Empty Fruit Bunch Oil Palm Ash and Biochar Improved Peat Soil Properties, NPK Status on Leaves, and the Growth of Immature Oil Palm Plantations.

Autor: Nuryani Hidayah Utami, Sri, Kusumawardani, Patria Novita, Maftu'ah, Eni, Noor, Muhammad, Masganti, Wakhid, Nur, Nurhayati, Sulaeman, Yiyi, Karolinoerita, Vicca, Abd El Rahim, Wafaa M.
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Zdroj: Applied & Environmental Soil Science; 12/5/2024, Vol. 2024, p1-13, 13p
Abstrakt: Oil palm cultivation on peatlands is of great importance for improving the wellbeing of farmers. Managing peatlands is challenged by poor nutrient availability and low nutrient retention. Applying ameliorants and fertilizers is required to enhance peat soil properties. This study aimed to assess the effect of biochar and ash from oil palm empty fruit bunches (OPEFBs), dolomite, and mineral fertilizers on peat soil quality and fertility. The field experiment was conducted on young oil palm cultivation in the peatland of Palalawan regency, Riau province, Indonesia, by using a randomized block design with two treatment factors. The first factor was the ameliorant: dolomite, dolomite + ash from OPEFB, and dolomite + biochar from OPEFB. The second factor was the dose of NPK compound fertilizer: NPK with standard recommendation dose, NPK with site‐specific recommended dose, and NPK with farmer's dose. The observed parameters included soil properties, leaf nutrient status, and midrib characteristics. Assessing the treatment effect used an analysis of variation and treatment mean comparison using the Tukey test. The results showed that ash and biochar from OPEFB improved peat soil pH, electrical conductivity, available phosphorus (P) and potassium (K), and the growth of oil palm plants. Applying NPK fertilizer using the site‐specific recommendations dose improved soil properties, leaf nutrient status (N, P, and K), and the growth of one‐year‐old oil palms. The utilization of ash and biochar from OPEFB may reduce agricultural lime on peatlands. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index