Effect of Combining Rubber Effluent with Single Super Phosphate (ssp) on Some Soil Chemical Properties and Early Growth of Maize (<I>Zea mays</I>. L)
Titel:
Effect of Combining Rubber Effluent with Single Super Phosphate (ssp) on Some Soil Chemical Properties and Early Growth of Maize (<I>Zea mays</I>. L)
Auteur:
Robert Ehi Orhue Frank Ogbonnaya Uzu Ulamen Agbonsalo Osaigbovo
Verschenen in:
Journal of agronomy
Paginering:
Jaargang 6 (2007) nr. 2 pagina's 250-261
Jaar:
2007
Inhoud:
The green house trials were carried out at the Faculty of Agriculture, University of Benin, Benin City, Nigeria to determine the effect of rubber effluent and Single Super Phosphate (SSP) combination on some soil chemical properties, growth and nutrient uptake of maize in an Ultisol. The SSP used was 0-18-0. Five level-0, 30, 60, 90 and 120 kg ha<SUP>-1</SUP> SSP were combined with 6 levels of rubber effluent (0, 50,000, 100,000, 150,000, 200,000 and 250,000 L ha<SUP>-1</SUP>) in 6x1x5 factorial arrangement in a completely randomized design. Results of the effluent analysis showed that the effluent contains both micro and macro nutrients, slightly acidic pungent in odour and colourless. In the first cropping, soil pH, N, Ca, Mg, K, Na, Fe, Mn, ECEC as well as exchangeable acidity increased when compared with control. The available P and %C were however, reduced when compared with control. In the second cropping, all the nutrient elements declined further after harvesting. The content of N and P increased up to 150,000 L ha<SUP>-1</SUP> treatment with phosphorus combination. The N, P, K, Ca, Na, Al, Fe, Zn and Mn uptake were also higher at 150,000 L ha<SUP>-1</SUP> effluent treatment with phosphorus combination Mg uptake was however higher or greater at 150,000 L ha<SUP>-1</SUP> effluent treatment with phosphorus combinations. The textural status of the soil was not changed throughout the trials. All the treatments were not significantly different from one another in all the growth parameters 2 Weeks after Sowing (WAS). At final harvest, 150,000 L ha<SUP>-1</SUP> effluent concentration/30 kg ha<SUP>-1</SUP> of SSP was significantly (p< 0.05) better than other treatments including control in plant height, collar girth and leaf area. However, the number of leaves was not significantly different from one another throughout the period of the trials.
Uitgever:
Asian Network for Scientific Information, Pakistan