Initial wheat response to Low and high rates of phosphate fortified compost
2000
KM. Muasya, K.M.(MOI University, Eldoret, Kenya) | Othieno, O.(MOI University, Eldoret, Kenya) | Okalebo, J.K.(J.K Okalebol)
A two year study was conducted to deter¬mine the effect of phosphate fortified wheat straw compost on a wheat crop. In the preliminary study the composts were at the levels 0, 2.5, 5.0, 10.0, 20.0 t ha-l and in the main study 0, 5.0, 10.0, 20.0, 40.0, 80.0 t ha-l. Oiammonium phosphate at the rec¬ommended rate of 40 kg P20S ha-l was used as the standard for the two years. Two different plots were used for the two experiments. The result of the first year crop indicated there was no treatment effect on the soil chemical properties. A statistical analysis of variance of the growth and yield para¬meters showed a no significant difference in compost treatments compared to the control. The OAP treatment significantly out yielded the low compost rates. Inthe second season, the high compost rates mainly 80 t ha-l significantly out yield¬ed the other compost rates and the stan¬dard OAP treatment. However, there were no changes in the soil chemical composi¬tion.
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