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| Filter results4 paper(s) found. |
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1. Field Estimate of Dairy Manure Nitrogen Availability to PotatoesWithin Wisconsin, there is a distinct movement toward dairy herd expansion and consolidation of small farms. With the increase in manure production, these large dairies are considering various land and manure management arrangements with non-livestock farmers, such as potato producers. The purpose of this study is to evaluate several potato production issues resulting from such partnerships including the availability of dairy manure nutrients to potatoes. Nitrogen and phosphorus availability were... |
2. Estimation of Nitrogen Losses from Char Amended Fertilized Soils: a Laboratory StudyMore than 50% of nitrogen (N) fertilizer added to agricultural soil is lost to the environment through volatilization, denitrification, and leaching. Proper management of soil carbon (C) may reduce N losses since soil C affects soil properties and N cycling. There are a wide range of soil C management practices, including direct addition of high C content materials to the soil. A 30-day laboratory study was conducted to evaluate effects of char on N losses from fertilized loam and sandy loam soils.... D. Panday, B. Maharjan |
3. Effect Of High Carbon Char in Conjunction with Composted Manure and Urea on Corn YieldAn integrated approach to optimize fertilizer input through use of high carbon char (also called cinder), a by-product from a local industry in Western Nebraska, was set up for determination of optimal rate of char along with a given nitrogen (N) fertilizer or composted manure on corn (Zea mays L.) yield. Char is a potential soil amendment, since it contains around 30% total carbon (C) in addition to many essential plant nutrients. The experiment was started in 2016 in sandy loam... D. Panday, B. Maharjan |
4. Crop and Soil Response to Different Phosphorus Management ApproachesPhosphorus (P) management has implications for crop production and water quality issues in Ohio. Recent data from 457 field P trials conducted in Ohio reported less than 25% positive yield response to P fertilization. It warrants further evaluation of crop P uptake, soil P levels and environmental factors to improve the predictability of crop yield response. Therefore, we collected soil and plant data from three P fertilizer trials (Wooster, South Charleston, and Custar) established in 2006. These... M. Rakkar, L. Fleuridor, S. Culman, G. Labarge |