Growth and Yield of Rice under Different Irrigation Intensity and Purple Nutsedge (Cyperus rotundus L.) Density

Background: The water requirements for Oryza sativa L. need to be known to support its growth. Furthermore, water conditions in rice plantations can affect weed growth. Cyperus rotundus L. is an important weed of rice, so it needs to be controlled so as not to disrupt rice growth. Methods: This research aims to obtain irrigation intensity that is effective in suppressing the growth of Cyperus rotundus L. and identify its density of it, which can reduce rice yields. The research was conducted in a greenhouse at the field laboratory of the faculty of agriculture, Sebelas Maret University, from December 2022 to March 2023 using a factorial randomized block design using two factors. The first factor is irrigation intensity with three levels (daily irrigation, irrigation every 4 days and irrigation every 8 days), while the second factor is the weed density of Cyperus rotundus L. with four levels (without weeds, 1 weed, 2 weeds and 3 weeds), each repeated three times. The data obtained were analyzed using a variance test and if significant differences were found, then a 5% duncan multiple range test was carried out. Result: The results showed that daily irrigation with a density of 2 weeds increased the height of rice plants and the number of rice panicles. However, a density of 1 or 2 weeds reduced the number of tillers by 18.2% in rice plants. A density of 3 sedge weeds resulted in a more significant reduction of tillers by 45.96% and a decrease in the dry grain weight per clump by 34.97%.

• Publication year

  2025

• Venue

  Agricultural Science Digest - A Research Journal

• Publication date

  2025-10-06

• Fields of study

  Not labeled

• Identifiers
  DOI 10.18805/ag.df-738
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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