Direct uptake of soil nitrogen by mosses

Uptake of salmon-derived nitrogen by mosses and liverworts in coastal British Columbia

Throughout forested watersheds bordering the North Pacific, anadromous salmon (Oncorhynchus spp. ) are transferred into coastal forests by numerous predators and scavengers with remnants providing an important nutrient subsidy to riparian zones. The contribution of these nutrients to mosses and liverworts, which are the dominant ground cover of coastal forests, has not been investigated. We exa...

Interaction of different irrigation strategies and soil textures on the nitrogen uptake of field grown potatoes

Nitrogen (N) uptake (kg ha-1) of field-grown potatoes was measured in 4.32 m2 lysimeters that were filled with coarse sand, loamy sand, and sandy loam and subjected to full (FI), deficit (DI), and partial root-zone drying (PRD) irrigation strategies. PRD and DI as water-saving irrigation treatments received 65% of FI after tuber bulking and lasted for six weeks until final harvest. Results show...

Effect of Organic and Inorganic Sources of Nitrogen on Maize Yield,N Uptake and Soil Fertility

mineral and organic N sources (farmyard manure) on maize yield, N uptake and soil fertility was assisted in the field experiment carriedout on silty clay loam soil at new developmental farm of the university of agriculture, Peshawar Pakistanduring 2014. Combined dose of N provided from all sources was applied @150 kg ha-1. There were four replications and 6 treatmentsi.e., (T1) control, (T2) 15...

Yield and nitrogen uptake of soybeans and safflower plants grown on alkaline soil as affected by iron chelate, CCC and nitrogen

Nitrogen Determinations by Direct

All methods for the determination of urea in urine dependent on purely chemical processes for the hydrolysis of the urea are apparently destined to become antiquated, if not forgotten, because of the abundant supply of urease now available for such hydrolysis. It would be easy to devise an excellent direct Nesslerization method for the determination of urea in urine on the basis of the Folin-Pe...