InCreasing phosphores fertilizer use efficiency by using Ps5 , Ps7 , Ps13 bacteria in sugar beet farming
2005
Noshad, H. | Sharif, H. | Malboee, M.N. | Chegini, M. H.
This research experiment was carried out in (Karaj region: Kamalabad, meskuin dsht), Khozestan (Dezful region) and Markazi (Arak) province during 1380 to 1382. The layout of the field experiment was a split plot using randomized block design with four replicates. Three different levels of Super phosphate fertilizer (1- control, 2-50% and 3-100% of required phosphors fertilizer which were provided based on soil analysis) were allocated in main plots. Required phosphor concentration should be 25 mg/kg soil. Four different combination of three variety of bacteria of Ps (1- control, without bacteria 2- combination of Ps13 + Ps5 , 3-conbination of Ps7 + Ps13 and 4- combination of Ps5+Ps7+Ps13 were allocated in subplot. In Karaj and Arack region sugar beet seed cultivated in early spring and in Dezful sugar beet is autumn crop. Results showed that some quality and quantity parameters of sugar beet were influenced with different individual combination of phosphor fertilizer or biological fertilizer. Results also showed that the combination of Ps5+Ps13 and the combination Ps7+Ps13 had clear effect on sugar beet quality and quantity, but in three location the trends were not similar. Therefore, to reach to precise conclusion this experiment should be repeated with including other treatments such as method and time e of soil inoculation.
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