Intercropping of collard green and radish ‘Cometo’: spatial arrangement and growing efficiency

ABSTRACT Intercropping is a method of growing plants that assists in rational use of natural resources. Based on this concept, the aim of this study was to evaluate the response of collard green and radish ‘Cometo’ crops in monoculture and in intercropping under different spatial arrangements through physical production indicators (technical coefficients). The study was conducted in plant beds in a randomized block design (RBD) with 5 treatments and 4 replications. The treatments involved growing the two crops separately and intercropped under different spatial arrangements: (1:2) one row of radish ‘Cometo’ between two rows of collard green; (2:2) two rows of radish ‘Cometo’ between two rows of collard green; and (3:2) three rows of radish ‘Cometo’ between two rows of collard green. The spatial arrangements adopted did not affect the growth and development of radish ‘Cometo’ and of collard green, and all the arrangements used exhibited high land use efficiency, especially the 3:2 arrangement, which provided the greatest land use efficiency, at 1.69.

摘要 间作是一种可助力自然资源合理利用的植物栽培模式。基于该理念，本研究旨在通过实物生产指标（技术系数），评估菜用羽衣甘蓝（collard green）与‘Cometo’萝卜分别在单作及不同空间配置间作模式下的生长响应。本试验采用随机区组设计（randomized block design，RBD），于种植床中开展，共设置5个处理、4次重复。处理涵盖两种作物的单作模式，以及三种不同空间配置的间作模式：(1:2) 两行菜用羽衣甘蓝间种植一行‘Cometo’萝卜；(2:2) 两行菜用羽衣甘蓝间种植两行‘Cometo’萝卜；(3:2) 两行菜用羽衣甘蓝间种植三行‘Cometo’萝卜。试验结果显示，所采用的空间配置未对‘Cometo’萝卜与菜用羽衣甘蓝的生长发育造成显著影响，且所有配置均展现出较高的土地利用效率，其中3:2配置的土地利用效率最优，达1.69。