Description: Das Projekt "Spatial variability of the effects of biochar on soybean-rhizobium symbiosis and plant growth on sandy soil" wird vom Umweltbundesamt gefördert und von Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e.V., Institut für Landnutzungssysteme und Landschaftsökologie durchgeführt. Limiting of water and nutrient retention capacity of soils in sandified regions are critical factors for crop growth. Biochar can increase water retention capacity and available water capacity of sandy soils. It does not only improve soil structure, but also contribute with additional cation and increased cation exchange capacity. On the other hand, the nitrogen availability in soil can get lower due to the high carbon/nitrogen ratio of the biochar and the resulting nitrogen immobilization. The nitrogen addition from fertilizer or legumes, through its nitrogen fixation ability, is necessary to fully utilize the benefit of biochar. But fertilizer application will cause more nitrogen leaching from soil to environment. Thus, the project aims to promote soybean-rhizobium symbiosis on sandy soil to remedy shortage of nitrogen. Soybean rhizobium symbiosis has high nitrogen fixation ability. The amount of nitrogen fixed by rhizobium soybean can be up to 450 kg nitrogen ha-1. Sandy field heterogeneity is also proved to be a problem to influence plant growth. A transect study is designed to separate treatment effect from field variability. In consequence, the main objectives of the project are: (I) to investigate the potential of soybean growth and biological nitrogen fixation on sandy soil with biochar application, (II) to improve the water and nutrient retention capacity in sandy soils, (III) to examine the spatial soil property and water variation in field
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Bodennährstoff ? Bodenstickstoff ? Landschaftsökologie ? Arzneimittel ? Bodenchemie ? Düngemittel ? Leguminosen ? Rhizobium ? Sojabohne ? Stickstoff ? Symbiose ? Main ? Pflanzenkohle ? Bodenkunde ? Bodenstruktur ? Bodenverbesserung ? Bodenwasser ? Kationen ? Rohstoffknappheit ? Sandboden ? Unterboden ? Bodenaustausch ? Austauschkapazität ? Ackerland ? Bodenqualität ? Düngung ? Flächennutzung ? Nährstoffkreislauf ? Stickstofffixierung ? Studie ? Boden ? Wasserknappheit ? Landwirtschaft ? Wasserressourcen ? Pflanzenwachstum ?
Region: Brandenburg
Bounding box: 13.01582° .. 13.01582° x 52.45905° .. 52.45905°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2015-11-01 - 2018-10-31
Accessed 1 times.