[Grapevine manuring depending on soil type and nutrient supply in soil]

abonos verdes analyse de sol application rates brassica napus cultivos de invierno culture d'hiver dose d'application engrais vert exigence des plantes fertilidad del suelo fosforo green manures magnesio magnesium necesidades de las plantas phosphore phosphorus plant requirements potasio potassium soil fertility soil testing textural soil types tipos texturales de suelos triticum aestivum type de sol textural vicia sativa vitis vinifera winter crops