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Crop rotation is based on the assumption that the persistence of the same type of plant on the ground, in the long run exhausts its nutritional possibilities, which must therefore be replenished by subsequently cultivating different types of crops. Vegetables are divided into strong consumers of fertilizer, such as cabbages, potatoes and courgettes, medium, such as beets, fennel and lettuces and weak as beans and legumes. Starting from this subdivision, the flowerbeds will be organized in three sectors, reserved respectively for strong, medium and weak consumers. Every year the crops will be moved to a sector not to tire the land, to complete the four-year period. The earth can recover its nutritional values that are reintegrated thanks to the production of nitrogen by plants with low consumption. In addition to the temporal rotation, the intercropping can also be implemented, ie the planting in the same spaces of complementary plants with respect to maturation times and nutritional characteristics.