Search Results - "Deenik, Jonathan"

Biochar characteristics and application rates affecting corn growth and properties of soils contrasting in texture and mineralogy by Butnan, Somchai, Deenik, Jonathan L., Toomsan, Banyong, Antal, Michael J., Vityakon, Patma

“…Benefits of biochar as a soil amendment may vary with its properties, time after its application, and in relation to soil texture and mineralogy. Effects of…”
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Charcoal Volatile Matter Content Influences Plant Growth and Soil Nitrogen Transformations by Deenik, Jonathan L, McClellan, Tai, Uehara, Goro, Antal, Michael J. Jr, Campbell, Sonia

“…A series of short-term greenhouse experiments and laboratory incubations were conducted to evaluate the effect of macadamia (Macadamia integrifolia Maiden &…”
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Measuring the immeasurable: A structural equation modeling approach to assessing soil health by Maaz, Tai McClellan, Heck, Ronald H., Glazer, Christine Tallamy, Loo, Mitchell K., Zayas, Johanie Rivera, Krenz, Aleric, Beckstrom, Tanner, Crow, Susan E., Deenik, Jonathan L.

“…Soil health is recognized as an important ecosystem property sensitive to human impact. As a concept, soil health cannot be directly measured, and so…”
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Soil total carbon analysis in Hawaiian soils with visible, near-infrared and mid-infrared diffuse reflectance spectroscopy by McDowell, Meryl L., Bruland, Gregory L., Deenik, Jonathan L., Grunwald, Sabine, Knox, Nichola M.

“…Accurate assessment of total carbon (Ct) content is important for fertility and nutrient management of soils, as well as for carbon sequestration studies. The…”
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Edaphic controls of soil organic carbon in tropical agricultural landscapes by Wells, Jon M., Crow, Susan E., Sierra, Carlos A., Deenik, Jonathan L., Carlson, Kimberly M., Meki, Manyowa N., Kiniry, Jim

“…Predicting soil organic carbon (SOC) is problematic in tropical soils because mechanisms of SOC (de)stabilization are not resolved. We aimed to identify such…”
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Importance of sub-surface rhizosphere-mediated coupled nitrification–denitrification in a flooded agroecosystem in Hawaii by Penton, C. Ryan, Deenik, Jonathan L., Popp, Brian N., Bruland, Gregory L., Engstrom, Pia, St. Louis, Derek, Tiedje, James

“…The fate of fertilizer nitrogen (N) in flooded agroecosystems is difficult to predict given the multitude of potential N transformation pathways. In…”
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Assessing the Effects of Digestates and Combinations of Digestates and Fertilizer on Yield and Nutrient Use of Brassica juncea (Kai Choy) by Jamison, Jacqueline, Khanal, Samir Kumar, Nguyen, Nhu H., Deenik, Jonathan L.

“…Anaerobic digestion of organic wastes produces solid residues known as digestates, which have potential as a fertilizer and soil amendment. The majority of…”
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Comparative Metagenomics Reveals Enhanced Nutrient Cycling Potential after 2 Years of Biochar Amendment in a Tropical Oxisol by Yu, Julian, Deem, Lauren M, Crow, Susan E, Deenik, Jonathan, Penton, C Ryan

“…The complex structural and functional responses of agricultural soil microbial communities to the addition of carbonaceous compounds such as biochar remain…”
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DNA-Stable Isotope Probing Shotgun Metagenomics Reveals the Resilience of Active Microbial Communities to Biochar Amendment in Oxisol Soil by Yu, Julian, Pavia, Michael J, Deem, Lauren M, Crow, Susan E, Deenik, Jonathan L, Penton, Christopher Ryan

“…The functions and interactions of individual microbial populations and their genes in agricultural soils amended with biochar remain elusive but are crucial…”
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Biochar Properties Influencing Greenhouse Gas Emissions in Tropical Soils Differing in Texture and Mineralogy by Butnan, Somchai, Deenik, Jonathan L., Toomsan, Banyong, Antal, Michael J., Vityakon, Patma

“…The ability of biochar applications to alter greenhouse gases (GHGs) (CO2, CH4, and N2O) has been attracting research interest. However, inconsistent published…”
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Charcoal Ash and Volatile Matter Effects on Soil Properties and Plant Growth in an Acid Ultisol by DEENIK, Jonathan L, DIARRA, Aminata, UEHARA, Goro, CAMPBELL, Sonia, SUMIYOSHI, Yudai, JERRY ANTAL, Michael

“…There is a growing interest in converting organic wastes to charcoal for use as a sustainable soil amendment with a potential to improve soil productivity and…”
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Belowground impacts of perennial grass cultivation for sustainable biofuel feedstock production in the tropics by Sumiyoshi, Yudai, Crow, Susan E., Litton, Creighton M., Deenik, Jonathan L., Taylor, Andrew D., Turano, Brian, Ogoshi, Richard

“…Perennial grasses can sequester soil organic carbon (SOC) in sustainably managed biofuel systems, directly mitigating atmospheric CO2 concentrations while…”
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Distribution of Soil Nutrients and Ancient Agriculture on Young Volcanic Soils of Ta‘ū, American Samoa by Autufuga, Dolly, Quintus, Seth, Yoo, Kyungsoo, Day, Stephanie, Huebert, Jennifer, Deenik, Jonathan, Lincoln, Noa Kekuewa

“…Soils and agriculture are inextricably linked, in the past as well as today. The Pacific islands, which often represent organized gradients of the essential…”
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Improving clay content measurement in oxidic and volcanic ash soils of Hawaii by increasing dispersant concentration and ultrasonic energy levels by Silva, Joshua H.S., Deenik, Jonathan L., Yost, Russell S., Bruland, Gregory L., Crow, Susan E.

“…Quantifying clay content is a fundamental step in predicting and managing soil behaviors such as nutrient and water retention. However, clay measurements are…”
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Dual burden of malnutrition in US Affiliated Pacific jurisdictions in the Children's Healthy Living Program by Novotny, Rachel, Li, Fenfang, Leon Guerrero, Rachael, Coleman, Patricia, Tufa, Aifili J, Bersamin, Andrea, Deenik, Jonathan, Wilkens, Lynne R

“…Few data are available on dual burden of under and over nutrition of children in the Pacific region. The objective was to examine prevalence of stunting at…”
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Response of selected soil physical and hydrologic properties to manure amendment rates, levels, and types by Fares, Ali, Abbas, Farhat, Ahmad, Amjad, Deenik, Jonathan L, Safeeq, Mohammad

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RESPONSE OF SELECTED SOIL PHYSICAL AND HYDROLOGIC PROPERTIES TO MANURE AMENDMENT RATES, LEVELS, ANDTYPES by Fares, Ali, Abbas, Farhat, Ahmad, Amjad, Deenik, Jonathan L., Safeeq, Mohammad

“…Manure amendments affect several soil physical and hydrologic properties. The objectives of this study were to evaluate the effect of (i) manure amendment…”
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Effects of Subsetting by Carbon Content, Soil Order, and Spectral Classification on Prediction of Soil Total Carbon with Diffuse Reflectance Spectroscopy by Grunwald, Sabine, Deenik, Jonathan L., Bruland, Gregory L., McDowell, Meryl L.

“…Subsetting of samples is a promising avenue of research for the continued improvement of prediction models for soil properties with diffuse reflectance…”
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Assessing Nitrogen Transformations in a Flooded Agroecosystem Using the Isotope Pairing Technique and Nitrogen Functional Gene Abundances by Penton, C Ryan, Deenik, Jonathan L, Popp, Brian N, Bruland, Gregory L, Engstrom, Pia, Mueller, Jaclyn, Worden, Andrew, Tiedje, James M

“…ABSTRACTPredicting N losses in flooded agricultural systems is complex because of the large number of potential N transformation pathways. Although coupled…”
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The legacy of intensive agricultural history on the soil health of (sub)tropical landscapes by Crow, Susan E., Hubanks, Hannah, Deenik, Jonathan L., McClellan Maaz, Tai, Tallamy Glazer, Christine, Vizka, Elaine, Rivera-Zayas, Johanie

“…Soil health conceptualized as a measurable ecosystem property provides a powerful tool for monitoring progress in restoration projects or implementation of…”
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