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All Journal Journal of Degraded and Mining Lands Management Jurnal Pertanian Agros
Mulyana, Ade Nendi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Evaluation of early growth and aluminum tolerance in Leucaena leucocephala (Lam.) de Wit seedlings under acidic conditions as a recommendation for post-coal mining land rehabilitation Salim, Mohammad Agus; Sudrajat, Dede J.; Nugroho, Aditya; Indriani, Fitri; Rustam, Evayusvita; Maharani, Dewi; Rosdayanti, Henti; Wawangningrum, Hary; Efendi, Muhammad; Suhaendah, Endah; Mulyana, Ade Nendi; Wahyudi, Imam; Setyaningsih, Luluk; Budi, Sri Wilarso
Journal of Degraded and Mining Lands Management Vol. 13 No. 2 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.132.9979

Abstract

One of the problems with acidic soil is its high aluminum (Al) content, which can cause toxicity to plants. this study was conducted to evaluate the preliminary growth and tolerance of L. leucocephala seedlings to Al exposure. This study used a completely randomized design (CRD) with one factor, namely Al concentration, consisting of 5 levels (0, 2, 4, 6, and 8 mM). The evaluation of seedling growth and tolerance assessed included: height, root length, dry weight of roots and shoots, tolerance index, SPAD (Soil Plant Analysis Development) chlorophyll, and photosynthesis rate. The results showed that Al exposure reduced all growth parameters (height, root length, dry weight of roots and shoots) of L. leucocephala seedlings. The tolerance index of L. leucocephala seedlings also decreased significantly (up to 43.68%) with increasing Al concentration. Meanwhile, chlorophyll and photosynthesis rate parameters increased with Al exposure of 2-4 mM, but decreased with higher Al exposure (6-8 mM). The threshold value or sensitivity of L. leucocephala seedlings to Al exposure was less than two mM. The L. leucocephala species can also serve as an alternative for land rehabilitation with high Al content as post-coal mining land.
KEBERADAAN DAN SERANGAN WALANG SANGIT (Leptocorisa spp.) SERTA BURUNG BONDOL (Lonchura spp.) PADA TANAMAN PADI Mulyana, Ade Nendi; Russianzi, Wanda
Jurnal Pertanian Agros Vol 28 No 2 (2026): EDISI APRIL
Publisher : Fakultas Pertanian Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v28i2.178

Abstract

Pest infestation in rice plants is one of the factors that can disrupt rice production. This study aims to describe the presence and infestation conditions of Leptocorisa spp. (rice bug) and Lonchura spp. (munia birds) on rice plants from the milk ripening stage to grain maturation. Observations were conducted in a rice field in Bogor City, West Java, using a qualitative descriptive approach through direct observation, farmer interviews, and visual documentation. Field observations showed that Leptocorisa spp. attacks occurred during the milk ripening stage and were reported to be controllable through pesticide application, resulting in a relatively low impact on harvest yield. In contrast, Lonchura spp. attacks were observed starting from the early generative stage and increased during grain maturation. These attacks were difficult to control and often led to crop failure. The use of nets as a mechanical control method for Lonchura spp. has been implemented; however, its effectiveness depends on proper installation techniques. Visual documentation further revealed distinct characteristics of damage caused by the two pests on rice plants.
Co-Authors Aditya Nugroho Dede J. Sudrajat Endah Suhaendah Evayusvita Rustam, Evayusvita Fitri Indriani Henti Rosdayanti, Henti Imam Wahyudi Indrawan, Imam Wahyudi Luluk Setyaningsih Maharani, Dewi Muhammad Efendi, Muhammad Russianzi, Wanda Salim, Mohammad Agus Sri Wilarso Budi Wawangningrum, Hary