Initial slow growth of okra makes them highly susceptible to weed interference with high yield losses. Therefore, adequate plant population and timely weeding become necessary for enhanced productivity. Hence, growth and yield of okra as affected by okra population and weeding regime was evaluated. The study was conducted using a split–plot arrangement, fitted into a Randomised Complete Block Design (RCBD) and replicated three times. The main plot consisted of three plant population: 33 333 plants.ha-1, 44,444 plants.ha-1 and 66 667 plants.ha-1. The subplot was four levels of weeding regimes: no weeding; weeding at 3 weeks after planting (WAP); weeding at 3 and 6 WAP; weeding at 3, 6 and 9 WAP. Data collected were subjected to Analysis of Variance, and significant means were separated using least significant difference (LSD at p ≤ 0.05). The results showed that planting okra at 66 66...

Field trials were conducted in the early and late wet cropping seasons of  2017 at Institute of Agricultural Research and Training, Ikenne Station to evaluate the critical period of weed interference in mango ginger. Twelve weed inference periods were evaluated and laid out in a randomized complete block design with three replications. Data were collected on growth parameters, yield, weed cover score and weed dry matter production. Results showed that keeping mango ginger free of weed for at least 8 WAP (weeks after planting) resulted in better crop growth than when left weed infested for 8 WAP and beyond. Mango ginger yield increased significantly with increase in weed free period from 4 weeks to 12 weeks, beyond which there was no significant yield increase. In early and late cropping seasons respectively, there was 18.7 % and 15.6 % yield loss when mango ginger was left weed infested...