We studied the relationship between soil fertility indicator and angelica yield and quality by the methods of correlation analysis and path analysis. The results showed that, in Yunnan Province, the content of ferulic acid (major indicator of angelica quality) is 1.5-2.5 mg/g and single plant...

Survey on fertility of tea garden soil in Meizhou region indicates that tea garden soil has strong acidity; organic matter content remains at medium level; there is a severe lack oof available content of nitrogen (N), phosphorus (P) and potassium (K); available calcium (Ca) and magnesium (Mg)...

Strong gradients of decreasing soil fertility are found with increasing distance from the homestead within smallholder farms in Vihiga-Kenya. Nutrient use efficiency varies strongly between fields along these gradients of soil fertility. There is continuous accumulation of nutrients in areas...

In recent decades, high fertility of soils in the Republic of Moldova are subjected to more intensive accelerated degradation due to anthropogenic activity. Situation created causing further intensive development of land desertification processes and leads to worsening of the ecological...

This paper studies the implications of climatic uncertainty and poverty for resource degradation. In doing so, two partial models are considered. The first model focuses on productive inputs only, while the second model describes the role of soil conservation inputs. Both models are first...

This paper presents an analysis on economy-environmental interlinkages for Tanzania by using a computable general equilibrium (CGE) model based on a social accounting matrix. The purpose of the analysis is to include general equilibrium effects when evaluating two suggested policy measures meant...

In der deutschen und europäischen Klimapolitik hat der Humusaufbau und -erhalt in den letzten Jahren immer mehr an Bedeutung gewonnen. In diesem Kontext sollen in dem HumusKlimaNetz Maßnahmen zum Humusaufbau in der Praxis erprobt werden. Um den beteiligten Betrieben mögliche Maßnahmen zur...

We exploit plot data from the agricultural module of the third Malawi Integrated Household Survey (IHS-3) to investigate how organic cultivation techniques contribute to productivity of non-subsidized local maize and what to expect from using organic inputs on a larger scale. We approximate...