Abdolhamid Mohebi
Abstract
Increasing the efficiency of water use is one of the main topics of sustainable agriculture in arid and semi-arid. The use of some materials such as superabsorbent polymers increase water storage in the soil and thus reduces the water use. Increase water storage in the soil to reduce the effects of drought ...
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Increasing the efficiency of water use is one of the main topics of sustainable agriculture in arid and semi-arid. The use of some materials such as superabsorbent polymers increase water storage in the soil and thus reduces the water use. Increase water storage in the soil to reduce the effects of drought and saline soil. In order to evaluate the effect of super absorbent polymer on survival and growth characteristics of palm, an experiment was carried out in split plot based on Randomized Completely Block Design (RCBD) with three replications at date palm and tropical fruit research center in Ahwaz, during 2011-2012. Experiment comprised a following treatment combination irrigation based on 60, 80 and 100 percent class A pan in main plots, superabsorbent in four rates (0, 40, 80 and 120 g for each offshoot) in subplot. The results showed that water stress and superabsorbent did not significant effect on the surviving. The water use 100 percent with 40 grams and 80 percent of water use with 120 grams of superabsorbent produced the highest and lowest number of leaves prospectively. The lowest number of leaves on the provision of treatment was. The most and lowest trunk perimeter produced in the treatment of water use 100 percent without superabsorbent and 80 percent of water use with 120 grams of superabsorbent, respectively. The water use 100 percent with 120 grams and 60 percent of water use without superabsorbent caused the maximum and minimum plant height, respectively.
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.