This study was conducted to find out the effect of combined application of fluorescent Pseudomonas, spent mushroom compost and the fungicide (Carbendazim 50 % W.P) on Fusarium wilt disease infected tomato plants grown in solarized and non-solarized soil. Results of study revealed that inoculation of fluorescent Pseudomonas and spent mushroom compost have significant effect on the number and weight of tomato fruits per replicate with cost benefit ratio as compared to the control treatment having Fusarium oxysporum f.sp. lycopersici infection. No significance differences was reported among the various treatments imposed, and highest tomato fruit per plant (8.75 fruits/plant) was reported from the treatment containing only sterilized soil after 150 days of plantation this was followed by treatment containing P. fluorescens (7.35 fruits/plant), spent mushroom compost (7.00 fruits/plant), Carbendazim (7.00 fruits/plant) and spent mushroom compost with Pseudomonas fluorescens (6.90 tomato fruit/plant). Similar trends was reported in case of fruit weight and net return and treatment containing only sterilized soil show highest fruit weight (158.60g), maximum net return (113329 Rs/ha) and incremental cost benefit ratio (1:4.50). While minimum net return (0 Rs/ha) was observed in the treatment containing non sterilized soil and F. oxysporum infection.
The study was conducted at the Crops Research Station, College of Agriculture, University of Diyala during the years 2017-2018 to evaluate the effect of planting dates and spraying of humic acid in the growth characteristics and active compounds of Fenugreek (Trigonella foenum –graecum L). The experiment was carried out according to factorial arrangement in a complete randomized blocks design (RCBD) with three replicates and two factors, the first include planting dates (15/10,1/11,15/11) and the second is spraying of the humic acid at a concentration of 2 and 4 ml / L−1. Results revealed that the planting dates had a significant effect in the studied traits, the first date (15/10) recorded the highest rate of plant height (84.89 cm), seeds yield (7.805 g / plant−1 ), seeds yield / hectare (770.2 kg / h−1), number of branches (9.67 branches / Plant−1), number of leaves (146.6 leaves / plant−1), dry plant weight (20.11 g/plant−1), number of pods (47.33 pods / plant−1), number of seeds (14.44 seeds / pod−1), weight of 100 seeds (1.502 g) and the active compounds such as Choline (170.99 mg/ml−1), Trigonelline (305.73 mg/ml−1), Carpine (95.89 mg/ml−1) and Gentianine (191.11 mg/ml−1). The spraying of humic acid at a concentration of 4 ml / L was superior significantly in all traits such as plant height (74.67 cm), seeds yield (7.220 g / plant−1), seeds yield / hectare (710.0 kg / h−1), number of branches (8.11 branches / plant−1), number of leaves (61.00 leaves / plant−1), dry plant weight (20.44 g/plant−1), number of pods (38.22 pods / plant−1), number of seeds (14.00 seeds / pod−1), Choline (163.61 mg/ml−1), Trigonelline (283.86 mg/ml−1), Carpine (83.92 mg/ml−1) and Gentianine (183.03 mg/ml−1).
The field experiment was conducted at Baqubah nursery, Directorate of Diyala agriculture in Iraq during summer growing of 2017 to study the effect of bio and chemical fertilizers with magnetized water as well as their interactions on growth and yield of melon cv. Piel de sapo. The experiment was laid-out in Randomized Complete Block Design with factorial experiment with three replications and two factors, included two treatments of fertilizer types (urea 50 kg N. ha−1) with Bio-fertilizer (Azospirillum brasilense and Azotobacter chroococcum) and chemical fertilizer (urea 100 kg N. ha−1) and the second factor included magnetized water and non-magnetized water. The results showed that bio & chemical fertilizer caused significant increases in all studied traits rates compared to chemical fertilizer. Also magnetized water revealed that significant superiority of all study traits rates compared to non-magnetized water. Whereas the interaction between bio and chemical fertilizers with magnetized water led to significant superiority in other treatments with the highest values of all study traits, viz. fruits yield (7.2 kg. plant−1), fruits weight (3.4 kg. replicat−1), total yield (28520.0 kg. ha−1), fruit length (27.6 cm), content of fructose sugar in fruits after 24 days of storage (13.1%), fruit diameter from outside and inside (16.8 and 5.1cm) respectively, content of fibers in fruits after 24 days of storage (6.4%), fruits content of TSS% after 3 days of storage (13.7%) and fruits firmness after 24 days of storage (2.8%).
A field experiment was carried out at the experimental farm of soil laboratory belong to Directorate of Diyala Agriculture, Iraq during 2017. The experiment comprises of different doses of biofertilizers (Azotobacter chroococcum and Pseudomonas fluorescens) 0.08, 0.14 and 0.28 g/plant to assess their performance on growth characteristics of broccoli. The experiment was laid out in randomized complete block design having four treatments with three replications. The data analysis revealed that the maximum of leaves numbers in the treatment of Biofertilizer, 0.28 (23.4) whereas the maximum area of bigger leaf and head diameter was recorded in all treatments of Biofertilizer 0.08, 0.14 and 0.28 (415.9, 340.3 and 373.9 cm) and (15.5,15.4 and 15.1cm) as compared with control (108.8 cm) and (3.0 cm) respectively.
This study investigated to evaluate the effect of Azotobacter chroococcum, Azospirillum brasilense, Trichoderma harzianum and Tri-calcium phosphate on sprouted barley grains under hydroponic culture conditions. The results showed that increase of a total weight of sprouted barley grains in treatments of A. chroococcum 257.3 g, Tri-calcium phosphate (TCP) 255.6 g and A. brasilense 254.3 g, whereas T. harzianum + TCP, A. brasilense + TCP and TCP recorded highest height of sprouted barley 25.8, 25.7 and 25.6 cm respectively, the protein ratio in the roots of sprouted barley was increased in A. chroococcum 19.8% followed by T. harzianum 18.4%, while the protein ratio in the vegetative portion was increased in T. harzianum + TCP, A. brasilense + TCP, A. chroococcum and A. chroococcum + TCP which reached 36.4, 32.7, 32.5 and 31.0 % respectively.
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