tahere jahantigh; Abdolshakoor Raissi; Hossein Piri
Abstract
Objective: This research was carried out with the aim of investigating the effect of Biofertilizers on some characteristics of guar in the crop year of 2018-2019 in Iranshahr city.Methods: The research was carried out in the form of a randomized complete block design with 8 treatments and 4 replications. ...
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Objective: This research was carried out with the aim of investigating the effect of Biofertilizers on some characteristics of guar in the crop year of 2018-2019 in Iranshahr city.Methods: The research was carried out in the form of a randomized complete block design with 8 treatments and 4 replications. The treatments included 1- Nitroxin (1 liter per hectare), 2- Mycorrhiza (200 kg per hectare), 3- Azotobacter (1 liter of fertilizer per 100 kg of seeds), 4- Rhizobium (1 liter of fertilizer per hectare), 5- Phosphate Barvar 2 (100 grams per hectare), 6- Phosphate Barvar 3 (100 grams per hectare), 7- Biosulfur (6 kg per hectare), and 8- control.Results: The results demonstrated that the effect of fertilizer type on most of the investigated characteristics was significant at the probability level of 1%. The effect of the treatments on the percentage of mucilage was significant at the five percent probability level. The highest biological yield (14.66), number of lateral branches (11.78), harvest index (31.79), plant height (166.53 cm), number of seeds per plant (52.47), seed yield (kg 4438/13 ha), seed nitrogen percentage (5.475), seed protein percentage (32.71), ash percentage (0.173), mucilage percentage (25.860) and swelling factor (1.83 ml) were obtained under the influence of the Nitroxin biofertilizer. The highest number of seeds in pod (5.17) and 1000-seed weight (35.67 g) were obtained under the effect of the biosulfur biofertilizer.Conclusion: Among the investigated treatments, the nitroxin biofertilizer and then the biosulfur exerted a relatively greater effect on most of the quantitative and qualitative characteristics of the guar plant.