La excelente vocación hortícola del Valle del Guarco en Costa Rica ha convertido esta región en uno de los sitios con mayor utilización de agroquímicos del país. La producción hortícola en esta zona se caracteriza por la presencia de monocultivos en las laderas de montañas, con una alta propensión a la erosión del suelo por escorrentía. Se ha determinado que las hortalizas y las frutas abastecidas por productores de esta zona presentan el riesgo latente de residuos de plaguicidas.
Agrícola La Danta es una finca que destina el 42 % de su superficie a la producción de piña orgánica desde 2007; el resto de la propiedad se encuentra en áreas de conservación de bosque. En esta finca el cultivo de piña orgánica se ha realizado en suelos con baja fertilidad natural, por lo que se ha precisado de un manejo integrado de la nutrición de la planta, con el fin de cumplir con los estrictos estándares del mercado de exportación. Casi la mitad del territorio de América Latina y el Caribe lo conforman suelos pobres en nutrientes.
New plant breeding technologies (NPBTs), including genetically modified and gene-edited crops, offer large potentials for sustainable agricultural development and food security while addressing shortcomings of the Green Revolution. This article reviews potentials, risks, and actually observed impacts of NPBTs. Regulatory aspects are also discussed. While the science is exciting and some clear benefits are already observable, overregulation and public misperceptions may obstruct efficient development and use of NPBTs.
Background
Weather risk is a serious issue in the African small farm sector that will further increase due to climate change. Farmers typically react by using low amounts of agricultural inputs. Low input use can help to minimize financial loss in bad years, but is also associated with low average yield and income. Increasing small farm productivity and income is an important prerequisite for rural poverty reduction and food security. Crop insurance could incentivize farmers to increase their input use, but indemnity-based crop insurance programs are plagued by market failures.
Rising global demand for vegetable oil during the last few decades has led to a drastic increase in the land area under oil palm. Especially in South- east Asia, the oil palm boom has contributed to economic growth, but it has also spurred criticism about negative environmental and social effects. Here, we discuss palm oil production and consumption trends and review environmental, economic, and social consequences in different parts of the world. The oil palm expansion has contributed to tropical deforestation and associated losses in biodiversity and ecosystem functions.