Masoumeh Makvandi; AbdolMahdi Bakhshandeh; Ali Moshatati; Mohammad Moradi Telavat; Aydin Khodaei joghan
Abstract
Objective: The effect of the combined use of nitrogen fertilizer with sugarcane residue compost and growth-promoting bacteria on wheat quality traits and yield in the heat stress conditions of the end of the season in Ahvaz was investigated.Methods: An experiment was carried out in the form of two split ...
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Objective: The effect of the combined use of nitrogen fertilizer with sugarcane residue compost and growth-promoting bacteria on wheat quality traits and yield in the heat stress conditions of the end of the season in Ahvaz was investigated.Methods: An experiment was carried out in the form of two split plots in the form of a randomized complete block design with three replications. The experimental factors include three sowing dates: 22 November, 11 December and 31 December in main plots; six combined of nitrogen with compost include control, 100% nitrogen, 75% nitrogen+ 25% compost, 50% nitrogen+ 50% compost, 25% nitrogen+ 75% compost and 100% compost in sub-plots and two levels of use and non-use of bacteria in sub plots.Results: Results showed the effect of Sowing date and the combined use of nitrogen with compost and growth-promoting bacteria were significant on all measured traits. Average comparison showed that combined use of 50% nitrogen + 50% compost with bacterial application increased the characteristics of Grain filling duration and Grain filling rate, Grain protein percentage and wet gluten. Also, the highest seed yield (5864 kg/ha) was obtained on the first planting date and combined consumption of 50% nitrogen + 50% compost and the lowest amount (1115 kg/ha) was obtained on the third planting date and the control treatment.Conclusion: The combined use of nitrogen fertilizer and compost with growth-promoting bacteria could reduce the negative effect of heat stress at the end of the season on the measured plant traits.
Somayyeh Chenani; Mohammad Moradi Telavat; Ali Moshattati
Abstract
To investigate the effect of different levels of vermicompost and boron on safflower grain and oil yield, a factorial experiment is conducted in a randomized complete block design with four replications in the 2016-17 crop year at the research farm of Agricultural Sciences and Natural Resources University ...
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To investigate the effect of different levels of vermicompost and boron on safflower grain and oil yield, a factorial experiment is conducted in a randomized complete block design with four replications in the 2016-17 crop year at the research farm of Agricultural Sciences and Natural Resources University of Khuzestan. Experimental factors include four levels of vermicompost (0, 4, 8, and 12 tons per hectare) and four boron levels (0, 3, 6, and 9 kg per hectare) from the source of boric acid (H3BO3) as soil application. The results show that the effect of vermicompost on most of the measured traits has been significant. Accordingly, biological yield and yield components including number of capitols per square meter, grain per capitol, and 1000-grain weight have increased significantly to the highest level of vermicompost consumption. The effect of boron on grain number per capitol, grain yield, biological yield, stigma yield, harvest index, oil yield, and grain protein percentage is significant. The interaction effect of vermicompost and boron on grain yield, harvest index, oil yield, grain protein percentage, and nitrogen uptake per unit aera is significant. Comparison of means show that the highest grain yield (3184 kg/ha) and the highest oil yield (939 kh/ha) are obtained in the treatment of 12 tons of vermiompost and 3 kg of boron per hectare. In both cases, grain and oil yield per unit area show a 100% increase, compared to the control treatment.