[Plant production in farming [textbook]]

agriculture biologique beta vulgaris brassica napus cereal crops climatic factors control de enfermedades control de plagas crecimiento croissance cultivos de cereales danemark denmark dinamarca disease control enfermedades de las plantas ensemencement environmental protection escarda facteur climatique fertilisation fertilizer application fuel crops growth linum lutte antiravageur maladie des plantes malezas mangolds mauvaise herbe oil crops organic farming paille paja pest control pests of plants photosynthese photosynthesis pisum sativum plagas de plantas plant diseases plantas oleaginosas protection de l'environnement ravageur des plantes remolacha forrajera rotation culturale rotational cropping seed semence semillas siembra solanum tuberosum sowing straw subsidies subsidios subvention trifolium weed control weeds zea mays