The impact of conservation of the tillage and the amount of remaining tasks on aggregate stability of tomato fields in North of Ahvaz City

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Date: July 23, 2014
Publisher: American-Eurasian Network for Scientific Information
Document Type: Report
Length: 1,936 words
Lexile Measure: 1540L

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Abstract :

In order to evaluate the impact of conservation of the tillage and extent of remaining tasks on characteristics of the soil, an experiment was conducted from the type of a split plot in a complete block design of randomized with 3 replications. Treatments included tillage main plots at rates of 1--conventional tillage 2--of the tillage bar 3--reduced tillage 4--no of the tillage, and remaining amount tasks as a subplot in four levels: no remaining tasks, 30 percent, 60 percent and 90 percent, was covered by remaining tasks. Of the tillage treatments included 1--conventional tillage (tillage with the plow on the disk of surfaced Moldboard) 2--strip tillage (chisel plow use) 3--min tillage (Soil sports of complex includes a chisel + disk + dram machine equipped with a motion) 4--no tillage. The results showed that the maximum soil bulk density owned for having no tillage and ninety percent of the remaining tasks and the lowest soil bulk density' were owned conventional tillage and no remaining tasks. The maximum average weighted- the diameter of soil of the tillage is for having no tillage and ninety percent of the remaining tasks and the lowest weighted average--the diameter of the Aggregate is from conventional tillage and no remaining tasks. Key words: conservation tillage remains, aggregate stability. Tomato

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Gale Document Number: GALE|A392176542