CompostCompost is a mixture of ingredients used as plant fertilizer and to improve soil's physical, chemical, and biological properties. It is commonly prepared by decomposing plant and food waste, recycling organic materials, and manure. The resulting mixture is rich in plant nutrients and beneficial organisms, such as bacteria, protozoa, nematodes, and fungi. Compost improves soil fertility in gardens, landscaping, horticulture, urban agriculture, and organic farming, reducing dependency on commercial chemical fertilizers.
Lutte biologiquevignette|Larve de coccinelle se nourrissant de cochenilles.La lutte biologique est une méthode de lutte contre les nuisibles tels que les ravageurs des cultures (insectes, acariens, nématodes, etc.), les maladies (fongiques, bactériennes, virales, etc.), ou les mauvaises herbes (plantes adventices) au moyen d'organismes vivants antagonistes, appelés agents de lutte biologique (qui appartiennent au groupe des auxiliaires des cultures).
