research area of
- Kumar, Anil, Scientific Officer, ICRISAT, CIMMYT
- Singh, Uma, CIP, CIP
ammonium
Concept
- Overview
Overview
subject area of
- A model for predicting the fate of nitrogen fertilizer in lowland ricefields. I: Theory
- Accumulation of ammonium-N and amino-N in theAzolla-Anabaena association
- Ammonia-oxidizing bacteria on root biofilms and their possible contribution to N use efficiency of different rice cultivars
- Ammonium Production in Submerged Soils and Sediments: The Role of Reducible Iron
- Ammonium dynamics of puddled soils in relation to growth and yield of lowland rice
- Ammonium fixation in some tropical rice soils
- Ammonium fluxes into plant roots: Energetics, kinetics and regulation
- Ammonium sulphate fertiliser increases larval populations of Anopheles arabiensis and culicine mosquitoes in rice fields.
- Availability of N from Casuarina residues and inorganic N to maize, using 15N isotope techniques
- Clay mineralogical and ammonium fixation characteristics of some tropical upland rice soils
- Comparative Ammonium and Potassium Fixation by some Wetland Rice Soil Clays as Affected by Mineralogical Composition and Treatment Sequence
- Contribution of fallow periods between rice crops to seasonal GHG emissions: effect of water and tillage management
- Correlations between indexes of soil nitrogen availability and nitrogen percent in plant, nitrogen uptake, and dry-matter yield of rice grown in the greenhouse
- Cultivar, nitrogen, and water effects on productivity, and nitrogen-use efficiency and balance for rice–wheat sequences of Bangladesh
- DYNAMICS OF AVAILABLE NITROGEN IN PADDY SOILS : I. Changes in Available N during Rice Cultivation and Origin of N
- Differences in uptake kinetics of ammonium and nitrate in legumes and cereals
- Different nitrogen rates and methods of application for dry season rice cultivation with alternate wetting and drying irrigation: Fate of nitrogen and grain yield
- EDTA extractable phosphorus in soils as related to available and inorganic phosphorus forms
- Effect of Sesbania, Azolla and rice straw incorporation on the kinetics of NH4, K, Fe, Mn, Zn and P in some flooded rice soils
- Effect of exogenous ammonium on glutamine synthetase, glutamate synthase, and glutamate dehydrogenase in the root of rice seedling
- Effect of fertilizer rate and form on the recovery of 15N-labelled fertilizer applied to wheat in Syria
- Effect of submergence on subsequent nitrification in a wetland cultivated rice soil
- Effects of Nitrification Inhibitors on Nitrogen Transformations, Other Than Nitrification, in Soils
- Efficiency of fertilizer use by a rain-fed wheat crop following split-application of fertilizer nitrogen
- Enhanced anther culture efficiency of indica rice (Oryza sativa L.) through modification of the culture media
- Error caused by carbon dioxide in determination of ammonium by direct steam distillation of tropical wetland rice soils
- Evaluation of some chemical extractants for determination of exchangeable ammonium in tropical rice soils
- Evaluation of some chemical indexes for predicting mineralizable nitrogen in tropical rice soils
- Evaluation of the nitrification inhibitor (nitrapyrin) application to a soil‐water system for conservation of ammonium released under water logged incubation of soils
- Field Studies Using 15N Dilution Techniques on Azolla N Contribution to Rice in Nigeria
- Fixed ammonium and carbon-nitrogen ratios of some semi-arid tropical Indian soils
- Immobilization, mineralization and availability to rice plants of nitrogen derived from heterotrophic nitrogen fixation in flooded soil
- Improvement in nitrogen availability, nitrogen uptake and growth of aerobic rice following soil acidification
- Influence of Different Cultivars on Populations of Ammonia-Oxidizing Bacteria in the Root Environment of Rice
- Influence of different nitrogen inputs on the members of ammonium transporter and glutamine synthetase genes in two rice genotypes having differential responsiveness to nitrogen.
- Is nitrate reduced to ammonium in waterlogged acid sulfate soil
- Isotope 15N enrichment of soil-ammonium N as a reference to estimate N2 fixation by stem and root-inoculated S. rostrata
- Long-Term Nitrogen Fertilization Impacts on Soil Bacteria, Grain Yield and Nitrogen Use Efficiency of Wheat in Semiarid Loess Plateau, China
- Modelling the quantitative evaluation of soil nutrient supply, nutrient use efficiency, and fertilizer requirements of wheat in India
- Movement and distribution of fertilizer nitrogen as affected by depth of placement in wetland rice
- Nitrification and mineralization potentials in a limed Ultisol in the humid tropics
- Nitrogen Availability Indexes for Submerged Rice Soils
- Nitrogen Fixation Associated with the Rice Plant Grown in Water Culture
- Nitrogen fixation throughout growth, and varietal differences in nitrogen fixation by the rhizosphere of rice planted in pots
- Nitrogen losses from labelled ammonium sulphate and Urea applied to a flooded rice soil
- Nitrogen mineralization in lowland rice soils: The role of organic matter quantity and quality
- Nitrogen supplying ability of some Philippine rice soils.
- Nitrogen-15 balance in transplanted and direct-seeded flooded rice as affected by different methods of urea application
- On the extent to which root properties and transport through the soil limit nitrogen uptake by lowland rice
- Organic Matter and Mineralizable Nitrogen Relationships in Wetland Rice Soils
- Phosphate solubilization by organic anion excretion from rice growing in aerobic soil: rates of excretion and decomposition, effects on rhizosphere pH and effects on phosphate solubility and uptake
- Phosphorus seed coating increases phosphorus uptake, early growth and yield of pearl millet (Pennisetum glaucum (L.) R. Br.) grown on an acid sandy soil in Niger, West Africa
- Plant-mediated processess to acquire nutrients: nitrogen uptake by rice plants
- Production and storage of N-enriched co-compost.
- Quantitative study on nitrification in flooded rice soil
- Readily available concentrations of selected micronutrients and harmful metals in soils of Sub-Saharan Africa
- Response of ammonia-oxidizing bacteria and archaea to biochemical quality of organic inputs combined with mineral nitrogen fertilizer in an arable soil
- Response of glutamine synthetase isoforms to nitrogen sources in rice (Oryza sativa L.) roots
- Simple modification of the Walkley-Black method for simultaneous determination of organic carbon and potentially mineralizable nitrogen in tropical rice soils
- Stream and shallow groundwater nutrient concentrations in an Ozark forested riparian zone of the central USA
- THE RELATIONSHIP BETWEEN COMBINED NITROGEN UPTAKES AND NITROGEN FIXATION IN AZOLLA‐ANABAENA SYMBIOSIS
- The chemistry of the lowland rice rhizosphere
- The effects of climate on decomposition of cattle, sheep and goat manure in Kenyan tropical pastures
- The importance of initial exchangeable ammonium in the nitrogen nutrition of lowland rice soils
- Tissue and nitrogen-linked expression profiles of ammonium and nitrate transporters in maize.
- Understanding the differential nitrogen sensing mechanism in rice genotypes through expression analysis of high and low affinity ammonium transporter genes.
- Use of modelling to understand plant nutrient acquisition
- Volatilization of ammonia from submerged tropical soils.