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T he effect of time on organic and chemical fertilizer values on soil available p
Mohammad Anvara,*, Taher Azizzadeh,b , Manouchehr Farboudi c and Fereshteh Nourollahid
a:Master of Soil Science, University of Mohaghegh Ardabili, Ardabil, Iran; b:Master of Soil Science, Rural Cooperative Organization, Ardabil, Iran; c: Assistant Professor of Soil Science,Islamic Azad University, Miyaneh Branch, Miyaneh, Iran; d: Student of Weed Science, University of Mohaghegh Ardabili, Ardabil, Iran;
*Corresponding author: [email protected]
ABSTRACT
Since phosphorus is one of the main, important and essential elements for all plants and plays different and important roles in plant growth, it is necessary to ensure the availability of phosphorus due to the time of application of fertilizer treatments on the soil until the highest specified period of time To make In order to study the effect of ultra-experimental values in a factorial in a completely randomized design with seven treatments and three replications in 10 soil types under greenhouse conditions, the treatments included: manure At 2 levels: 1 and 2%;
vermicompost fertilizer in 2 levels: 1 and 2%; triple super phosphate fertilizer at 2 levels: 50 and 100 mg / kg and control treatment. The amount of phosphorus absorbed at the beginning and during the implementation of the design was measured at 30, 45, 60, 75 and 90 days in all pots. Finally, statistical analysis was performed using SPSS.18 software and comparison of the meanings with Duncan's test was performed at a probability level of 1%. In this experiment, the interaction of all treatments in all tested soils on the phosphorus absorption was significant at 5 different times, and the highest amount of available phosphorus was added to the treatments at 45 days.
