PENGARUH PUPUK NPK MUTIARA TERHADAP PELINDIAN FOSFOR DAN KALSIUM PADA TANAH PODSOLIK MERAH KUNING DAN TANAH SULFAT MASAM

Authors

  • Basuki Universitas Palangka Raya
  • Ruben Tinting Universitas Palangka Raya
  • Gusti I. P. Wijaya Universitas Palangka Raya

Keywords:

Acid Sulphate, Leaching, Podzolic, NPK Mutiara

Abstract

This study aims to determine the effects of NPK Mutiara dose on leaching of phosphorus and calcium in red yellow podzolic (RYP) soil  and acid sulphate soil (ASS). This research was conducted for 6 weeks from March to April 2020, at the Laboratory of the Department of Agronomy, Faculty of Agriculture, Palangka Raya University. This research using completely randomized design (CRD) used a single factor  NPK Mutiara dosage. There are with  6 treatments, namely P1 =  0 kg.ha-1 at RYP; P2 = 150 kg.ha-1 at RYP; P3 = 300 kg.ha-1 at RYP; P4 = 0 kg.ha-1 at ASS; P5 = 150 kg.ha-1 at ASS; P6 = 300 kg.ha-1 at ASS. Each treatment was repeated 3 times. The measured variables were the P and Ca content in the soil and leaching water. Data were analyzed by analysis of variance at the levels ? = 0,05 and ? = 0,01. If there is a significant effect on the treatment, the Honest Significant Difference  test is carried out at ? = 0,05. The results showed that the higher the NPK Mutiara dosage increased the P2O5 and Ca-exchanged content in RYP and ASS. The P2O5 and Ca-exchanged content in RYP soil was lower than that of ASS. The higher the NPK Mutiara dosage increased the dissolved P2O5 and Ca content in the RYP and ASS soil washing water. The amount of lost P2O5 from RYP soil is tends to be greater than ASS and the amount of Ca lost from RYP soil is tends to be smaller than ASS

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Published

2021-03-31