Evaluation of Conservation Tillage Systems and Weed Management on Yield and some Characteristic of Cucurbita pepo L.

Abstract

This study was conducted to evaluate conservation tillage systems and weed management methods in the form of split plot design based on randomized complete blocks with 3 replications in Khoy and Maku counties in 2019-2020 crop year. The main plot included conservation tillage at Four levels including (conventional tillage, zero tillage, chisel, disc) and the sub-plot of weed management at Four levels included (herbicide use, weed-free, uncontrolled and control). The highest number of seeds (211), biological yield (7.62 t.ha-1), oil yield (83.33 kg.ha-1) and protein yield (34.6kg.ha-1) were observed in Khoy region and the lowest number of seeds (114), biological yield (1.01 t.ha-1), oil yield (19.7 kg.ha-1) and protein yield (1.66 kg.ha-1) under the influence of disc and weed-free treatment in Maku region Was. Also, the highest grain yield (828 kg.ha-1) was observed under the influence of chisel and weed-free treatments and the lowest (756 kg.ha-1) was observed in disc treatment without weed control. In general, the comparison of the average experimental treatments indicates the superiority of tillage treatment with chisel and weed management (weed-free) in Khoy region and it seems that in crop systems to maintain crop yield potential and improve integrated weed management Weeding, minimal tillage operations and weed control are recommended.

Keywords

• biological yield
• conservation tillage
• grain yield
• oil yield
• protein yield