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| Sharifi, Ahmad; Sadeghnezhad, Hamid Reza; Faraji, Abolfazl. |
| Conservation tillage systems have been used during recent years in many areas of Iran. In this study, the effect of conservation tillage on soybean yield, yield components and phenological characteristics was evaluated in Golestan province located at the northern Iran. Four different treatments including conventional tillage (CT), minimum tillage (MT), no- tillage with no-till planter (NT-Planter) and no-tillage with no-till grain drill (NT-Grain Drill) were considered. A randomized complete block design with four replications was designed for the experiment. Soybean yield and yield components and some phenological characteristics were measured. Data were analyzed using SAS software and Duncan’s multiple range tests was used to compare the means. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation tillage; Minimum tillage; No-till; Soybean. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3544 |
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| Sharifi, Ahmad. |
| Soil mechanical resistance induced by compaction of agricultural soils is one of the main concerns as it restricts crop yield. In this study two cone and prismatic tips were compared to measure soil mechanical resistance by a multi-tips horizontal sensor. The horizontal sensor equipped with S-shaped load cells was mounted on the backside of each tip. A factorial experiment was designed with two types of tip and three levels of soil compaction. Experiments conducted in the soil bin laboratory. Comparison results between the two cone and prismatic tips of horizontal sensor showed that soil mechanical resistance measured by the sensor had significant differences with each other and also with vertical cone penetrometer data. Cone tip had greater values... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cone tip; Cone penetrometer; Horizontal sensor; Prismatic tip; Soil mechanical resistance. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3434 |
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