Results 151 to 160 of about 2,806,447 (347)
Effects of some heavy metals on oats in pot experiments with three different soil types
Agricultural and Food Science, 1978 An account is given of two pot experiments, of which one has included all combinations of 5 heavy metals (cadmium, cobalt, lead, mercury and nickel), 3 rates of each metal, 2 rates of lime, and 3 types of soil (clay soil, peat soil and sandy soil).
Asbjørn Sorteberg
doaj
Microbial communities associated to rubber tree plantations along a chronosequence in North East Thailand. [P2.162] [PDF]
, 2014 Rubber tree (Hevea brasiliensis) is a crop of major socio-economic importance in Southern Asia as it represents a substantial source of income for small land holders.
Bräu, Lambert +8 more
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PEK14: A Kinesin‐4 Necessary for Male‐Derived Fertility in Arabidopsis thaliana
Cytoskeleton, EarlyView.ABSTRACT Of the 61 kinesins annotated in Arabidopsis thaliana, many are still without assigned function. Here, we have screened an insertional mutant library of Arabidopsis pollen‐expressed kinesins for fertility defects. Insertional mutants for three kinesins showed a significant reduction in seed set.
Isabella N. Mendes +6 more
wiley +1 more source
Ecography, EarlyView.Risk assessments of invasive species present one of the most challenging applications of species distribution models (SDMs) due to the fundamental issues of distributional disequilibrium, niche changes, and truncation. Invasive species often occupy only a fraction of their potential environmental and geographic ranges, as their spatiotemporal dynamics ...
Erola Fenollosa +4 more
wiley +1 more source
Spatial and temporal variability of plant-available soil water in Congo Basin and its relationship with tree species distributions [PDF]
, 2012 Regional-scale patterns of tropical rainforest tree composition can be due to climate (rainfall, dry season length), geology and/or soil properties (chemical fertility, available water). In Amazonia, soil fertility and dry season length appears to be the
Fayolle, Adeline +5 more
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Ecography, EarlyView.Globally, mountains are highly diverse ecosystems that serve as natural laboratories for testing ecological theories, while providing vital ecosystem services. Their biodiversity arises from the interaction between elevational gradients and topographic complexity, which generate strong variation in environmental conditions across short spatial scales ...
Laura C. Pérez‐Giraldo +3 more
wiley +1 more source
Soil Fertility and Nutrient Management on Spodosol for Oil Palm [PDF]
, 2010 The research was carried out in Oil Palm Plantation in Ngabang, Landak Distric, West Kalimantan in May 2008. Composite soil samples were taken from the soils, in which the oil palms indicated the nutrient disorders. The aims of the research were to study
Kasno, A. (Antonius) +1 more
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Hot spots or hot moments? Contextualizing the spatio‐temporal scale of research on animal inputs
Ecography, EarlyView.Mammals play important roles in redistributing elements across ecosystems, concentrating biogeochemical inputs across both space and time. However, research on zoogeochemical inputs is often constrained by logistical considerations, potentially limiting our knowledge of mammals' impacts on biogeochemical patterns and processes.
Kristy M. Ferraro +3 more
wiley +1 more source
Multi-functional roles of grassland in organic farming systems [PDF]
, 2002 This report was presented at the UK Organic Research 2002 Conference. Grassland supports commodity production and maintenance of soil fertility, as well as environmental, economic and social functions beyond the farm.
Hopkins, Alan, Morris, Carol
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