Indirect competition is often mediated by plant responses to herbivore feeding damage and is common among phytophagous insect species. Plant-mediated responses may be altered by abiotic conditions such as nutrient supply, which can affect plant growth, morphology, and the concentration of primary and secondary metabolites. Nutrient supply can be manipulated by the type and amount of fertilizer ...

The latter two principles protect the soil resource on which all food and fibre production ultimately depends. However, agricultural production systems differ from ‘natural’ or undeveloped systems in that they can be considered to be ‘leaky’ with respect to nutrients. This is inevitable, due to nutrient removal in harvested product, but inappropriate fertiliser management can exacerbate the ‘le...

the undesirable negative consequences of conventional farming have lead to the need and emphasis for new sustainable agricultural production techniques. organic farming has arisen to be considered as one of the sustainable agricultural systems. agricultural experts play an important role in extension and spread of the system. the research goal is to investigate the effective factors on expert&a...

irrigular land use, land degradation and increasing yield per surface area unit supplicate to be inevitable optimal land utilization.so land evaluation, planning and management to be necessary to achieve a sustainabledevelopment.following this trend, microleis (mediterranean land evaluation information system)has evolved towards an agro-ecological decision support system.the goal of this study ...

Over the years, practice of agriculture has transformed from era traditional to that intensive in bid boost production index will satisfy food needs globally growing population. However, continuous and exaggerated use chemical fertilizers pesticides resulted major adverse impacts on environmental safety, whereas most techniques for reclamation natural soil nutrients, including shifting cultivat...

Researchers have put forward agricultural biotechnology as one possible tool for increasing food production and making agriculture more sustainable. In this paper, it is investigated how key actors in the Swedish food supply chain perceive the concept of agricultural sustainability and the role of biotechnology in creating more sustainable agricultural production systems. Based on policy docume...

One of the objectives of agricultural development in Botswana is the increase of agricultural productivity in both arable and livestock production in order to increase farm incomes and thus help to make agriculture a sustainable activity. This paper looks at the challenges that Botswana faces in meeting this objective while minimizing any land degradation that may accompany the process of incre...

enough food, feed, and fi ber to meet increasing demand in conditions of changing climate and scarce natural resources. Innovative policies and new farming approaches based on a strong scientifi c foundation are needed to tackle the challenge of increasing production while also meeting environmental, economic, and social goals. This report, produced with the support of the W.K. Kellogg Foundati...

Abstract This special issue presents the outcomes from “ Designing sustainable and circular agricultural systems for year 2100 ,” joint scientific workshop of ISOFAR, Thünen-Institute, INRA-Morocco, which was held November 14 to 16, 2019 in Marrakesh, Morocco. Nineteen scientists a broad array background nationalities came together with understanding that food security globally is at risk, espe...