Evaluasi Performa Aplikasi Irigasi Berbasis Fine Bubble Technology Terhadap Produktivitas Tanaman Padi

Abstract

Ketersediaan oksigen terlarut yang rendah pada lahan sawah tergenang dapat menghambat respirasi akar dan penyerapan hara tanaman padi. Penelitian ini bertujuan mengevaluasi pengaruh Fine Bubble Technology (FBT) terhadap kadar oksigen terlarut, pertumbuhan, dan hasil tanaman padi varietas Sintanur. Penelitian dilaksanakan pada Februari–Juni 2026 di Kinjiro Farm, Bogor, menggunakan empat perlakuan, yaitu FBT dengan Irigasi Bawah Permukaan (FBT-IBP), FBT dengan Irigasi Permukaan (FBT-IP), Non FBT-IBP, dan Non FBT-IP. Parameter yang diamati meliputi kadar oksigen terlarut, tinggi tanaman, jumlah anakan, dan produktivitas tanaman. Hasil penelitian menunjukkan bahwa FBT meningkatkan kadar oksigen terlarut sebesar 70,5% pada FBT-IBP dan 54,1% pada FBT-IP. Perlakuan FBT-IP menghasilkan pertumbuhan dan produktivitas tertinggi dengan tinggi tanaman 137,1 cm, jumlah anakan 14 batang per rumpun, dan produktivitas gabah 3,48 ton/ha, sedangkan perlakuan tanpa FBT hanya menghasilkan 2,66–2,87 ton/ha. Kadar oksigen terlarut berhubungan positif dengan pertumbuhan dan produktivitas tanaman. Hasil penelitian menunjukkan bahwa penerapan FBT yang dipadukan dengan pengelolaan tinggi muka air yang tepat berpotensi meningkatkan produktivitas padi melalui perbaikan aerasi zona perakaran.

Low dissolved oxygen availability in flooded rice fields can inhibit root respiration and reduce nutrient uptake by rice plants. This study aimed to evaluate the effect of Fine Bubble Technology (FBT) on dissolved oxygen concentration, growth, and yield of Sintanur rice. The experiment was conducted from February to June 2026 at Kinjiro Farm, Bogor, using four treatments: FBT with Subsurface Irrigation (FBT-SSI), FBT with Surface Irrigation (FBT-SI), Non-FBT-SSI, and Non-FBT-SI. The observed parameters included dissolved oxygen concentration, plant height, number of tillers, and crop productivity. The results showed that FBT increased dissolved oxygen concentration by 70.5% in the FBT-SSI treatment and by 54.1% in the FBT-SI treatment. The FBT-SI treatment produced the highest growth and productivity, with a plant height of 137.1 cm, 14 tillers per hill, and grain productivity of 3.48 t ha?¹, whereas treatments without FBT produced only 2.66–2.87 t ha?¹. Dissolved oxygen concentration was positively associated with plant growth and productivity. The results indicate that the application of FBT combined with appropriate water-level management has the potential to increase rice productivity through improved root-zone aeration.