ABSTRACT
The experiments aimed at evaluating the effect of biofertilization with phosphobacterin [phosphate dissolving bacteria-PDB] under variable levels of phosphatic fertilization with superphosphate on yield, yield components and seed quality [protein and oil percentage of soybean, sesame and sunflower]. The results showed significant responses to biofertilization on most of the yield, yield component characters, seed quality, protein, oil percentages of soybean, sesame and sunflower. Biofertilization increased seed yield by 20.4, 25.3 and 15.4% over the control treatment for soybean, sesame and sunflower, respectively. However, seed oil content showed a reversible trend compared to seed yield. The highest seed protein content was found by using 100 kg/fed. superphosphate for soybean, while sesame and sunflower seeds contained the highest protein percentages at 200 kg superphosphate
Subject(s)
Soil/chemistry , Fertilizers/chemistry , PhosphatesABSTRACT
Soybean [Glycine max [L.] Maerill cv. Crawford] was intercropped with maize cv. Giza-2 in 2 and 2 and 2 and 4 row intercropping patterns for maize and soybean, respectively. The data showed that, soybean plants were able to receive more light when alternated with maize in 4 rows [2 and 4 pattern] than that of 2 and 2 pattern. The photosynthetic pigments content, i.e. chlorophyll a and chlorophyll b in soybean leaves which was markedly decreased under 2 and 2 intercropping pattern and to a lesser extent under 2 and 4 intercropping pattern as compared with the comparative treatment [solid II]. Soybean plant height, dry weight of stems, leaves, pods and leaf area were not statistically affected at 55 days from sowing. However, such reduction was significant at 70 days from sowing as compared with the solid planting. It could be concluded that choosing the proper intercropping pattern may reduce the adverse effects of the tall companion crop [maize] on the short intercropped crop [soybean]