A study of landform suitable for growing of pineapple fruits (smooth cayanne) in Phusawan watersheds area , Kaengkrachan district, Phetchaburi province. Samples were collected from pineapple yield with random sampling Randomized complete block design (RCBD) plots each 12 repeated planting on the rolling plain. and analyzed on growth of the pineapple in plots S1-S6 and analyze the physical characteristics. and chemical characteristics products of pineapple, from the product of pineapples first ratoon and product of pineapples second ratoon.