Managing dairy excreta as slurry can result in significant emissions of ammonia (NH3) and greenhouse gases (GHGs) during storage and thereafter. Additionally, slurry often has an imbalanced nitrogen (N) to phosphorus (P) ratio for crop fertilization. While various treatments exist to address emissions …

As an essential nutrient for food production, phosphate is largely used in fertilizers to enhance crop growth (Baishya et al., 2016; Hasanuzzaman et al., 2018). Regardless of its enormous demand, the only concentrated P source is phosphate rock and the resource is finite (Cordell & White, 2011; Smit …

The goal of this research was to find out if, and if yes, how, grazing management could be used to improve concentrate feed efficiency and thus farm income on commercial Irish dairy farms. The research was carried out on a commercial Irish dairy farm milking 240 crossbred cows on a dry farm with sandy …

The 'AgroCycle' project investigates whether a cooperation of farms can become self-sufficient in energy and fertilization by using manure and organic waste streams for the production of energy, green fuel and green fertilizers by means of anaerobic digestion (AD). In the project, the project partners …

The dairy sector in the Netherlands aims for a 30% increase in efficiency and 30% carbon dioxide emission reduction compared to the reference year of 1990, and a 20% share of renewable energy, all by the year 2020. Anaerobic Digestion (AD) can play a substantial role in achieving these aims. However, …

De populatie weidevogels in Nederland is de afgelopen 20 jaar afgenomen. Deze negatieve trend geldt ook voor de populatie in Noord-Nederland. Er zijn een aantal oorzaken aan te wijzen voor de afname van de weidevogels. De hoge kuikensterfte door onder andere predatie en het gebruiken van efficiënte landbouwmachines, …