Determination of a Critical Nitrogen Dilution Curve for Winter Oilseed Rape
نویسندگان
چکیده
منابع مشابه
An Offline Algorithm for Site-specific Nitrogen Fertilization of Winter Oilseed Rape Based on Autumnal Canopy Nitrogen Uptake
Introduction Winter oilseed rape (WOSR) is grown in Germany on approx. 1.5 million ha (Statistisches Bundesamt 2010). Almost two-thirds of this is used as renewable resource for producing bio diesel (Fachagentur Nachwachsende Rohstoffe 2011). The bioenergy policy on the EU and national level therefore have an enormous impact on the profitability of this crop. The EU Directives 2009/28/EC and 20...
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Plant analysis is a very promising diagnostic tool for assessment of crop nitrogen (N) requirements in perspectives of cost effective and environment friendly agriculture. Diagnosing N nutritional status of rice crop through plant analysis will give insights into optimizing N requirements of future crops. The present study was aimed to develop a new methodology for determining the critical nitr...
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Nitrogen is essential for plant growth, and N fertilization allows farmers to obtain high yields and produce sufficient agricultural commodities. On the other hand, nitrogen losses potentially cause adverse effects to ecosystems and to human health. Increasing nitrogen use efficiency (NUE) is vital to solve the conflict between productivity, to secure the demand of a growing world population, a...
متن کاملInterrelationships among oilseed rape (Brassica napus L.) grain yield and weed growth under different nitrogen levels
Management of nitrogen fertilization in crops is one of the most important components of integrated weed management. A two-year field experiment was conducted to determine the direct effects of wild mustard aboveground biomass and N content of wild mustard on oilseed rape yield. A set of factorial treatments was arranged in a randomized complete block design with four replications. Treatments w...
متن کاملDevelopment of a Critical Nitrogen Dilution Curve of Double Cropping Rice in South China
The concept of critical nitrogen (Nc) concentration can be implemented to diagnose in-season plant nitrogen (N) status for optimizing N fertilizer management. The Nc dilution curves have been established for rice (Oryza sativa L.) grown in different climatic regions, yet no attempt has been made to develop the Nc dilution curve for double cropping rice regions. This study was undertaken to deve...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 1998
ISSN: 0305-7364
DOI: 10.1006/anbo.1997.0557