Back A. M. Primavesi
Fazenda Ecologica, Itai, SP, Brazil
Full Paper (PDF File: 74KB)
Abstract
Three factors that can help to reduce the adverse effects of drought on
crop plants are: surface mulches to prevent evaporation of soil moisture;
a well-developed root system to maximize the absorption of water and nutrients;
and, optimum and balanced nutrition which allows plants to use water more
efficiently. A field study was conducted to determine the effect of two-microbial
inoculants and different sources of mineral elements on drought resistance
and yield of field bean. Treatments included: microbial inoculants applied
to the seed and leaves; seed pelleted with quicklime and inoculants; and,
mineral sources applied to the seed and soil. Results showed that neither
the mineral sources nor the microbial inoculants alone could improve drought
resistance of the crop plants; however, when used together there was a
definite improvement for certain combinations. Widespread adoption of these
formulations by farmers will depend on their cost-effectiveness.