Minus one test kesuburan tanah inceptisol, ultisol, dan andisol untuk tanaman nenas

Abstract

Pineapple has a capability to grow on different soil types. Even, it still has low productivity in land with low fertility. However, the highest productivity of pineapple is obtained in land with high fertility. Soil fertility correlates withavailability and composition of N, P and K nutrients. Moreover, Those nutrients are realizet as limiting factors of plant growth and productivity in tropical area. The objetives of this research was to prove the potential of N, P and K nutrients as limiting factors in InceptisoJ.:.oarmaga, InceptisoJ-Ciawi, UltisoJ-Jasinga, and AndisoJ-Ciapus on pineapple crops. Besides, it will be proved the potential differences of pineapple growth in InceptisoJ-Dannaga, InceptisoJ-Ciawi, Ultisol-Jasinga, and AndisoJ-Ciapus. The research was conducted using split plot randomized blocked design with 4 main plots, InceptisoJ-Darmaga (D), lnceptisoJ-Ciawi (T), Ultisoi-Jasinga (J), and Andisol-Ciapus (C). While splitted plot that Minus-One Test of N-P-K fertilizer apJiied consisted of five treatments, no fertilizer (TP, control), complete fertilizer without N (PK), complete fertilizer without P.{NK), complete fertilizer without K {NP), and complete fertilizer {NPK). The results revealed that N, P, and K nutriets were required for increasing the pineapple growth in •1nceptisoJ-Dannaga, Inceptisoi-Ciawi, Ultisoi-Jasinga, and Andisoi-Ciapus. They were required different dosis ofN-P-K fertilizer for obtaining the optimal growth of pineapple. Moreover, the pineapple was growth very well in Jnceptisol-Dannaga compare to lnceptisol-Ciawi, Ultisol-Jasinga, and Andisoi-Ciapus.