Exploratory Field Investigation of Ground Penetration by Aerial Planting-Darts and Subsequent Germinant Survival (Etudes Preliminaires sur le Terrain de la Penetration et de la Survie Ulterieure de Semis en Tubes (DARDS) Plantes par Aeronef),
NATIONAL AERONAUTICAL ESTABLISHMENT OTTAWA (ONTARIO)
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An aerial planting concept intended for forestry applications has been described and progress in its development as a system outlined. The key element in the system is a small dart, fabricated from paper and plastics, which serves as the means for conveying one or more seeds of the selected tree species to the ground in such a way as to enhance prospects for germination and survival. A small quantity of growth medium within the dart provides the seed or seeds with an immediate environment which has favourable properties, while the ability of the dart to penetrate the ground surface positions the emerging roots deep within the soil. This may be a significant advantage where mineral soil is overlain by humus or debris, as is often the case, or where the surface layers rapidly lose moisture.