Results 71 to 80 of about 82,134 (215)
The effect of nitrogen fertilization on the humification of the peat in cultivated Sphagnum bogs
The paper is a report on the volume weights of the ash-free, dry peat on the cultivated Sphagnum bog at Leteensuo found in connection with different degrees of nitrogen fertilization.
Yrjö Pessi
doaj
MODELING ANIMAL AND FORAGE RESPONSE TO FERTILIZATION OF ANNUAL RANGELANDS
The response functions for forage, animal gain, and stocking rate were estimated from data obtained in a three-year fertilization experiment on California annual range.
Taggard, Ken L. +4 more
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NITROGEN CARRY-OVER IMPACTS IN IRRIGATED COTTON PRODUCTION, SOUTHERN HIGH PLAINS OF TEXAS
A dynamic optimization model which introduces an intertemporal nitrate-nitrogen residual function is used to derive and evaluate nitrogen fertilizer optimal decision rules for irrigated cotton production in the Southern High Plains of Texas.
Deussen, Curtis R. +3 more
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Nitrogen enrichment of a boreal forest [PDF]
The aim of this thesis was to investigate how nitrogen (N) enrichment influences ecophysiological processes involved in driving changes in understory species composition in Swedish boreal forests.
Forsum, Åsa
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Agriculture in rainfed dry areas is often challenged by inadequate water and nutrient supplies. Responses to these challenges include adequate fertilization, but it is unknown whether different nitrogen (N) rates from that commonly used in the Loess ...
Lingling Li +11 more
core +1 more source
【Objective】 N2O is a greenhouse gas 298 times more effective than CO2 at trapping heat in the atmosphere. Reducing its emission from agricultural soils hence plays a crucial role in mitigating global warming.
BAI Fangfang +5 more
doaj +1 more source
Economics of Pre-Plant, Topdress, and Variable Rate Nitrogen Application in Winter Wheat
Past research about the efficiency of nitrogen application in winter wheat (Triticum aestivum L.) based on source and timing has produced inconsistent results. The majority of the literature used data from few locations over short time periods.
Arnall, D. Brian +4 more
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Leaf area index of potato crop under three nitrogen fertilization treatments
Nitrogen fertilization has considerable effects on growth and yield of the potato crop. Additionally, leaf expansion is one of the most important growth parameters that can be used to optimize the management of agroecological resources.
Villa, Pedro Manuel, Pedro Manuel Villa
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Содержание белка и клейковины в зерне пшеницы „спельта” при разных уровнях азотного питания
Among cereals, wheat is very sensitive to nutrient supply, especially to nitrogen. The objective of our study was to determine optimal rates and dates of nitrogen fertilization on the background of Р60 К60 for Spelt (Zarya Ukrainy variety) on podzolic ...
ГОСПОДАРЕНКО Г. +1 more
doaj
Adoption of Cover Crops and Its Effect on Nitrogen Use by Farmers
With increasing environmental concerns, increasing population, changing tastes and preferences of consumers towards healthier foods, and with more food safety requirements, agronomic practices have changed gradually to provide not only food and fiber but
Westra, John V. +2 more
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