Effect of Ametryn Herbicide and Soil Organic Matter Content on Weed Growth, Herbicide Persistence, and Yield of Sweet Corn ( Zea mays )

Yayan Sumekar (), Dedi Widayat, Uum Umiyati, Ajeng Cahya Aprilia and Abdul Gafur ()
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Yayan Sumekar: Faculty of Agriculture, Padjadjaran University, Jalan Raya Bandung—Sumedang KM 21, Hegarmanah, Sumedang 45363, Jawa Barat, Indonesia
Dedi Widayat: Faculty of Agriculture, Padjadjaran University, Jalan Raya Bandung—Sumedang KM 21, Hegarmanah, Sumedang 45363, Jawa Barat, Indonesia
Uum Umiyati: Faculty of Agriculture, Padjadjaran University, Jalan Raya Bandung—Sumedang KM 21, Hegarmanah, Sumedang 45363, Jawa Barat, Indonesia
Ajeng Cahya Aprilia: Faculty of Agriculture, Padjadjaran University, Jalan Raya Bandung—Sumedang KM 21, Hegarmanah, Sumedang 45363, Jawa Barat, Indonesia
Abdul Gafur: Sinarmas Forestry Corporate Research and Development, Jalan Raya Minas—Perawang KM 26, Perawang 28772, Riau, Indonesia

Sustainability, 2023, vol. 15, issue 23, 1-11

Abstract: This study examines the impact of weeds on sweet corn, where weeds compete for essential elements, such as nutrients, water, sunlight, and space for growth. In general, the use of herbicides is meant to suppress weed growth. Soil organic matter is important for plant growth and affects herbicide persistence. This study aimed to explore the interaction between ametryn herbicide and soil organic matter content and its impacts on weed growth, herbicide persistence, and sweet corn yield. The experiment was initiated in 2022 at the Experimental Station of the Faculty of Agriculture, Padjadjaran University, Indonesia, using a Split-Plot Design in a Randomized Complete Block Design (RCBD), with three replicates. The experiments consisted of three levels of organic matter, i.e., low, medium, and high, and six levels of ametryn herbicide at 0.0 (control), 0.5, 1.0, 1.5, 2.0, and 2.5 kg a.i./ha. The results indicated that the apparent interaction between ametryn herbicide doses of 1.5, 2.0, and 2.5 kg a.i./ha and the three levels of the organic matter content totally suppressed weed growth. However, the effects of the interaction between ametryn herbicide and organic matter content on the herbicide persistence and the sweet corn yield were not obvious. Ametryn yielded excellent positive results on sweet corn yield. Bioassay analysis showed that the lowest persistence of ametryn herbicide was in line with the highest content of organic matter.

Keywords: bioassay; chemical weeding; nutrient competition; straw compost; weed suppression (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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