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. If you put them in with the long side going down, then they will almost surely die. 2  Don't bury seeds too deep. Just push them into the dirt and brush a bit of soil on top of them. 3  Soil must be kept loose.
Rambutan trees grow best in deep, well drained soils, rich in organic matter. They can grow in heavy soils, if well drained, and in sandy soils, if these have good organic matter. A pH of 4.5-6.5 is suitable. At higher pH, iron and zinc deficiencies are common resulting in chlorosis and leaf yellowing. Varieties.