Publications
Journal Article:
EFFECT OF CONSUMED-TEA RESIDUE APPLICATION LEVELS ON AVAILABILITY OF SOME NUTRIENTS IN A CALCAREOUS SOIL.
Abstract:
Harvest and any plant originated organic residues are commonly used directly or after composting processes towards increasing soil organic matter content and/or plant nutrient sources. Non-composted consumed tea residue (CTR) was utilized in this study in a calcareous soil to investigate its effects on growth performance of corn plant (Zea mays L.) and micro nutrient supplying potential. A composite surface (0-20 cm) soil sample was obtained by simple randomized sampling (SRS) then homogenized soil sample sieved through 2 mm was used in pot trial. 0, 180, 270, 360, 450 and 540 g of dried CTR were thoroughly mixed 18 kg of soil. The pot trial was set up in completely randomized design with three replications. The plants were harvested after 60 days of growth period and analyzed for biomasses partition between different organs and their plant nutrients (N, Fe, Cu, Mn and Zn). ANOVA analysis indicated that the application doses of CTR influenced the investigated parameters. In terms of either biomass parameters or nutrient uptake best performance was obtained for 360 g CTR application and followed by 180 g treatment, equivalent (4560 and 2280 kg CTR decar-1). The efficiency of CTR was to decrease at doses above 360 g CTR. This behavior may be related to decomposition limited conditions. Therefore it can be concluded that the CTR can be used to increase soil organic matter content or as an environmentally friendly and cheap organic nutrient source. Key words: Consumed Tea Residue (CTR), calcareous soil, nutrients availability, corn.
Conference Paper :