To study the effects of phosphorous of different sources and its solubilizing bacteria on the corn growth an experiment was conducted at Miyandoab Agricultural and Natural Resources Research Station in 2005 in Iran. The arrangement of experiment was factorial based on R More
To study the effects of phosphorous of different sources and its solubilizing bacteria on the corn growth an experiment was conducted at Miyandoab Agricultural and Natural Resources Research Station in 2005 in Iran. The arrangement of experiment was factorial based on RCB design with three replications. Treatments consisted of four levels of phosphate solubilizing bacteria: control, thiobacillus bacteria, phosphate solubilizing bacteria and Thiobacillus bacteria and phosphate solubilizing bacteria and three levels of fertilizer: without fertilizer, rock phosphate and triple super phosphate. In this study 0.5 m2 of each plot was sampled every 15 days intervals and were studied the dry matter per unit area (TDM), leaf area index (LAI), crop growth rate (CGR) and relative growth rate (RGR) were analyzed. The results showed that the application of thiobacillus bacteria + phosphate solubilizing bacteria + triple super phosphate increased total dry matter (TDM) and crop growth rate (CGR), while relative growth rate (RGR), decreased. LAI increased slowly during early growing stage but increased rapidly when growth proceeded. The highest LAI (4.3), TDM (3451 gr/m2) and CGR (5.41 gr/m2) were obtained from the application of thiobacillus + phosphate solubilizing bacteria triple super phosphate. Similar results were obtained by the application of thiobacillus + phosphate solubilizing bacteria + rock phosphate. It seems that application of thiobacillus + phosphate solubilizing bacteria is useful for availability of phosphorous to plant. Also, application of rock phosphate, due to low cost, availability of phosphorous to plant and its decreased effect on environment pollution can be used instead of other sources of phosphate fertilizers such as triple super phosphate.
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In order to study the effect of phosphate solubilizing bacteria in combination with phosphorus fertilizer on yield of corn hybrids, the experiment was carried out in the north of Khuzestan province during the summer of 2013-2014 by a split plot design in the form of ran More
In order to study the effect of phosphate solubilizing bacteria in combination with phosphorus fertilizer on yield of corn hybrids, the experiment was carried out in the north of Khuzestan province during the summer of 2013-2014 by a split plot design in the form of randomized complete block with four replications. Combining biological and chemical fertilizers as main factors at four levels (100% chemical fertilizer, 75%, 50% and 25% chemical fertilizer combined with 100% bio-fertilizer) were used in the main plots and corn hybrids pellets with three levels (S.C 704, S.C Mobin, S.C Karoon) were used in sub plots. In this study the combination of chemical fertilizer with biofertilizer had a significant effect on biological yield at 5% level while the other traits were not significant. Also, the hybrid type had a significant effect on yield components; however, the harvest index was not significant. It seems that combination of chemical fertilizer with biofertilizer was able to increase the performance of single cross hybrids and cross hybrids 704 and Karun while Mobin hybrid showed a lower capability for fertilizer.
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This experiment was conducted to evaluate solublizing bacteria and chemical phosphorus on three varieties of potato.Arandomized complete block design whit a split split plot layout was used in three replication.This investigation was carried out in a farm in Enaj, one o More
This experiment was conducted to evaluate solublizing bacteria and chemical phosphorus on three varieties of potato.Arandomized complete block design whit a split split plot layout was used in three replication.This investigation was carried out in a farm in Enaj, one of the environs of Arak. The result show that the use of phosphate solubilizing bacteria and its con frontation with other factors, were significantly affected the studied qualities about wet weight a erial part, wet weight of tubers, dry weight of tubers, the phosphorus content of tubers and prominent of baruest. It caused significantly in creasing in yield parameters, especially tubers yield comparing to chemical treatment at 1% level. The result also showed that the interaction effect of phosphate solubizing bacteria and chemical hosphorus, showed significant advantage in qualities of wet weight and dry weight of aerial part, dry weight of tuber, number of main stems per plant, Biomous yield and the phosphorus content per bush at 5%level. There was no significant difference at application treatment of phosphate solublizing bacteria with 75kg of chemical phosphate, in the yield aspect with the application of 15kg chemicalphosphate fertilizer. The results show that the application of chemical phosphorus in the most qualities suchas yield of tuber, the percentage of absorbed phosphorus, phosphate content of bush, dry weight of aerial part and biomas yield. Showed difference at 1% level and lead to the most result.
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