Sadegh Afzalinia; Seyed Ebrahim Dehghanian; Khadijeh Alijani; dadgar mohammadi; Seyed Mashaallh Hosseini; Afshar Estakhr; Seiid Mansur Alavimanesh; Mashaallah Zare
Abstract
In this research, effect of tillage and planting methods (planting on permanent raised beds, no-till, and conventional tillage) on soil properties such as bulk density, moisture content, and organic carbon and water consumption, water productivity, and crop yield was evaluated in the form of randomized ...
Read More
In this research, effect of tillage and planting methods (planting on permanent raised beds, no-till, and conventional tillage) on soil properties such as bulk density, moisture content, and organic carbon and water consumption, water productivity, and crop yield was evaluated in the form of randomized complete blocks experimental design with three treatments and six replicates in corn-wheat rotation. Results showed that the raised bed planting had the maximum forage corn (95.33 ton/ha) and wheat yield (7.01 ton/ha) and no-till had the minimum silage corn (87.06 ton/ha) and wheat yield (5.23 ton/ha) which had no significant difference with the conventional tillage. Forage corn consumed the maximum water (9531 m3/ha) in the conventional tillage and the minimum water (8155 m3/ha) in no-till; while, there was no significant difference between treatments from the water productivity point of view. Wheat consumed the maximum water (7177 m3/ha) in raised bed planting, but there was no significant difference between treatments from the stand point of water productivity. Results also showed that conservation tillage methods increased soil moisture content in forage corn planting (around 11%), but had no significant effect on the soil moisture content in wheat planting.
Conservation agriculture
mohamad ghoamiparshokuhi; Iraj Ranjbar; Davood Mohammad Zamani
Abstract
This research was carried out in Hakim Farabi Agro-Industry Company located in 35 km of Ahvaz-Abadan road in the years 2016 to 2018 by the method of random complete blocks design and was performed in three replications. The comparative treatments included 1- using the subsoil twice D8 bulldozer (conventional ...
Read More
This research was carried out in Hakim Farabi Agro-Industry Company located in 35 km of Ahvaz-Abadan road in the years 2016 to 2018 by the method of random complete blocks design and was performed in three replications. The comparative treatments included 1- using the subsoil twice D8 bulldozer (conventional operation), 2- Alpego composite tillage, 3- Nardi composite tillage and 4- subsoil using D8 bulldozer + Khorasan forging tractor subsoil. The results of this study showed that there was no significant difference between different treatments in terms of yield components (quantitative and qualitative indices of sugarcane). Also, different treatments had a significant effect on soil physical properties and performance parameters. In stem height, yield, syrup brix and purity, the highest values related to the second treatment, with 236 cm, 102 t ha-1, 19.95% and 93.85%, respectively, and in the weight average of the diameter of the lumps, specific mass apparent, at depths of 30 to 60, soil resistance at depths of 0-30 cm, fuel consumption and operating time, the lowest values, respectively, related to the third treatment with 38.33 mm, the second treatment with 1.15 g (cm3)-1 The second treatment was 104.96 pascal, the second treatment was 48.33 liters per hectare, and the second treatment was 2.21 hours.
hooshang afzali gorouh; Farzad Azadshahraki; ladan shafie
Abstract
Minimum tillage and no tillage methods not only increase soil fertility but also reduce energy consumption and production costs. This study was performed to determine the energy indices in corn production under different tillage systems (conventional tillage, minimum tillage by disk, minimum tillage ...
Read More
Minimum tillage and no tillage methods not only increase soil fertility but also reduce energy consumption and production costs. This study was performed to determine the energy indices in corn production under different tillage systems (conventional tillage, minimum tillage by disk, minimum tillage by chisel packer, and no tillage) in corn farms of Orzuiyeh region, Kerman province in 2017. For this purpose, questionnaires were filled by farmers and the necessary data were collected through interviews with them. In this study, energy efficiency, net energy gain, energy productivity, energy intensity and water use efficiency indices were calculated and analyzed. Results of this study showed that the maximum energy efficiency (1.81 MJ / ha) and maximum net energy gain (51402 MJ / ha) were achieved in minimum tillage by disk treatment. Energy productivity index was equal to 0.155, 0.155, 0.123 and 0.105 kg / ha for conventional tillage, minimum tillage by disk, minimum tillage by chisel packer and no tillage respectively. Maximum energy intensity (9 MJ/kg) was found in conventional tillage and minimum energy intensity (8.1 MJ/kg) was calculated in minimum tillage by disk treatment. Maximum water use efficiency (0.85 kg/m3) was found in the treatment of minimum tillage by disk. The results of this study also indicated that in corn cultivation in Orzuiyeh region, the maximum amount of energy consumptions occur in water supply, fertilizer application, machinery equipment and fuel respectively. Modification of irrigation methods, optimation of fertilizer consumption and using minimum tillage methods may improve energy ratio and increase farmer’s income in corn production in Orzuiyeh region.
Ali Khani
Abstract
Heavy crop residue on the soil surface impedes no-till drill performance and subsequent crop production in conservation tillage systems and therefore limit its adoption by farmers. Therefore, a field study was conducted to determine the effects of various residue management methods on no-till drill performance. ...
Read More
Heavy crop residue on the soil surface impedes no-till drill performance and subsequent crop production in conservation tillage systems and therefore limit its adoption by farmers. Therefore, a field study was conducted to determine the effects of various residue management methods on no-till drill performance. The experimental design was a randomized complete block in five replications. The residue management systems were in four levels of leaving (T1), removing (T2), chopping (T3) and disking (T4). Factor analysis was used to group and identify the most effective indicators of drill performance. The results showed that various residue management methods had a significant effect on planting depth, the speed of emergence, effective field capacity, and depth uniformity. The minimum planting depth and depth uniformity observed for the T1 treatment in the corn crop. The findings revealed that the speed of emergence and depth uniformity was in the order T2>T3>T1>T4and T2>T3>T4>T1 in the corn crop. The results of factor analysis indicated that speed of emergence, planting depth and uniformity of depth were identified as the most effective indicators for evaluating no-till drill performance indexes.
