Intercropping has been a common practice in agriculture since antiquity but with the rising use of agricultural machinery monocultures have become more prevalent. The purpose of the following work was to study the effect of coexistence of various useful plant species in the olive grove and how to diminish the human impact on nature. The spontaneous vegetation in the olive grove reduces soil erosion and improves soil fertility. Plants participate in the nutrient cycle, increase biodiversity and can be used as additional crop products. Some plant species can work as insect repellents while others can attract insects that parasite the olive tree pests. A special focus was given to wild asparagus and jujube, the chapter on wild asparagus also describes the process of cultivating it from seed to fully grown plant. The asparagus itself has no special benefit in the olive grove but can work as additional crop product. The jujube on the other hand can be a valuable addition as it attracts the insect Psytalia conclor which parasites the olive fruit fly.
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