a person trained and skilled in the design, construction, and use of engines or machines, or in any of various branches of engineering: a mechanical engineer; a civil engineer. a person who operates or is in charge of an engine.
The most important things to remember with planting rambutan seeds are: 1  Seeds must be put in flat. 2  Don't bury seeds too deep. 3  Soil must be kept loose.  Soil must be 1  loamy. It will take about 10-21 days for the rambutan seed to germinate.
Germinating rambutan seeds and properly caring for the seedlings give the plant a healthy start. Choose a fertile growing medium, such as topsoil mixed with compost or manure. The added nutrients help speed up germination and seedling growth. Plant the seed horizontally with the flat side facing down.