Combined Basal and Foliar NPK Fertilization Effects on Soil Properties and Rice Production

Shiamita Kusuma Dewi; Winih Sekaringtyas Ramadhani; Naiya Aninda; Hery Novpriansyah; Afandi

doi:10.20527/actasolum.v4i3.3741

Authors

Shiamita Kusuma Dewi Soil Science Department, Faculty of Agriculture, Lampung University, Bandar Lampung, Indonesia https://orcid.org/0000-0001-6659-1737
Winih Sekaringtyas Ramadhani Soil Science Department, Faculty of Agriculture, Lampung University, Bandar Lampung, Indonesia https://orcid.org/0009-0004-2724-9858
Naiya Aninda Soil Science Department, Faculty of Agriculture, Lampung University, Bandar Lampung, Indonesia
Hery Novpriansyah Soil Science Department, Faculty of Agriculture, Lampung University, Bandar Lampung, Indonesia
Afandi Soil Science Department, Faculty of Agriculture, Lampung University, Bandar Lampung, Indonesia https://orcid.org/0000-0002-8212-3500

DOI:

https://doi.org/10.20527/actasolum.v4i3.3741

Keywords:

Paddy rice, Basal fertilizer, Foliar Fertilizer, Soil properties, Rice production

Abstract

Rice (Oryza sativa L.) productivity in intensively cultivated paddy systems is limited by soil fertility loss and low nutrient use efficiency of conventional NPK fertilization, which is prone to ammonia volatilization, leaching, and phosphorus fixation in tropical soils. Foliar NPK application is proposed to bypass soil nutrient losses and improve fertilizer efficiency, but its combined effects with basal fertilizer on soil properties and rice production in tropical paddy conditions are poorly understood. This study aimed to evaluate the effects of combined basal and foliar NPK fertilization on selected soil properties and rice production under tropical paddy conditions in Central Lampung. A field experiment was conducted using a Randomized Complete Block Design with 8 treatments and 4 replications, comprising combinations of basal and foliar NPK. Soil properties, including pH, soil dispersion ratio, and soil texture, alongside agronomic parameters, were associated with rice production. The results showed that combined basal and foliar NPK application significantly affected soil pH, with treatment H having a higher soil pH than the control and the standardized fertilizer. Combined application also significantly improved rice agronomic performance, with treatment H recording the highest rice production of 4.23 kg plot⁻¹, representing a 50% increase over the control treatment. These findings show that combining basal and foliar NPK fertilization can potentially manage nutrients to sustain soil fertility and enhance rice production in tropical paddy systems.

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