Since farmers often come from areas where trees do not play a role in agriculture and since they were also unfamiliar with Amazonian tree species, researchers spelled out the benefits of planting trees.
فأوضحوا ان تربة الغابة لا تستطيع احتجاز المواد المغذية التي تحتاج اليها المحاصيل الغذائية .‏