Soil science society of East Africa (SSSEA): Soil technologies for sustainable smallholder farming systems in East Africa, proceeding of the 15th annual general meeting
1996
A two year study was conducted to determine 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. Diammonium phosphate at the recommended rate of 40 kg PzOs 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 parameters showed a no significant difference in compost treatments compared to the control. The DAP treatment significantly out yielded the low compost rates.Inthe second season, the high compost rates mainly 80 t ha-l significantly outyielded the other compost rates and the standard DAP treatment. However, there were no changes in the soil chemical composition.
显示更多 [+] 显示较少 [-]