MUTUAL EFFECTS OF BIO- AND NATURAL KFERTILIZATION ON FABA BEAN PLANTS

Osman, E. A.M.; Abd El-Aal, M.H.; EL-Shiekh, G. F.

doi:10.21608/fjard.2013.193717

MUTUAL EFFECTS OF BIO- AND NATURAL KFERTILIZATION ON FABA BEAN PLANTS

Document Type : Research articles.

Authors

Soils, Water and Environ. Res. Inst., Agric. Res. Center (ARC), Giza, Egypt.

10.21608/fjard.2013.193717

Abstract

This study was carried out under greenhouse conditions on soil taken
from Kalubiya, Governorate, Egypt to study the response of Faba bean plant
for bio-fertilizer and with natural sources of potassium fertilization i.e.,
compost rich in K content (CK) and K-feldspar (K-bearing mineral,
KAlSi3O8) (FK) compare with Potassium sulfate, K2SO4 (MK). They were
added in a solo or in a mixture forms at rates of half (1/2 KD), three–quarter
(3/4 KD) and full (KD) of the recommended dose (R.D) of potassium (KD =
24 Kg K2O / fed.). Faba bean (Vicia faba.L , cv. Giza 843 variety) were
inoculated with K-dissolved bacteria Bacillus circulans, (KDB). Yield and
contents of (N), ( P), (K), (Fe), (Mn) and (Zn) were studied. The results
revealed that inoculation with (KDB) gave the highest seed and straw
yields. Moreover, N, P, K, Mn and Zn contents increased as compared with
non- inoculation conditions. K-rates significant increased straw, seeds and
nutrient contents in compare with non – fertilizer treatment (control). As for
the effects of different types of K-sources on seed and straw yields as well
as their nutrients content, (MK) was the best treatment followed with (FK)
treatment, when both added in a solo form. With respect to the dual mixture
(MK+FK) followed with (MK+CK) gave the best effects. While, (FK+CK)
and the triple mixture of (MK+CK+ FK) gave pronounced response on the
yield of seed and nutrient's contents.

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