Organic farming is a comprehensive production management system that fosters and
improves the health of agroecosystems, encompassing biodiversity, biological cycles, and …

Potato has been recognized as a crop of importance in developing countries for ensuring
human nutrition and food security. The dwindling natural resources, low fertility of soils, the …

Nitrogen (N) is an essential element in plant growth and productivity, and N fertilizer is
therefore of prime importance in cultivated crops. The amount and timing of N application …

Grain legume-based cropping systems need to be designed holistically by taking profit of
their advantages (eg symbiotic fixation of N 2) while reducing environmental risks. In this …

Negative nitrogen balance represents a major factor causing low potato yield in potato
growing areas of Kenya while its excessive surplus poses a significant environmental …

Background and aims Cover crops can efficiently increase nitrogen (N) recycling in
agroecosystems. By providing a green-manure effect for the next crop, they allow reduced …

The long term effects of repeated catch crops on N dynamics in arable farming were
assessed using mid-term experiments and long-term simulations. The soil-crop model …

Identification of critical nitrogen (N) application rate can provide management supports for
ensuring grain yield and reducing amount of nitrate leaching to ground water. A five-year …

Abstract The Columbia Basin in the Pacific Northwest is a highly productive area for
potatoes in the United States. Here, nitrate is the most frequently documented groundwater …

The Root Zone Water Quality Model (RZWQM) is a one-dimensional process-based model
used for simulating major physical, chemical, and biological processes in agricultural …