Studies regarding the influence of rhizobacteria Bradyrhizobium japonicum and salycilic acid on water, mineral nutrition of soybean under insuficiency of phosphorus and moisture of soil

Abstract

Nowadays the farmers are largely cash limited and mineral fertilizers being costly, restricts their capacity to purchase fertilizers and hence it is needed to develop sustainable agricultural production especially under scarce water and nutrient environments. The low yields of legumes are partly due to infertility caused by carbonated soils which have low nutrient contents, particularly of available phosphates, insufficient water supply and compatible Rhizobium for adequate N2 fixation. In conditions of the Republic of Moldova phosphorus (P) deficiency of soil and drought are major environmental constraints which alter key physiological constituents and functions in plants. Nitrogen-fixing microorganisms besides their ability to assimilate nitrogen from atmosphere have a contribution for promoting the growth and nutrition of crops.

A study was carried out to determine the influence of rhizobacteria Bradyrhizobium japonicum and salicylic acid (SA) on water, nutrients contents in soybean leaves under low P supply and drought conditions.