Search Results - "Yost, R.S."

Modeling soil carbon sequestration in agricultural lands of Mali by Doraiswamy, P.C., McCarty, G.W., Hunt, E.R., Yost, R.S., Doumbia, M., Franzluebbers, A.J.

“…Agriculture in sub-Saharan Africa is a low-input low-output system primarily for subsistence. Some of these areas are becoming less able to feed the people…”
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Soil Aggregate Size Affects Phosphorus Desorption from Highly Weathered Soils and Plant Growth by Wang, X., Yost, R.S., Linquist, B.A.

“…Because plant absorption of P depends on the desorption of P from soil, understanding P desorption from soils may improve the precision of P diagnosis and…”
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Chemical properties of atoll soils in the Marshall Islands and constraints to crop production by Deenik, J.L., Yost, R.S.

“…The sandy carbonatic soils of Pacific atolls are considered infertile and poorly suited to agriculture. The Republic of the Marshall Islands is comprised…”
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Incorporating uncertainty in a chemical leaching assessment by Li, Z.C., Yost, R.S., Green, R.E.

“…Pesticide leaching models are being used to assist in the regulation and management of pesticides by indicating their potential for leaching to groundwater…”
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State-space estimation of the intrinsic soil phosphorus pools from soil phosphorus tests by Shuai, X., Yost, R.S., Wendroth, O.

“…The widely-used measurements of soil P by chemical soil tests cannot explicitly give the intrinsic status of soil P for quantitative management of soil P…”
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Arsenic accumulation by edible aquatic macrophytes by Falinski, K.A., Yost, R.S., Sampaga, E., Peard, J.

“…Edible aquatic macrophytes grown in arsenic (As)-contaminated soil and sediment were investigated to determine the extent of As accumulation and potential risk…”
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Improving multi-soil-layer (MSL) system remediation of dairy effluent by Pattnaik, R., Yost, R.S., Porter, G., Masunaga, T., Attanandana, T.

“…Dairy effluent disposal is a serious problem in the Hawaiian Islands. Dairies often establish multiple settling lagoons to accumulate and store effluent…”
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Plant-soil interactions associated with acid, weathered soils by Fox, R.L. (Hawaii Univ., Honolulu, HI (USA). Dept. of Agronomy and Soil Science), Hue, N.V, Jones, R.C, Yost, R.S

“…Plant-soil interactions in weathered soils are so complex that unqualified statements about a suitable pH for plants are risky. Conventional experimental…”
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Nitrogen mineralization potential and nutrient availability from five organic materials in an atoll soil from the Marshall Islands by Deenik, J.L, Yost, R.S

“…Soil nutrient deficiencies are a major constraint to crop production on the low-lying atoll soils of the Marshall Islands. Despite the critical role organic…”
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Predicting the dissolution of rock phosphates in flooded acid sulfate soils by Yampracha, S, Attanandana, T, Sidibe-Diarra, A, Yost, R.S

“…Seven hundred sixty thousand hectares of acid sulfate soils in Central Plain of Thailand are used for rice (Oryza sativa L.) cultivation. Insufficient nutrient…”
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Identification of transport processes in column experiments using a frequency domain approach by Shuai, Xiufu, Yost, Russell S.

“…When a solute transport process is viewed as a dynamic system with input and output, a system identification technique can be used to study it from…”
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Quantifying the available soil phosphorus pool with the acid ammonium oxalate method by Guo, F, Yost, R.S

“…Measurement of the available soil P pool is required for making P fertilization recommendations. Extractants capable of estimating this P pool are needed. The…”
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State-space modeling to simplify soil phosphorus fractionation by Shuai, X, Yost, R.S

“…Soil P can be fractionated by methods such as the Hedley extraction method to help identify and quantify soil P. Measuring the increases in soil P fractions…”
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Food production in the Planalto of Southern Angola by Asanzi, C, Kiala, D, Cesar, J, Lyvers, K, Querido, A, Smith, C, Yost, R.S

“…Angola is recovering from nearly 30 years of war that has left the country without food, education, and economic means. The ProPlanalto Project of WorldVision,…”
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Aggregate size effects on the sorption and release of phosphorus in an Ultisol by Linquist, B.A, Singleton, P.W, Yost, R.S, Cassman, K.G

“…Despite extensive research on soil-P reactions, little is known of the effect of soil aggregation on these processes. This study was conducted to determine the…”
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Partitioning soil phosphorus into three discrete pools of differing availability by Guo, F. (University of Hawaii, Honolulu, HI.), Yost, R.S

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Response to fertilization and nutrient deficiency diagnostics in peach palm in Central Amazonia by Ares, A, Falcao, N, Yuyama, K, Yost, R.S, Clement, C.R

“…Peach palm (Bactris gasipaes Kunth) is increasingly grown in the tropics for its heart-of-palm and fruit. Determining fertilization response and diagnosing…”
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Predicting the dissolution of four rock phosphates in flooded acid sulfate soils of Thailand by Yampracha, S, Attanandana, T, Sidibe-Diarra, A, Srivihok, A, Yost, R.S

“…The dissolution of rock phosphate (RP) in soils, a reaction fundamental to the effectiveness of direct application of RP, depends on both the RP and soil…”
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Bactris gasipaes agroecosystems for heart-of-palm production in Costa Rica: changes in biomass, nutrient and carbon pools with stand age and plant density by Ares, A., Boniche, J., Molina, E., Yost, R.S.

“…Perennial tree crops develop through growth phases that differ in the rate of biomass and carbon build-up, and in the relative contribution of various pools…”
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Management-oriented modeling: optimizing nitrogen management with artificial intelligence by Li, MengBo, Yost, R.S

“…Increasing nitrate levels in groundwater have been attributed to inappropriate nitrogen (N) management. The application rates, timing, and methods of both N…”
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