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All Journal Jurnal Dinamika Pengabdian (JDP) Jurnal Biologi Tropis
Alhaddad, Abdulmujib
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Changesin Carbon to Nitrogen Ratio (C/N) in Peatlands of Pontianakas Influenced by Land Management Duration Alhaddad, Abdulmujib
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.11434

Abstract

Peatland farmers in Pontianak have traditionally applied combustion ash and organic matter to increase soil pH and nutrient availability, thereby enhancing crop productivity. Poultry manure is essential for providing essential macro- and micronutrients. Although changes in peat soil properties due to agricultural use are known, the specific attributes affected and the magnitude of these changes remain poorly documented. This study aimed to: (1) determine changes in the carbon-to-nitrogen (C/N) ratio in peat soils cultivated under different land management practices, and (2) assess temporal changes in the C/N ratio associated with different cultivation durations. The study employed a direct survey method. Results showed that differences in peat soil characteristics between managed and unmanaged land were primarily evident in the 0–20 cm and 20–40 cm layers. Changes in the C/N ratio were caused by intensive management practices involving large amounts of combustion ash, fish waste, shrimp shells, lime, urea, and KCl. In general, management duration did not significantly affect the C/N ratio or other chemical properties, except for KED and base saturation. At depths of 40–80 cm, the management effect is negligible, indicating that topsoil interventions have only limited impact on deeper layers. The relative stability of nutrient status in Pontianak's peatlands, despite prolonged intensive inputs, demonstrates the resilience of peat soil fertility. Changes in land suitability characteristics are primarily driven by management practices rather than cultivation duration.
PELATIHAN PEMBUATAN PUPUK HAYATI PADA KELOMPOK TANI JAGUNG DI DESA BINJAI KECAMATAN TAYAN HULU KABUPATEN SANGGAU Hayati, Rita; Gafur, Sutarman; Junaidi, Junaidi; Alhaddad, Abdulmujib
Jurnal Dinamika Pengabdian Vol. 11 No. 3 (2026): JURNAL DINAMIKA PENGABDIAN VOL. 11 NO. 3 APRIL 2026
Publisher : Departemen Budidaya Pertanian Fakultas Pertanian UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jdp.v11i3.48139

Abstract

Jagung merupakan komoditi andalan untuk Desa Binjai yang merupakan salah satu desa di Kecamatan Tayan Hulu Kabupaten Sanggau yang berjarak 166 km dari Kota Pontianak. Jagung dikembangkan pada tanah Inceptisol, karena rendahnya kesuburan tanah maka budidayanya masih secara konvensional dengan ketergantungan pada pupuk anorganik sangat tinggi. Tujuan kegiatan Pengabdian Kepada Masyarakat (PKM) adalah memberikan pelatihan pembuatan pupuk hayati dan pemanfaatannya secara kombinasi dengan pupuk kimia dan biochar kepada petani di Desa Binjai. Metode yang digunakan adalah penyuluhan, pembimbingan, pendampingan, dan evaluasi kegiatan. Hasil kegiatan memperlihatkan peningkatan pengetahuan dan keterampilan petani dalam pembuatan pupuk hayati dan biochar sebanyak 80%. Selain itu terjadi peningkatan pengetahuan dan keterampilan petani sebesar 80% dalam pengaplikasian pupuk hayati pada tanaman jagung 80%. Kata kunci: Inceptisol, pupuk hayati, jagung, desa Binjai, pupuk anorganik.   ABSTRACT Binjai Village is one of the villages in Tayan Hulu Subdistrict, Sanggau Regency. The distance from Pontianak to Binjai Village is 166 km. Most of the residents work as farmers. The crops cultivated are cassava, cayenne pepper, bananas, rubber, and palm oil. Corn is also cultivated. Corn is a staple commodity for Binjai Village. Corn is grown on Inceptisol soil. Due to the low fertility of the soil, cultivation is still conventional, with a high dependence on inorganic fertilizers. The objective of the PKM activity is to provide training on the production of biofertilizers and their use in combination with chemical fertilizers and biochar. The methods used were: counseling, guidance, assistance, and evaluation of activities. The results of the activities were: an 80% increase in farmers' knowledge and skills in making biofertilizers and biochar, and an 80% increase in farmers' knowledge and skills in applying biofertilizers to corn crops. Keywords: Inceptisol, biofertilizer, corn, Binjai village, inorganic fertilizer.
Co-Authors Junaidi Junaidi Rita Hayati Sutarman Gafur