Nitrogen effects on species’ contributions to grazed pasture mixtures under nitrogen loss and application restrictions

Physiological Response of Quinoa to Nitrogen Application under Salinity Conditions

Salinity stress is one of the major abiotic stresses which injures plants by limited water absorption and nutrient imbalance and limits crop growth. In order to study the effect of nitrogen fertilizer on physiological traits of quinoa at high salt concentrations, a greenhouse experiment was conducted in a factorial arrangement based on a randomized complete block with three replications in 2019...

Simulation of mitigation strategies to reduce nitrogen leaching from grazed pasture

Strategies to reduce nitrogen leaching losses from pastoral farming in the Lake Taupo catchment are required to address declining water quality in the lake. This study used a biophysical whole farm simulation model, EcoMod, to explore the potential for four mitigation strategies to reduce N leaching in a soil and climate typical of the region. The strategies were use of: a nitrification inhibit...

Nitrogen Input Effects on Herbage Accumulation and Presenceof Pasture Plant Species

Effects of nitrogen application rate and a nitrification inhibitor dicyandiamide on methanotroph abundance and methane uptake in a grazed pasture soil.

Methane-oxidizing bacteria (methanotrophs) in the soil are a unique group of methylotrophic bacteria that utilize methane (CH4) as their sole source of carbon and energy which limit the flux of methane to the atmosphere from soils and consume atmospheric methane. A field experiment was conducted to determine the effect of nitrogen application rates and the nitrification inhibitor dicyandiamide ...

Effects of manure nitrogen on vegetables’ yield and nitrogen efficiency in Tanzania

Due to an increasing demand of leaf vegetables, and hence their economic importance in the tropics, it is very common that excessive fertilizer N rates are applied to vegetable gardens and fields to attain high yield. This calls for more information on their nutrient requirements. In this study, we designed experiments to explore the effect of organic N levels on the yield and agronomic N use e...