman, Luke Gatiboni, Adrienne Gorny, David Hardy, Ryan Heiniger, Steph Kulesza, Deanna Osmond, Nick Piggott, Dominic Reisig, Gary Roberson, Heidi Schweizer, Lindsey Thiessen, Derek Washburn

This publication provides information to growers about soybean production in North Carolina. It discusses economic trends and forecasts, cultural practices, variety selection, planting decisions, nutrient management, diseases and pests, and other production practices.

Fertilization and Nutrient Management

By: David Hardy, Steph Kulesza, Luke Gatiboni

This publication, chapter 6 of the North Carolina Soybean Production Guide, covers fertilization and nutrient management in soybean production.

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

By: Luke Gatiboni, David Hardy, Deanna Osmond 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.

Muestrear el suelo cuidadosamente: la clave para obtener información confiable sobre el análisis de suelo

By: Luke Gatiboni, Deanna Osmond, David Hardy Datos sobre el suelo

Esta publicación explica cómo obtener muestras de suelo representativas y cómo enviarlas para que las analicen. Se incluye también dónde y cuándo tomar muestras, técnicas de muestreo adecuadas y el envío de las muestras para su análisis.

Soil pH Management for Fraser Fir Christmas Tree Production

By: David Hardy, Luke Gatiboni SoilFacts

This publication offers a discussion on how to lime Fraser fir Christmas trees. Fraser fir Christmas trees require a lower soil pH than most crops grown in North Carolina. Special management strategies for soil pH, calcium, and magnesium are needed to provide proper nutrition without over-liming.

Starter Phosphorus Fertilizer and Additives in North Carolina Soils: Use, Placement, and Plant Response

By: Luke Gatiboni, Deanna Osmond, David Hardy, Steph Kulesza SoilFacts

Phosphorus (P) is the second most important nutrient in crop production but is often found in relatively low amounts in native soils. Decades of fertilizer application have led to P enrichment of most North Carolina agricultural soils. Excess soil P that leaves agricultural fields via runoff and drainage can cause algal blooms in water resources that lead to impaired drinking water quality and can limit recreational activities. Maintaining adequate soil P levels for crop growth can reduce P runoff, save money, and protect the environment

Sulfur Fertilization of North Carolina Crops

By: Luke Gatiboni, David Hardy SoilFacts

Adequate sulfur is necessary for crops, but there’s no one-size-fits-all recommendation for application in North Carolina. Best management practices take sulfur removal and incidental sulfur inputs for the entire crop rotation, soil type and profile depth layers and soil and plant analysis results.

Deep Soil Sampling for Nutrient Management

By: Steph Kulesza, Deanna Osmond, David Hardy 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.

Lime Equivalence of Fine-Ground Basalt Rock

By: Luke Gatiboni, David Hardy, Deanna Osmond

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.

Calculating the Rate of Acidifiers to Lower the pH of North Carolina Soils

By: Luke Gatiboni, David Hardy, Deanna Osmond, John Havlin SoilFacts

Plants differ in their tolerance to soil pH. This publication provides information on determining the target pH for different crops and calculating the appropriate amount of materials to reduce soil pH when necessary.

The North Carolina Phosphorus Loss Assessment Tool (PLAT)

By: Deanna Osmond, David Crouse, David Hardy, Josh Spencer, John Classen SoilFacts

Phosphorus management is an important aspect of the USDA-NCRS nutrient management standard. Anyone applying animal waste or fertilizer in a nutrient-impaired subwatershed must determine potential phosphorus loss from each field. This publication describes the P-Index or Phosphorus Loss Assessment Tool that is used in North Carolina for this purpose.

The North Carolina Phosphorus Loss Assessment Tool (PLAT): A Guide for Technical Specialists

By: Deanna Osmond, David Crouse, David Hardy, Josh Spencer SoilFacts

Phosphorus management is an important aspect of the USDA-NCRS nutrient management standard. Anyone applying animal waste or fertilizer in a nutrient-impaired subwatershed must determine potential phosphorus loss from each field. This publication describes in great detail the P-Index or Phosphorus Loss Assessment Tool that is used in North Carolina for this purpose.

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.