Original Article
Abolfazl Hedayatipour; mostafa Godarzi; mahmod Safari; mona Tahmasebi; seyed Mohsen Seyedi
Abstract
To investigate the effect of bed width on yield and yield components of beans, an experiment was conducted using a split-plot arrangement in a randomized complete block design with three replications at the Khomein Bean Research Station during 2022–2023. The main plot treatments were: planting ...
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To investigate the effect of bed width on yield and yield components of beans, an experiment was conducted using a split-plot arrangement in a randomized complete block design with three replications at the Khomein Bean Research Station during 2022–2023. The main plot treatments were: planting on beds with a width of 80 cm (P1), planting on beds with a width of 30 cm (P2), and flat planting (P3). The subplots consisted of three bean varieties: Line 492 (Type I, upright growth habit, V1), Kusha variety (Type II, semi-creeping, V2), and Saleh variety (Type III, creeping, V3). Measured variables included machine field working capacity (ha/h), biological and dry grain yield (kg/ha), 100-seed weight (g), and harvest index. The results showed that the highest grain yields were obtained with bed widths of 30 cm and 80 cm, yielding 2349 kg/ha and 2261 kg/ha, respectively. The lowest yield was recorded in the flat planting method (conventional treatment), at 1489 kg/ha, which was significantly lower (at the 5% level) than the other treatments. For both creeping and semi-creeping bean varieties, the highest yields were achieved using bed cultivation. Economic analysis revealed that cultivation on 30 cm and 80 cm wide beds was the most cost-effective method. The length of irrigation tape required for flat planting was 2000 m/ha, compared to 13,500 m/ha for bed planting methods. Given the advantages of bed cultivation, flat planting (conventional method) is not recommended for bean production.
Original Article
Mohammad Ali Rostami; Amir Eslami; Shokoofeh Sarikhani Khorrami
Abstract
This study investigated the effects of two irrigation methods (drip tape and furrow irrigation) and three wheat planting patterns (2, 3, and 4 rows on raised beds) on wheat yield and agronomic indicators. The experiment was conducted as a split-plot design within randomized complete blocks with six treatments ...
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This study investigated the effects of two irrigation methods (drip tape and furrow irrigation) and three wheat planting patterns (2, 3, and 4 rows on raised beds) on wheat yield and agronomic indicators. The experiment was conducted as a split-plot design within randomized complete blocks with six treatments and three replications over two growing seasons. Wheat was cultivated on wide raised beds measuring 60 cm in width, 15-20 cm in height, with 75 cm center-to-center spacing (60 cm bed width and 15 cm furrow width). Measured parameters included grain yield, germination percentage, emergence rate, tillering capacity, weed density, and water productivity. Mean comparisons revealed that drip tape irrigation increased yield by 20.6% (7,811 vs. 6,474 kg/ha) and improved water productivity by 24.3% (1.28 vs. 1.03 kg/m³) compared to furrow irrigation, while showing 47.3% lower weed density. Among planting patterns, the 3-row arrangement demonstrated optimal performance with 7,668 kg/ha yield and 1.24 kg/m³ water productivity. The superior treatment combination - drip irrigation with 3-row planting on wide raised beds - achieved maximum yield (8,311 kg/ha) and water productivity (1.36 kg/m³). These findings demonstrate that drip tape irrigation combined with 3-row planting on wide raised beds simultaneously enhances yield, water use efficiency, growth parameters, and weed control. This integrated approach is recommended as an effective strategy for wheat cultivation in water-limited environments, offering both agronomic and resource conservation benefits. The results highlight the importance of optimized irrigation and planting configurations for sustainable wheat production systems.
Popular Science Article
Majid Roozbeh
Abstract
The development of mechanical cotton harvesting can cause significant changes in the conventional cotton production process from the point of planting pattern. A study was conducted to determine the effects of narrow row and conventional row cotton production systems on cotton picker and stripper ...
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The development of mechanical cotton harvesting can cause significant changes in the conventional cotton production process from the point of planting pattern. A study was conducted to determine the effects of narrow row and conventional row cotton production systems on cotton picker and stripper performance under farmer's field conditions in 2022. The results showed that cotton stripper application in narrow row system reduced effective field capacity by 26.2% as compared to cotton picker. The wide row cotton production system had a lower percentage of ground losses and total losses (6.7 and 11.1% respectively) as compared to narrow row systems, although difference in seed cotton loss was not significant among cotton production systems. The findings showed that application of narrow row system increased the seed cotton yield by 10.5 % compared to the wide row system. The results revealed that different cotton harvesting systems had no effect on characteristics of fiber quality. However, results indicate that, application of narrow row cotton production system with stripper harvester is more effect to improve seed cotton yield compared to the wide row cotton production system in cotton-cultivated regions of the south part of Fars province and other areas with the similar ecological conditions.
Original Article
jabraeil taghinazhad; vahia mahdavi
Abstract
In this study, it was done to investigate the efficiency to improve the quality of spraying on the control of cotton pests in Moghan. This project was conducted in a completely random block experimental design with four replications. The treatments tested were spraying with UAV sprayer, boom and turboliner ...
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In this study, it was done to investigate the efficiency to improve the quality of spraying on the control of cotton pests in Moghan. This project was conducted in a completely random block experimental design with four replications. The treatments tested were spraying with UAV sprayer, boom and turboliner sprayer. The measured parameters included the effective capacity, amount of spraying of poison solution per hectare, numerical and volumetric median diameter of poison, spraying quality, drift, and effectiveness of sprayers. The results showed that the lowest spraying quality index for the turboliner sprayer was 1.88, and for the boom sprayer and the drone sprayer were 2.26 and 2.60, respectively. The boom sprayer was the best method for controlling the thrips pests in the early stages of cotton growth due to its easy access, suitability of field and plant conditions, and favorable relative spraying quality. However, in the final stages of plant growth, depending on the availability of sprayers and field conditions (irrigation and field area), and due to the high height of the crop and traffic problems in the field, the use of the drone sprayer and the turbo liner was more suitable. The highest field capacity with 4.75 ha.hr-1 related to the drone and the lowest drift with %10.01 were related to boom. The results of the economic analysis showed that the marginal efficiency rate of replacing the use of drone with other treatments in inappropriate field conditions and plant height is more than 76.98%. Therefore, drone sprayer is recommended.
Original Article
Mohammad Reza Bakhtiari; Ghasem Assadian; Ali Ghasemi; Hassan Chehelamiran; Ali Mohammad Jafari; Amir Mansourialam; Arzhang Javadi; Mohammad Ali Rostami; Omid Ghahraei
Abstract
Garlic is one of the country's important crops, accounting for about four thousand hectares annually, but due to the lack of suitable planting machines for small farms, planting is done manually, which is very expensive. Therefore, in a study, a prototype of a two-row garlic planting machine with a cup ...
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Garlic is one of the country's important crops, accounting for about four thousand hectares annually, but due to the lack of suitable planting machines for small farms, planting is done manually, which is very expensive. Therefore, in a study, a prototype of a two-row garlic planting machine with a cup seed metering system was fabricate for planting garlic seeds in small fields, that can be connected to a tiller or small garden tractors. For the field evaluation of this machine, two factors, forward speed and garlic planting depth, were investigated using a factorial experiment in a randomized complete block design (RCBD) with three replications on the factors of machine accuracy and garlic crop yield. The results showed that the interaction effect of forward speed and planting depth on the factors of miss index, multiple index, quality of feed index and yield was significant at the 1% statistical level and on the factors of average distance between garlic cloves and density at the 5% statistical level. The most suitable forward speed was one kilometer per hour with a planting depth between 5 and 8 centimeters, or two kilometers per hour with a planting depth of maximum 5 centimeters. Based on the research results, the average values of planting distance on the row, miss index, multiple index, quality of feed index, planting density and garlic yield at a speed of one kilometer per hour were 15.6 cm, 27.8%, 7.4%, 64.8%, 21.1 cloves per square meter and 15904.2 kg per hectare, respectively.
