Land Equivalent Ratio of Indigofera zollingeriana - Brachiaria humidicola Intercropping Based on Stem-Leaf Production

Abstrak

 ABSTRACT 

The study aimed to decide the advantages of intercropping Indigofera zollingeriana (Iz) and Brachiaria humidicola (Bh) under coconut plantation based on dry matter leaf and stem yield. The completely randomized design was applied using four treatments and five replications. Treatment mix of establishing space, S1: Iz 1 m x 1 m and Bh 0.5 m 0.25 m; S2= Iz 1 m 1 m and Bh 0.5 m 0.5 m; S3= Iz 1 m 1.5 m and Bh 0.5 m 0.25 m; S4= Iz 1 m 1.5 m and Bh 0.5 m 0.5 m. Data collections were analyzed by disagreement analysis of variance and honestly significant difference (HSD) test. The variables measured were land equivalent ratio (LER) based on dry matter leaf and stem yield. The results showed that planting space treatments had significant differences on LER based on dry matter leaf and stem potential yield. The HSD evaluation showed that S4 had higher LER based on dry matter leaf and stem yield than I1 and I2, but have no significantly different than I3. It concluded, intercropping of Iz and Bh was very profitable indicated by the LER results with values > 1, where the spacing combination Iz with extension 1.0 m 1.0 m and Bh with extension 0.5 m 0.25 m were the most suitable LER based on dry matter leaf and stem yield. 

Key words: Brachiaria humidicola, Indigofera zollingeriana, land equivalent ratio, planting space