Response of soybean yield and its components to rhizobium inoculation and nitrogen fertilization under different plant spacing in the newly reclaimed calcareous soil [electronic resource].

Includes reference.

Two field experiments were conducted at Nubaria Agric. Res. Station during 1999 and 2000 seasons to investigate the effect of two plant densities (10 15 cm between hills i.e. 32 and 22 plants/m2 ) and six fertilization treatments: 1) control uninoculation + no nitrogen fertilizer, 2) inoculation + no nitrogen fertiiizer; 3) inoculation + 30 kg N/fed; 4) inoculation + 60 kg N/fed; 5) inoculation + 90 kg N/fed, and 6) uninoculation + 90 kg N/fed, as well as their interactions on soybean yield and its components. The obtained results showed that increasing the distance between plants significantly decreased seed yield/fed and plant height and increased number of seeds/plant.

Summary in Arabic.

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