Results 51 to 60 of about 5,627 (218)

Mollisol Productivity Under Two Management Levels

open access: yes, 1987
This article 'Mollisol Productivity Under Two Management Levels' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice ...
Khatri, A. K., Sharma, A. K.
openaire   +1 more source

Soil, competition, and niche shifts shape the floral mosaic of an annual plant diversity hotspot

open access: yesAmerican Journal of Botany, Volume 113, Issue 3, March 2026.
Abstract Premise Plant species with affinity for harsh substrates often have well‐defined edaphic (soil) niches and are ideal for exploring questions of community assembly. Vertic clay soils are chemically and physically challenging to plant establishment and productivity, and annual plant communities associated with these soils of the San Joaquin ...
Emma R. Fryer   +5 more
wiley   +1 more source

Soil physical quality of Mollisols quantified by a global index [PDF]

open access: yesScientia Agricola, 2015
Indicators synthesizing the state of the structural quality and the function of the porous system are useful for assessing soil production capacity as well as the way it may serve natural ecosystems. This research aimed (i) to determine indicators of the state and function of the porous system, (ii) to use them to derive a global index to characterize ...
Ghiberto, Pablo Javier   +5 more
openaire   +5 more sources

Climatically driven loss of calcium in steppe soil as a sink for atmospheric carbon [PDF]

open access: yes, 2008
During the last several thousand years the semi‐arid, cold climate of the Russian steppe formed highly fertile soils rich in organic carbon and calcium (classified as Chernozems in the Russian system).
Aparin, B. F.   +7 more
core   +1 more source

Using Canopies indices to Quantify the Economic optimum nitrogen rate in Spring Wheat [PDF]

open access: yes, 2015
In-season N applications to spring wheat (Triticum aestivum L.) may increase profits and improve N fertilizer accuracy. The objectives were to develop a calibration tool employing normalized difference vegetative index (NDVI) and SPAD 502 chlorophyll ...
Diovisalvi, Nadia Rosalia   +3 more
core   +1 more source

Interactions Between Dissolved Organic Carbon and Aluminium Activity in Tropical and Temperate No‐Till Agroecosystems

open access: yesJournal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
Conceptual model of depth‐stratified soil acidification under long‐term no‐till in temperate (Washington, USA) and tropical (Brazilian Oxisol) systems. Nitrogen inputs promote surface acidification (↓pH) and increased Al3+ activity, while lime or silicate amendments modify base cation dynamics. Increased DOC–Al complexation reduces free Al3+ and alters
Joao A. Antonangelo, Richard T. Koenig
wiley   +1 more source

Effects of Long-Term Land Use Patterns on Labile Organic Carbon Fractions and Carbon Pool Management Index of Mollisols Humus Layers

open access: yesApplied Sciences
Land use patterns significantly influence the quantity and composition of litter in the soil humus layers, thereby affecting the dynamics of soil organic carbon.
Xinqu Duo, Jinggui Wu, Wei Cheng
doaj   +1 more source

Selective sorption of dissolved organic carbon compounds by temperate soils. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: Physico-chemical sorption onto soil minerals is one of the major processes of dissolved organic carbon (OC) stabilization in deeper soils. The interaction of DOC on soil solids is related to the reactivity of soil minerals, the chemistry of ...
Sindhu Jagadamma   +2 more
doaj   +1 more source

Chitin amendments eliminate the negative impacts of continuous cropping obstacles on soil properties and microbial assemblage

open access: yesFrontiers in Plant Science, 2022
Continuous cropping of soybean leads to soil environment deterioration and soil-borne disease exacerbation, which in turn limits the sustainability of agricultural production.
Yanli Fan   +11 more
doaj   +1 more source

Potensi Sumberdaya Lahan Pulau Sulawesi Mendukung Peningkatan Produksi Padi, Jagung, Dan Kedele [PDF]

open access: yes, 2014
. The reconnaissance soil survey and mapping programme at scale of 1: 250,000 in Indonesia has been successfully completed, marked by publication of the soil maps in 2012 for each province in Kalimantan, Sulawesi, Maluku, Nusa Tenggara, Java, and West ...
Hikmatullah, H. (Hikmatullah)   +1 more
core  

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