Increasing yield of maize through additive intercropping with several varieties of peanut under two row patterns in dryland of East Lombok, Indonesia
Wayan Wangiyana- Hardianti Sari- I Ketut Ngawit

Faculty of Agriculture, University of Mataram

Abstract

Intercropping maize with legume crops has been reported to be able to increase grain yield of maize. This study aimed to examine the possibilities to increase yield performance of an open-pollinated maize variety by changing the row patterns and additive intercropping with several varieties of peanut in dryland of East Lombok, Indonesia. The experiment was arranged according to split plot design with three blocks and two treatment factors, namely intercropping with several varieties of peanut (K0= maize monocrop- K1= intercropping with Hypoma-1- K2= with Katana-1- K3= with Tasia-1 peanut variety) as the main plots, and row patterns of maize (R1= double row- R2= normal row). Peanut was seeded two weeks before seeding maize, which was planted with a base planting distance of 75x20 cm in normal row, which was modified into double rows of 40x20 cm within the double-row and 110 cm between double rows. The results indicated that additive intercropping maize with peanut and changing the row patterns to double-rows significantly increased grain yield of maize, and there was a significant interaction between the two treatment factors on grain yield of maize, number of seed rows per ear, and weight of 100 grains. Although in general changing from normal to double row pattern increased grain yield, significant increase was found only on the maize plants intercropped with Katana-1 variety of peanut, i.e. from 10.78 ton/ha under normal row to 11.95 ton/ha under double row pattern.

Keywords: Maize- intercropping- row patterns- peanut

Topic: Agricultural Production