A Field Technique for Separating Above- and Below-Ground Interactions in Intercropping: an Experiment With Pearl Millet/Groundnut

摘要: A field technique is described in which trenches were dug and vertical polythene partitions installed to eliminate below-ground interactions between component crops intercropping. With pearl millet/groundnut the control intercrop (i.e. not out) gave a yield advantage of 22% compared with sole cropping. treatment out but refilled without was very similar intercrop, indicating that digging procedure per se had little effect on growth. An 19% over cropping, suggesting main determinant an above-ground interaction canopies. However, partitioning decreased millet increased groundnut yield, important determining competitive balance two crops. It concluded promising.