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All Journal Agrikultura Journal of Tropical Soils Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan (Journal of Agricultural Sciences and Veteriner) Jurnal Perlindungan Tanaman Indonesia Kultivasi Jurnal Agrotek Tropika Agroekoteknologi Tropika Lembab Jurnal Kajian Budaya dan Humaniora (JKBH) Agrikultura Masyarakat Tani: Jurnal Pengabdian kepada masyarakat
Uum Umiyati
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Public Health

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The effect of pre- and post-emergence herbicide on weeds and rice yield in the direct seeding system Umiyati, Uum; Kurniadie, Denny; Fauzi, Fauzi
Kultivasi Vol 25, No 2 (2026)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v25i2.69943

Abstract

Indonesian rice production has been unable to fully meet national demand, partly due to weed competition, which can reduce rice yields by up to 80% if left uncontrolled. This study aimed to evaluate the effectiveness of pre-emergence herbicides containing pretilachlor (300 g/L) and post-emergence herbicides containing cyhalofop + ethoxysulfuron (330 g/L) for weed control in direct-seeded rice, and  to determine the optimal dosage. Herbicides active ingredient is pretilachlor are a category of pre-emergence herbicides used in rice cultivation; these herbicides are systemic and are used to control sedges, grasses and broadleaf weeds. The cyhalofop + ethoxysulfuron herbicide is a post-emergence herbicide mixture that can suppress the growth of sedges, broad-leaved weeds and grasses . The study was conducted at PT. Syngenta Indonesia R&D Cikampek Site from August to December 2024, using a Randomized Group Design (RGD) with four replications and six treatments, namely two doses of pre-emergence herbicide (1.0 and 0.5 L/ha), two doses of post emergence herbicide (1.0 and 0.5 L/ha), manual weeding, and control (without treatment). The parameters observed included the weed vegetation analysis, dry weight of weeds, and the components of rice plant growth and yield. The results showed that pre-emergence herbicides with the active ingredient pretilachlor 300 g/L  and post-emergence herbicides with the active ingredient mixtures of cyhalofop + ethoxysulfuron 330 g/L  are effective in controlling various important weeds in the direct seeding system of rice cultivation, such as Cyperus iria, Echinochloa crus-galli, Fimbristylis miliacea, and Leptochloa chinensis, thus helping rice plants grow optimally and increasing yields. Pre-emergence herbicide with the active ingredient pretilachlor 300 g/L  at a dose of 1.0  L/ha gave the best results in suppressing weed growth and increasing rice yields compared to other treatments.
Enhancing tea productivity through integrated fertilization and pruning management: A review Anjarsari, Intan Ratna Dewi; Murgayanti, Murgayanti; Kadapi, Muhamad; Mubarok, Syariful; Umiyati, Uum; Nadya, Amanda; Salsabilah, Salsabilah; Azmi, Alifatul; Ramadhan, Afifah Putri; Husniah, Trifani Hana; Rosita, Rosita; Azkiya, Azkal
Kultivasi Vol 25, No 2 (2026)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v25i2.69997

Abstract

Tea productivity is strongly influenced by agronomic management practices, particularly fertilization and pruning, which play critical roles in regulating plant growth, physiological performance, and shoot regeneration. This review aims to synthesize current scientific evidence on how integrated fertilization and pruning management can sustainably enhance tea productivity. A narrative review approach was employed by collecting and analyzing peer-reviewed articles published between 2015 and 2025 from reputable databases, including Google Scholar and major international journals. The review highlights that balanced fertilization strategies, combining inorganic, organic, and biofertilizers, significantly improve nutrient availability, photosynthetic efficiency, and shoot yield. Pruning, when properly timed and executed, stimulates vegetative growth, maintains canopy structure, and optimizes the distribution of assimilates. Several studies demonstrated that microbial-based biofertilizers enabled a 25% reduction in inorganic fertilizer inputs without compromising tea shoot yield, while optimum pruning cycles of four to five years-maintained productivity and canopy renewal. In addition, the proportion of pecco shoots was reported to decline from approximately 70% in the first year after pruning to 19% in the fourth year, emphasizing the importance of proper pruning management.  Importantly, the integration of fertilization and pruning practices produces synergistic effects, resulting in enhanced shoot density, improved yield stability, and long-term sustainability of the plantation. This review emphasizes that integrated nutrient and canopy management is essential to address productivity decline and environmental challenges in tea plantations, providing a scientific basis for developing climate-resilient and resource-efficient tea cultivation systems.
Co-Authors A. F. Pratama, A. F. Adie, dENY Kurnia Azkiya, Azkal Azmi, Alifatul D. V. Putri, D. V. Deden Deden Deden Deden, Deden Dedi Widayat Denny Kurniadie Fajriani, Syifa Fauzi Fauzi HG, M Yasin Husniah, Trifani Hana Intan Ratna Dewi Anjarsari Kusumiyati Lazuardi, Ahmad Nur Muhamad Kadapi Murgayanti Murgayanti Nadya, Amanda Natasya, Kezia Putri Ramadhan, Afifah Putri Rasyid, Zidan Zulfikar Riswandi, Dani Rosita Rosita Ryan Widianto Salsabilah, Salsabilah Sri Fatimah Syariful Mubarok Yani Maharani, Yani Yayan Sumekar