Keywords: tomatoes, lycopersicon esculentum, varieties, crop yield, spacing, fertilizer application, phosphorus, phosphate fertilizers, nitrogen, nitrogen fertilizers, EthiopiaFull text (outside link)
Keywords: agricultural policy, agricultural legislation, rural legislation, European Union, Slovenia, farmyard manure, fertilizer application, nitrogen, humus, micronutrient fertilizers, soil fertilityFull text (outside link)
Keywords: allium porrum, leek, weather, yields, nitrogen fertilizers, proximate compositionFull text (outside link)