Compute the number of grafted durian seedlings needed in an area with a dimension of 150m x 120m if it is planted with a distance of 8m X 8m using Square or rectangular method and also Quincunx method of planting. How many kilograms of complete fertilizer (T-14) needed if the fertilizer requirements is 200 -200-200 grms N, P2O5 and K2O per plant
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