KAJIAN BERBAGAI PENGGUNAAN LAHAN TERHADAP NISBAH DISPERSI DI PT GREAT GIANT PINEAPPLE

Abstract

In land preparation across various land uses, PT Great Giant Pineapple applies intensive soil tillage using agricultural heavy machinery. This practice leads to soil compaction and pore blockage, resulting in low water-holding capacity and high susceptibility to erosion under different land uses. Furthermore, such compaction tends to reduce the availability of water and nutrients required by plant roots in the soil. Therefore, this study was conducted to assess the soil’s resistance to erosion by measuring the dispersion ratio across different land uses. The objective of this study was to determine the effect of different land uses on the dispersion ratio at PT Great Giant Pineapple.. The research was conducted from September 2023 to April 2024 at PT. Great Giant Food, Central Lampung. It was designed using a survey method with purposive sampling. The treatments included: A = Cassava (growth phase), B = Cassava (harvest phase), C = Pineapple ex-Cassava, D = Pineapple First Crop (PC), E = Pineapple Ratoon Crop (RC), F = Banana, G = Pineapple ex-Banana, and H = Bamboo (control). Observed variables included dispersion ratio, microaggregate distribution, and soil texture. Data were analyzed qualitatively  with existing classification criteria. The findings showed that the cassava growth-phase land (A) had the lowest dispersion ratio at 27.86%, categorized as slightly dispersed, while the banana land (F) recorded the highest value at 50.12%, categorized as highly dispersed.