| dc.description.abstract | The objective of this research is to learn the number of land infiltration in some oil palm stand age class . This research was done in Patumbak farm , Perseroan Terbatas Perkebunan Nusantara II , Patumbak Estate , Deli Serdang Region , Sumatera Utara Province . The oil palm stand age class that used are ten years old , twenty five years old and thirty five years old are and every class age are given the treatment with 5 times replicant is Im , 2m , 3m , 4m , and 5m from the oil palm stem . The statistic analysis that used for this research is The Randomized Block Design . The stastistic analysis show that the measure distances don't affect to the infiltration rate , althought the nearer it is to the first stem the bigger its infiltration . The maximum infiltration average for that class in a row are 19,2 cm / hr , 79,2 cm / hr and 111,9 cm / hr with infiltration capacities is 5,28 cm / hr , 11,76 cm / hr and 16 ,8 cm / hr and the constant time that is needed in the thirty minute , fifty five minute and sixty minute | en_US |