Seyed Majid Mousavi; zahra Ahmadabadi
Abstract
To compare potential of two organic materials including sewage sludge (SS) and municipal solid wastecompost (MSW) on micronutrients entry to soil, a research was conducted as split-plot arrangement basedon randomized complete block design with three replications in research field of Sari AgriculturalUniversity. ...
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To compare potential of two organic materials including sewage sludge (SS) and municipal solid wastecompost (MSW) on micronutrients entry to soil, a research was conducted as split-plot arrangement basedon randomized complete block design with three replications in research field of Sari AgriculturalUniversity. Main-plot (fertilizer treatments) included 20 and 40 ton/ha SS, 20 and 40 ton/ha SS + 50%chemical fertilizer (CF), 20 and 40 ton/ha MSW, 20 and 40 ton/ha MSW + 1/2 CF, CF and control. Subplot(years of application) comprised 3 treatments (1, 2 and 3 times of application). Results showed thatboth fertilizer treatments and application period treatments enhanced accumulation of micronutrients insoil significantly so that SS treatments had more influence compared to MSW treatments. The highesttotal and available Fe and Zn, total Mn and Cu were obtained in SS treatments. While, the most availableMn and available Cu was observed in 3 continuous years application of enriched 40 ton MSW and 20 tonMSW with CF, respectively.
Seyed Majid Mousavi; Mohammad Ali Bahmanyar; Zahra Ahmadabadi
Abstract
In order to investigate distribution status of heavy metals in cropping systems of water logging and dry farming, an experiment was conducted as split-plot arrangement based on randomized complete block design with three replications in research field of Sari Agricultural Science and Natural Resources ...
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In order to investigate distribution status of heavy metals in cropping systems of water logging and dry farming, an experiment was conducted as split-plot arrangement based on randomized complete block design with three replications in research field of Sari Agricultural Science and Natural Resources University. A paddy-soil considered for water logging system and the planted field with vegetables considered for dry farming system. Main plot (fertilizer treatments added to soil) included five treatments: 20 and 40 ton.ha-1 compost, 20 and 40 ton.ha-1 sewage sludge and control. Also, sub factor (application years) consisted three treatments comprised: one, two and three years fertilization. The results showed that in water logging system sewage sludge treatments had more influence on heavy metals accumulation in soil while, compost treatments had more influence than sewage sludge treatments in dry farming system. Also, in paddy soil the enhancement percent of available form compared to control treatment was much more than dry farming system.
zahra Ahmadabadi; Mehdi Ghajar Sepanlou; Mohammad Ali Bahmanyar
Volume 13, Issue 2 , March 2012, , Pages 1-12
Abstract
In order to investigate the effect of vermicompost (VC) application on amount of micro elements in soil and plant organs of the medicinal plant of Borage (Borago officinalis), an experiment was carried out in split plot based on complete randomized block design with three replications in the research ...
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In order to investigate the effect of vermicompost (VC) application on amount of micro elements in soil and plant organs of the medicinal plant of Borage (Borago officinalis), an experiment was carried out in split plot based on complete randomized block design with three replications in the research farm of the Sari University of Agricultural Science and Natural Resources. fertilizer treatments include two levels (20 and 40 tons per hectare) of VC, mix VC and fertilizers, fertilizers, (fertilizers include 100 kg/hac potassium sulfate, 100 kg/hc super phosphate and 150 kg/hc urea) and control (without fertilizer and vermicompost) and years of consumption: 2006, 2006 and 2008, 2006 and 2007, 2006, 2007 and 2009, 2006, 2007 and 2008 and 2006, 2007, 2008 and 2009. The results showed that fertilizer treatments had a significant effect on the rate of micro-elements in soil and plant. The years of consumption of fertilizer had a significant effect in all cases except the rate of Cu in the leaves and on the rate of Cu and Mn in petal. The interaction between the years of fertilizer consumption and fertilizer treatments on the rate of micro-elements absorbant in the soil were significantly different, where as significantly affected the Fe in the leaves and petals only. In conclusion, using vermicompost is recommended as an organic fertilizer.