The role of cover crop (Arachis pintoi Krapov & Gregory) and Leucaena leucocephala (Lam) in soil fertility restoration in Naawan, Philippines: Impacts on nitrogen, phosphorus, potassium, and organic matter
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The role of cover crop (Arachis pintoi Krapov & Gregory) and Leucaena leucocephala (Lam) in soil fertility restoration in Naawan, Philippines: Impacts on nitrogen, phosphorus, potassium, and organic matter
Abstract
Intensive farming decline soil fertility, resulting decrease in plant production. Land rehabilitation using cover crops like Arachis pintoi (Krapov & Gregory) and nitrogen-fixing trees like Leucaena leucocephala (Lam) contribute significantly to soil fertility. This study aims to evaluate their effectiveness in improving nitrogen (N), phosphorus (P), potassium (K), and Organic matter levels in degraded land. Conducted in Naawan, Misamis Oriental, Philippines, soil samples collected were analyzed at the Department of Agriculture’s Regional Soils Laboratory. Results showed a significant improvement in soil nitrogen (N) levels with Arachis pintoi and average phosphorus concentration remained within the normal range. Potassium (K) levels in A. pintoi plots generally increased and organic matter content showed an increase but remained below the optimal 5% threshold recommended for plant growth. L. leucocephala also demonstrated positive impacts on soil chemical properties. Nitrogen levels increased indicating effective nitrogen fixation. Phosphorus also showed an overall increase while Potassium levels exhibited variability, with some plots showing a decrease and increase. Organic matter content also increased though it did not reach the ideal 5% level. Moreover, significant differences were notable in nitrogen levels. A. pintoi resulted in a higher increase compared to L. leucocephala. The significant improvement in N levels suggests that A. pintoi may be more effective in rapid enhancement of soil fertility.
Ackerson JP. 2018. Soil sampling guidelines. Purdue University: Purdue Extension.
Cai J, Shen C, Ye M, Huang S, He J, Cui D. 2024. Influencing factors of porosity and strength of plant-growing concrete. Materials 17(1), 31.
Chozin MA, Nuryana FI, Guntoro D, Sumiahadi A, Badriyah RN, Wibowo A. 2018. Potency of Arachis pintoi Krap. & Greg. as biomulch in the tropical upland agriculture. 196, 012011.
EOS Data Analytics. 2023. Soil fertility: Influencing factors and improvement strategies.
FoodPrint. 2023. How industrial agriculture affects our soil.
Hasan S, Masuda Y, Shimojo M, Natsir A. 2005. Changes in the chemical and physical soil conditions of a marginal land planted with three strata forage system under three years of grazing. J. Fac. Agric. Kyushu Univ. 50(1), 129-133.
Imogie AE, Udosen CV, Ugbah MM, Utulu SN. 2008. Long-term effect of Leucaena leucocephala on soil physico-chemical properties and fresh fruit bunch (FFB) production of oil palm. Afr. J. Plant Sci. 2, 129-132.
Kang BT, Caveness FE, Tian G, Kolawole GO. 1999. Long-term alley cropping with four hedgerow species on an Alfisol in southwestern Nigeria—effect on crop performance, soil chemical properties and nematode population. Nutr. Cycl. Agroecosyst. 54, 145–155.
Lemage B, Tsegaye M. 2020. Evaluation of legume shrubs improved fallow for abandoned agricultural land rehabilitation. Int. J. Agril. Res. Innov. Tech. 10(1), 64-70.
Maswar. 2004. Kacang hias (Arachis pintoi) pada usahatani lahan kering. Balai Penelitian Tanah.
Meshram N, Dalvi V, Shigwan A, Narkhade S. 2016. Microbial community and soil fertility status as influenced by different nitrogen fixing tree species in alfisol. Indian J. of Agroforestry 18(2), 53-58.
Michael PS. 2019. Roles of Leucaena leucocephala (Lam.) on sandy loam soil pH, organic matter, bulk density, water-holding capacity and carbon stock under humid lowland tropical climatic conditions. Bulg. J. Soil Sci. 4.
Mukhopadhyay S, Masto RE, Tripathi RC, Srivastava NK. 2019. Application of soil quality indicators for the phytorestoration of mine spoil dumps. In: Phytomanagement of Polluted Sites. Elsevier, chapter 14, 361-388.
Paulino VT, Bueno MS, Abdalla AL. 2012. Composicao quimica e compostos fenolicos em Arachis pintoi Belmonte. Arch. Zootec. 61, 611-614.
Radrizzani A, Shelton HM, Dalzell SA, Kirchhof G. 2011. Soil organic carbon and total nitrogen under Leucaena leucocephala pastures in Queensland. Crop Pasture Sci. 62(4), 337.
Rusdy M. 2020. Silvopastoral system using Leucaena leucocephala for sustainable animal production in the tropics. Livest. Res. Rural Dev. 32, Article 57.
Sanginga NK, Mulonogy A, Ayanaba. 1988. Response of Leucaena–Rhizobium symbiosis to mineral nutrients in southwestern Nigeria. Plant Soil 112, 121-127.
Warren MW, Zou X. 2002. Soil macrofauna and litter nutrients in three tropical tree plantations on a disturbed site in Puerto Rico. For. Ecol. Manag. 170, 161-171.
Zhang W, Minggang X, Wang B, Wang X. 2009. Soil organic carbon, total nitrogen and grain yields under long-term fertilizations in the upland red soil of Southern China. Nutr. Cycl. Agroecosyst. 84, 59-69.
Roselle Jean G. Licong, Jaime Guihawan, Hilly Ann Roa-Quiaoit, Wella T. Tatil, Peter D. Suson, 2025. The role of cover crop (Arachis pintoi Krapov & Gregory) and Leucaena leucocephala (Lam) in soil fertility restoration in Naawan, Philippines: Impacts on nitrogen, phosphorus, potassium, and organic matter. Int. J. Agron. Agric. Res., 26(3), 1-7.
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