Farzad Fardin; Behzad Sani; payam moaveni; Gholam Reza AfsharManesh; hamid mozaffari
Abstract
This experiment was conducted in order to evaluate the effect of water deficit irrigation on the agronomic characteristics of fodder sorghum cultivars in Kerman province. This experiment was carried out as a strip split-plot in a complete randomized block design with four replications in a research farm ...
Read More
This experiment was conducted in order to evaluate the effect of water deficit irrigation on the agronomic characteristics of fodder sorghum cultivars in Kerman province. This experiment was carried out as a strip split-plot in a complete randomized block design with four replications in a research farm of agricultural research center of Jirof and Kahnooj, Kerman province, in 2019 and 2020. Drought stress as a vertical factor in four levels including without stress (irrigation after 80 mm evaporation from evaporation pan) as control, mild stress (irrigation after 110 mm evaporation from the evaporation pan), medium (irrigation after 140 mm evaporation) and sever (irrigation after 180 mm evaporation) and four sorghum cultivars including Spidfeed, Sugar graze, Jumbo and Pegah as a horizontal factor. The highest yield of fresh forage yield under non-stressed conditions (control) was observed in Spidfeed and Pegah (121.60 and 118.79 ton.ha-1, respectively). Also, Spidfeed and Pegah had the highest dry forage yield under non-stressed conditions (control) as 22.50 and 20.69 ton.ha-1, respectively. Also, the highest yield of dry forage in mild drought stress was observed in Pegah and Speedfeed varieties (15.30 and 14.88 ton.ha-1, respectively) and under medium drought stress in Pegah (11.12 ton.ha-1), whereas Spidfeed variety was superior to others for dry forage yield (7.42 ton.ha-1), in severe drought stress. Based on MP and STI indices, Spidfeed and Pegah cultivars with higher average of dry fodder yield were selected as the most suitable genotypes under drought stress conditions in Jiroft region of Kerman province.
Sara Ghanbari; Mohammad Moradi Telavat; Seyyed Ataollah Siadat
Abstract
In order to determinate the optimum combination of barley with fenugreek in intercropping under cow manure levels, an experiment was conducted as split plot based on a randomized complete blocks design with three replications at the research farm of Ramin Agriculture and Natural Resources University ...
Read More
In order to determinate the optimum combination of barley with fenugreek in intercropping under cow manure levels, an experiment was conducted as split plot based on a randomized complete blocks design with three replications at the research farm of Ramin Agriculture and Natural Resources University of Khouzestan during growing season of 2014-15. In this study, four manure levels (0, 12, 24 and 36 t.ha-1) were placed in the main plots, and eight levels of replacing and increasing ratios of intercropped cultures including 75% barley + 25% fenugreek, 50% barley + 50% fenugreek, 25% barley + 75% fenugreek, 100% barley + 16.6% fenugreek, 100% barley + 33.3% fenugreek, 100% barley + 50% fenugreek and pure cultures of both plant were placed in sub-plots. The results showed that the highest barley dry forage yield (2850 kg.h-1) was obtained from treatment of Sole barley by application of 36 ton.ha-1 manure, also the highest fenugreek dry forage yield (1633.33 kg.h-1) was obtained from treatment of Sole fenugreek by application of 24 ton.ha-1 manure. According to the highest System Productivity Index (SPI = 2933.29) from two treatment of 100% barley + 50% fenugreek and 100% barley + 33.3% fenugreek by application 36 ton.ha-1 manure, An increase of culture at 36 ton.ha-1 of manure was the best composition in the present experiment. Also the Land equivalent ratio and aggressivity index was obtained in increasing ratios of intercropped cultures and with application of 36 ton.ha-1 manure more than one. Therefore, in this study, barley and fenugreek were introduced two species compatible combinations of intercropping.
Mehdi Ramezani; Seyed Mohammad Reza Ehteshami; Mohsen Sharifi; Mohammad Reza Chaichi
Abstract
In order to investigate the effect of different levels of biofertilizer inoculation and phosphorus chemical fertilizer on mineral elements absorption in forage corn SC. 540 under humidity regimes, an experiment was conducted as Line source based on a randomized completele block design with three replications ...
Read More
In order to investigate the effect of different levels of biofertilizer inoculation and phosphorus chemical fertilizer on mineral elements absorption in forage corn SC. 540 under humidity regimes, an experiment was conducted as Line source based on a randomized completele block design with three replications during two growing seasons of 2012 and 2013. The implementation of Line source was applied four levels of irrigation (not stress, mild stress, moderate stress, severe stress). Five phosphorus levels included the application of 100 percent triple super phosphate fertilizer and without biofertilizer, 75 percent recommended chemical fertilizer with biofertilizer, 50 percent recommended chemical fertilizer with biofertilizer, 25 percent recommended chemical fertilizer with biofertilizer, biofertilizer and without chemical fertilizer, too. The results of experiment showed significant differences of fertilizer treatment in most of studied traits in the first and second of year. The highest of fresh and dry forage yield obtained to apply treatment of 100 percent triple super phosphate fertilizer and without biofertilizer that this value wasn’t statistically significant difference with 75 percent recommended chemical fertilizer and biofertilizer. The mineral elements absorption decreased with increasing of stress condition. The highest amount of absorption of phosphors recorded in 75 percent recommended chemical fertilizer with biofertilizer, although in stress condition, the highest amount of absorption of phosphor recorded in 50 percent recommended chemical fertilizer with biofertilizer.
Razie Nabavi Moghadam; Mohammad Hossein Saberi; Mohamad Hasan Sayyari
Abstract
To investigate the effect of different amounts of Fe and Mn on qualitative and quantitative traits of forage maize (Zea mays L.) hybrid single cross 704, an experiment was conducted as a factorial in a randomized complete block design with 16 treatments and three replications at Qaneat city (Southern ...
Read More
To investigate the effect of different amounts of Fe and Mn on qualitative and quantitative traits of forage maize (Zea mays L.) hybrid single cross 704, an experiment was conducted as a factorial in a randomized complete block design with 16 treatments and three replications at Qaneat city (Southern Khorasan Province) in 2010. Treatments consisted of 4 levels of FeSO4 (no fertilizer as control and 30, 60 and 90 kg/ha) and 4 levels of MnSO4 (no fertilizer as control and 10, 20 and 40 kg/ha).With increase of Fe and Mn fertilizers, a significant increase was occurred in plant height, leaf number, stem diameter, dry weight (stem, leaf, maize) and dry forage yield. Increased rates to optimum level (Fe-60 and Mn-20 kg/ha fertilizers according to the soil test), increased the yield, but more fertilizer reduced the quality. Therefore for forage with good quality and quantity, 60 and 20 kg/ha of Fe and Mn fertilizers, respectively is recommended for this area.