18 December 2018 - Ohio, US-based Xanthic
Physical, chemical, and biological attributes of a Xanthic
Oxisol after forest conversion to rubber tree plantation in the Amazon.
The soils were classified according to Soil Taxonomy (Soil Survey Staff 2014) and World Reference Base (WRB) for Soil Resources (IUSS Working Group WRB 2014) as (Soil Taxonomy/WRB): Typic Dystrudept/(Sideralic Dystric Cambisol (Loamic); Anionic Acrudox/(Ferri tic Gibbsic Rhodic Geric Ferralsol (Dystric, Clayic); Inceptic Hapludult/ (Xanthic
Acrisol (Clayic, Differentic); Typic Hapludox/(Rhodic Ferralsol (Dystric, Clayic); Typic Endoaquent/(Dystric Tidalic Gleysol (Clayic, lnclinic, Uterquic); Rhodic K.andiudult-1/ (Rhodic Acrisol (Clayic, Cutanic); Rhodic Kandiudult-2/(Acric Ferralic Dystric Nitisol (Densic).
In Nova Olinda do Norte, the dominant vegetation is classified as evergreen lowland tropical moist forest and the predominant soils are Xanthic
Ferralsols (allic yellow latosol in the Brazilian system), which are heavily weathered, acidic, and very poor in nutrients such as P, Ca, and K.
Charcoal and smoke extract stimulate the soil microbial community in a highly weathered xanthic
Ferralsols are the predominant soil type, in which Xanthic
Ferralsols dominate the 1 000-1 800 m altitudinal zones, and Rhodic Ferralsols are dominant below 1 000 m altitudinal zones (Tran 1991, Vo et al.
ternatea L.) was sown in early spring (October) of 2008 in a 900 [m.sup.2] area containing Xanthic
and Eutrophic Oxisols with 10% declivity located in Northern Rio de Janeiro State (21[degrees]42'33" S and 41[degrees]20'23" W; 12 m of altitude), Brazil.
A study of the possible use of cassava mill wastewater as an agricultural resource under laboratory conditions revealed that the concentration of exchangeable calcium, magnesium, potassium, and sodium increased linearly in three typical soils of Minas Gerais, spodic Orthic Quartzarenic Neosol with moderate A horizon, typical dystrophic yellow Latosol (Xanthic
Hapludox) with moderate texture of A horizon, and typical dystrophic red-yellow Latosol (typical Hapludox) very clayey, alic mesoferric, with moderate texture of A horizon, treated with cassava wastewater .
The saltwater fish is believed to be an Xanthic
Undulate Trigger (Balistapus undulates) that was recently collected in Lombok Strait, a strait connecting the Java Sea to the Indian Ocean.
This communication reports the discovery and temporal persistence of naturally occurring xanthic
(yellow) variants of the endangered twoline pupfish Cyprinodon bifasciatus, one of two pupfishes endemic to the Cuatro Cienegas basin, Mexico (Miller, 1968; Carson, 2009a, b).