Zoleikha Sharifi; ahmad zare; Elham Elahifard; alireza abdali
Abstract
Objective: In order to evaluate different levels of wheat straw mulch and herbicide on quantitative, qualitative yield and weeds control of fennel (Foeniculum vulgare MIL.) an experiment was conducted arranged as split-plot based on a randomized complete block design (RCBD) with 3 replications at Agricultural ...
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Objective: In order to evaluate different levels of wheat straw mulch and herbicide on quantitative, qualitative yield and weeds control of fennel (Foeniculum vulgare MIL.) an experiment was conducted arranged as split-plot based on a randomized complete block design (RCBD) with 3 replications at Agricultural Sciences and Natural Resources University of Khuzestan during 2019-2020 growing season.
Methods: Treatments included different concentrations of linuron herbicide (0, 1.5, 3, 4.5 L/ha) as the main plot and different levels of wheat straw mulch (0, 3, 6, 9 and 12 tons /ha) as the subplot.
Results: The results revealed that the lowest dry weight of broadleaf and grass weeds (73 and 15 g/ m2) of 4.5 L/ha herbicide and 9 and 12 tons’/ha mulch was obtained. The highest grain yield was observed (80 g/m2) in 3L/ha of herbicide application and wheat straw mulch 9 ton/ha, and the lowest (18 g/m2) in treatment non-application of mulch and herbicide. The highest essential oil yield of fennel (2.82 g/m2) was obtained in treatment herbicide application (3 L/ha) and straw mulch (9 ton/ha), while in treatment non-application of mulch and herbicide was 0.48 g/m2.
Conclusion: Therefore, in integrated weed management, the use of wheat straw mulch could be considered for reducing weeds competition and achieving sustainable agriculture in medicinal plants.
Sahereh Hashemian; Alireza Abdali Mashhadi; Amin Lotfi jalal-abadi; Ahmad Kochekzadeh
Abstract
Thanks to its palatability and high digestibility, chicory plays an effective role in increasing domestic animals’ products. In order to study the effect of sowing data and nitrogen fertilizer levels on some characteristics of chichory (Cichorium intybus L.), an experiment has been conducted in ...
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Thanks to its palatability and high digestibility, chicory plays an effective role in increasing domestic animals’ products. In order to study the effect of sowing data and nitrogen fertilizer levels on some characteristics of chichory (Cichorium intybus L.), an experiment has been conducted in a split plot design, using randomized complete blocks design with three replications at the Agricultural Sciences and Natural Resources University of Khuzestan in 2016-2017. The factors include four sowing data (22 October, 5 November, 21 November, and 5 December) as the main plots and four levels of nitrogen (zero (non-application), 75, 150, and 225 kg / ha) as subplots. Results show that the sowing dates have only affected chlorophyll meter index, dry matter digestibility, and digestible energy, whereas nitrogen has had a significant effect on all studied traits. Increasing the application of nitrogen to 225 kg / ha increases plant height, chlorophyll meter index, leaf area, and branch number, not to mention both fresh and dry weights of the plant. The treatment of 225 kg / ha nitrogen raises the fresh weight of shoots and the percentage of forage protein by 66.35% and 6.44%, respectively, compared to non-application. But in these two traits, no significant difference has been observed among nitrogen application levels in different planting dates. In this study, late planting date led to better conditions for most physiological, morphological yield, and quality characteristics. Accordingly, it is turned out that October 22 till November 5 sowing date with 150 kg ha-1 fertilizer has been the best treatment for chicory cultivation in Ahvaz.
Ali Ehsani pour; Hamid Abbasdokht; Manoochehr Gholipoor; Alireza Abdali Mashhadi
Abstract
In order to evaluate the water productivity, stem height and diameter, root dry weight, brix percentage of sugarcane, an experiment was conducted in a randomized complete block design with 14 treatments and four replications during 2016-17 at two locations in Ahwaz. The treatments were: sole sugarcane, ...
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In order to evaluate the water productivity, stem height and diameter, root dry weight, brix percentage of sugarcane, an experiment was conducted in a randomized complete block design with 14 treatments and four replications during 2016-17 at two locations in Ahwaz. The treatments were: sole sugarcane, sole soybean, sole cowpea, sole soybean+ rhizobium, sole cowpea+rhizobium, sole sugarcane+mycorrhizal, intercropping sugarcane with cowpea, intercropping sugarcane with soybean, intercropping sugarcane with cowpea+rhizobium, intercropping sugarcane with soybean + rhizobium, intercropping sugarcane+mycorrhizal and cowpea, intercropping sugarcane+mycorrhizal and soybean, intercropping sugarcane+mycorrhizal and soybean+rhizobium and intercropping sugarcane + mycorrhizal and cowpea +rhizobium. The results showed that the highest water productivity, the highest sugarcane stem height, the largest diameter in the middle of the stem and at the bottom of the stem, the highest dry weight roots and the highest brix percentage of sugarcane stem extract were related to intercropped sugarcane + mycorrhizal and cowpea+ rhizobium treatment. which was 31.61, 16.14, 32.42, 28.35, 8.89, and 8.31% higher than sole sugarcane. Mycorrhizal symbiosis was positive in sugarcane, and when mycorrhizal fungi and cowpea were present simultaneously in a treatment, their synergistic effect on the evaluated traits were positive.