American football field is almost exactly 100 meters from one end line to the opposite goal line. Imagine a square of that length on each side, and you've got an area of one hectare. The hectare, symbol ha, is a unit of area equal to 10 000 m? and used exclusively for measuring land. The usual pronunciation rhymes with "air." One hectare equals (100 m)?, or 1 hm?, so envision a square, the length of a football field on each side, for an idea of the size of a hectare.

A hectare equals 2.471 acres or you can also think of a hectare as an area of land 100 meters wide by 100 meters long. See similar questions...

Answer- BGA is applied @ 10-15 kg per hectare of rice after 7 days of transplanting with 2.5 cm of standing water. See similar questions...