Description: Das Projekt "Water management method for non-closed crop production" wird vom Umweltbundesamt gefördert und von Bundesforschungsanstalt für Landwirtschaft Braunschweig-Völkenrode, Institut für Technologie und Biosystemtechnik, Abteilung Biosystemtechnik durchgeführt. General Information: Background: In the Southern European countries there is an enormous lack of water. For agricultural purposes one tries to use the available water as efficient as possible. On the other hand, nutrient solved in the irrigation water may leach into ground and surface water. The objectives are: The objective of the project is to develop and to do research on a new water management method for non-closed crop production systems. It is based on the concept of keeping the water available for plants in the top layer of the soil, where the plant roots are located. Beneath this layer, there will be an inactive soil layer which acts as a buffer between the root zone and the ground water. The topsoil and the ground water will so hydrologically be disconnected. The open crop production system will thus behave as a 'Virtual closed system for water and fertilisers' avoiding excessive use of limited water resources and leaching of fertilisers. Short description of the project: The project will focus on three main targets: - the development of a multi-point, multiple dielectric sensor to measure water tension, water content and electric conductivity - the development of an extensive 2-dimensional hydraulic model for water movement in soil and - the development of 2 algorithms for water management, one for water use efficiency or water conservation and one for minimum leaching. The sensor, model, algorithms and irrigation system will be evaluated under experimental and practical conditions. Prime Contractor: Dienst Landbouwkundig Onderzoek, Institut of Agricultural and Environmental Engineering; Wageningen; Netherlands.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Messgerät ? Niederlande ? Düngemittel ? Nährstoff ? Sensor ? Landwirtschaftliches Brauchwasser ? Main ? Bodenwasser ? Hydraulik ? Landwirtschaftliche Nutzung ? Pflanzenproduktion ? Rhizosphäre ? Pflanzenwurzel ? Bewässerungssystem ? Oberboden ? Bodenfeuchte ? Bewässerung ? Leitfähigkeit ? Management ? Bewässerungsfeldbau ? Bodenbildung ? Bodenhorizont ? Bodenwasserhaushalt ? Strömungsmodell ? Umwelttechnik ? Wasserdargebot ? Wassergehalt ? Wassernutzung ? Wasserspeicher ? Wasseranalyse ? Trockengebiet ? Grundwasser ? Modellierung ? Düngung ? Gewässergrund ? Wasserknappheit ? Wasserwirtschaft ? Hydrologie ? Landwirtschaft ? Wasserbewegung ? dielectric-sensor ? electric-conductivity ? Saugspannung ? hydraulic-model ?
Region: Lower Saxony
Bounding box: 9.16667° .. 9.16667° x 52.83333° .. 52.83333°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1996-03-01 - 2000-02-28
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