EFFECT OF FOLIAR SPRAY WITH ZINC AND BORON ON YIELD AND SOME CHEMICAL CONSTITUENTS OF FABA BEAN. | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 3, Volume 25, Issue 3, March 2000, Pages 1873-1882 PDF (849.68 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2000.258769 | ||
| Author | ||
| E. A. El-Kabbany, | ||
| Soil, Water and Environment Res. Inst. Agric. Res. Center Egypt. | ||
| Abstract | ||
| Two field trials were carried out at the experimental farm of Gemmeiza Agricultural Research Station during the two successive seasons 1997/98 and 1998/99 to study the response of faba bean plants, cultivar Giza-2, to foliar spray with Zn and B at concentrations of 250, 500 and 750 ppm. The obtained data showed that leaves of plants sprayed with Zn or B contained more amounts of chlorophyll and carotene than untreated plants. In general, the differences in total chlorophyll among Zn or B levels were not significant after 60 days from sowing and significant at the late stage of growth (90 days after sowing). All studied levels of Zn and B significantly increased plant height, No. of branches / plant, straw and seed yield, 100 seed weight and protein yield. The mid rate of Zn i.e 500 ppm and the high one of B i.e 750 ppm were the most effective treatments in this respect. Concentrations of N,P and K in plants responded differentially (at the two stages of growth i.e 60 and 90 days after sowing) to the foliar spray with Zn or B. The highest values of N and P concentrations at 60 days from sowing were for plants sprayed by 500 ppm Zn or 750 ppm B. At the late stage of growth, 90 days after sowing, N concentration reached to maximum values with application of high level of either Zn or B while the highest P concentrations were obtained with the mid rate of Zn or B. The high level of Zn and the mid level of B reflected highest K concentrations at the late stage of growth Seeds and straw of plants sprayed with either Zn or B contained high amounts of N, P and K compared to untreated plants. Generally the highest relative increases in N, P and K uptake in seeds were obtained with application of Zn and B at 500 and 750 ppm respectively. | ||
| Keywords | ||
| Faba bean; micro-nutrient; zinc; boron; NPK uptake; chlorophyll; carotene; protein | ||
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