Search Results - "Yost, R S"

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…”
Get full text

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…”
Get full text

Changes in Phosphorus Fractions in Soils under Intensive Plant Growth by Guo, F., Yost, R. S., Hue, N. V., Evensen, C. I., Silva, J. A.

“…The total quantity of P and plant‐available P often differ greatly in soils of the tropics, which typically range in weathering intensity. Assessing available…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

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…”
Get full text

Predicting Soil Phosphorus Buffer Coefficients Using Potential Sorption Site Density and Soil Aggregation by Wang, X., Jackman, J. M., Yost, R. S., Linquist, B. A.

“…The phosphorus (P) buffer coefficient, a ratio of the increase in extractable P to the amount of applied fertilizer P, is a source of considerable uncertainty…”
Get full text

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…”
Get full text

Lichen sulfur contents as bioindicators of crop sulfur: deficiency or luxury uptake by Fox, R.L, Yost, R.S, Hue, N.V, Smith, C.W, Caldwell, R.M

“…The most important, immediate source of sulfur (S) for agricultural crops is the soil, but the soil supply is augmented by anthropogenic and natural S…”
Get full text

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…”
Get full text

Biomass production and nutrient removal by tropical grasses subsurface drip-irrigated with dairy effluent by Valencia-Gica, R. B., Yost, R. S., Porter, G.

“…Effluent lagoons on dairy farms can overflow and potentially pollute adjacent land and associated water bodies. An alternative solution to effluent disposal is…”
Get full text

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…”
Get full text

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…”
Get full text

Fertilization response and nutrient diagnosis in peach palm (Bactris gasipaes): a review by Deenik, J, Ares, A, Yost, R S

“…Peach palm (Bactris gasipaes Kunth) is a relatively new food crop with great potential for the humid tropics. Native to tropical America, it is commercially…”
Get full text

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…”
Get full text

Rietveld estimates of mineral percentages to predict phosphate sorption by selected Hawaiian soils by Jackman, J.M. (University of Hawaii, Honolulu, HI.), Jones, R.C, Yost, R.S, Babcock, C.J

“…Predicting P sorption by weathered soils in order to manage soil, crop, and natural resources has been an important but elusive goal of soil science for…”
Get full text

Growth potential of twelve Acacia species on acid soils in Hawaii by Cole, Thomas G., Yost, Russell S., Kablan, Richard, Olsen, Thomas

“…Reforestation of degraded tropical sites is often hampered by soils of high acidity, high aluminum saturation, and low fertility. To evaluate the possibility…”
Get full text

PHOSPHORUS AND LIME REQUIREMENTS OF TREE CROPS IN TROPICAL ACID SOILS: A REVIEW by Yost, R. S., Ares, A.

“…Soil P deficiency and acidity are two main limitations for trees growing on highly-weathered soils in the tropics. Sound decisions require understanding of the…”
Get full text

Spatial variation of soil properties and rice yield on recently cleared land by Trangmar, B. B., Yost, R. S., Wade, M. K., Uehara, G., Sudjadi, M.

“…Crop yields on cleared forest land of the humid tropics are often highly variable due to spatial heterogeneity of soil properties. This study aimed to…”
Get full text