Intercropping maize with plantain can result in a delay of approximately two months in plantain harvest, even though maize is typically harvested earlier. This delay is largely due to several interrelated factors.

Firstly, during its growth, maize casts substantial shade over the plantain. This reduced light availability can slow the plantain’s photosynthesis and growth rate, leading to a delayed maturation process. Although maize is harvested first, the shading effects during its growth period can have lasting impacts on the plantain.

Secondly, maize’s high nutrient demand can deplete soil fertility, particularly nitrogen, which is also essential for plantain. Even after maize is harvested, the residual nutrient deficiency can hinder the growth of plantain, contributing to a postponed harvest.

Additionally, the competition for water and nutrients between the maize and plantain roots can stress the plantain, further delaying its development. This competition persists throughout the maize growth cycle and can continue to affect the plantain even after maize has been removed.

Effective management practices, such as ensuring adequate soil nutrient replenishment and optimizing planting strategies, are crucial in mitigating these delays. Without these measures, the adverse effects of intercropping can lead to extension of the plantain’s harvest period.