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.
Plant the seed corn at a depth of about 1 1/2 to 2 inches deep when the soil temperature reaches at least 55 degrees Fahrenheit; cooler temperatures keep the kernels from germinating and the seed will rot in the ground. Space the seeds at least 6 inches apart in both directions in 3-by-5-foot sections.