EFFECT OF SOME HUMIC ACIDS ON WHEAT PLANT GROWN IN DIFFERENT SOILS | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 6, Volume 31, Issue 6, June 2006, Pages 4031-4039 PDF (3.1 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2006.204049 | ||
| Authors | ||
| A.A. Taha; A.S. Modaihsh; M.O. Mahjoub | ||
| Soil Sci. Dept., College of Food and Agricultural Sci., King Saud Univ., Saudi Arabia | ||
| Abstract | ||
| A pot experiment was conducted to study the effect of four humic acids extracted from different composts on wheat plant (Triticum aestivum L. cv. Yecora rojo) grown in a highly calcareous loamy sand soil (CaC03=28%) and in noncalcareous sandy soil (CaC03= 4.2%). The humic acids were applied at five rates (0, 50, 100, 150, and 200 kg ha-"_ All pots received 30% of the recommended amounts of inorganic fertilizers (N, P and K). The obtained data show that the available nutrients (P, K, Fe, Mn, Zn and Cu) were higher in noncalcareous soil in compared to the calcareous soil. The results also show that increasing the rates of the investigated humic acids resulted in an increase in the organic matter content in the two studied soils , the macro and micronutrients uptake (N, P, K, Fe, Mn, Zn and Cu) by wheat plant and its yield (grain and straw). Application of humic acid which extracted from the animal compost gave the highest values of available nutrients, organic matter content, yield and yield components as well as nutrients uptake by wheat plant. This indicates that this humic acid is in a good mature state than the other studied humic acids. | ||
| Keywords | ||
| humic acids; available nutrients; composts; wheat plant | ||
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