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Intercropping is one way of increasing productivity per unit area per unit time. This study aimed to (1) evaluate the effects of timing of planting on the growth and yield of upland rice and peanut under the intercropping scheme, (2) determine the appropriate timing of planting of upland rice and peanut that would give optimum yield, and (3) assess the profitability of upland rice and peanut production under the intercropping scheme as influenced by the timing of planting. The experimental area was laid out in a randomized complete block design with three replications. The treatments were as follows: T1—upland rice + peanut planted simultaneously, T2—upland rice planted 1 week ahead than peanut, T3—upland rice planted 2 weeks ahead than peanut, T4—peanut planted 1 week ahead than upland rice, and T5—peanut planted 2 weeks ahead than upland rice. Results showed that upland rice planted 2 weeks ahead of peanut (T3) and those planted simultaneously with peanut (T1) headed and matured earlier than the other treatments. Likewise, T3 and T5 obtained the heaviest panicles/0.50 linear meter. Similarly, peanut var. BPI-Pn9 planted 2 weeks ahead of upland rice (T5) flowered and matured earlier than the other treatments. The highest land equivalent ratio and area time equivalent ratio values of 1.50 and 2.02, respectively, were obtained from T5 (peanut planted 2 weeks ahead of upland rice). The highest combined yield of upland rice (2.42 t/ha) and peanut (1.47 t/ha) was also obtained from T5, which resulted in the highest gross margin of PhP86,867.02/ha.
Cite this article as: Cagasan, U., & Amarado, J. (2023). Influence of Intercropping on the Growth and Yield Performance of Upland Rice (Oryza sativa L. var. zambales) and Peanut (Arachis hypogaea L.). Research in Agricultural Sciences, 54(1), 2-8.