Humic acid improves growth, yield and oil content of Brassica compestris L.
2011
Rajpar, I. (Sindh Agriculture Univ., Tandojam (Pakistan). Dept. of Soil Sciences) | Bhatti, M.B. (Sindh Agriculture Univ., Tandojam (Pakistan). Dept. of Soil Sciences) | Zia-ul-Hassan (Sindh Agriculture Univ., Tandojam (Pakistan). Dept. of Soil Sciences) | Shah, A.N. (Sindh Agriculture Univ., Tandojam (Pakistan). Dept. of Agronomy) | Tunio, S.D.
Humic acid efficiently improves soil fertility and crop productivity, especially on poorly fertile and alkaline-calcareous soils. In this field study, the growth, yield and oil content of three mustard varieties viz., S-9, P-78 and AH-2001 were observed under varying levels of humic acid application to a poorly fertile and alkaline-calcareous soil. The humic acid was applied to soil at the time of sowing @ 0, 3.17, 6.35, and 9.35 kg per acre. Overall varieties, compared to control, the application of humic acid @ 6.35 kg per acre positively affected almost all the growth and yield parameters. The variety S-9 responded comparatively better to all the application rates of humic acid than its other two counterparts. The validity of these results is warranted through further experiments.
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