Effects of Pig Compost Application on Productivity of Peanut in Penghu Area

G.L.Jou；Y.H.Tsai；Y.Y.Chiou1

Abstract

　This experiment was conducted in Penghu branch station in order to study the effect of applying pig compost at 0, 5, 10, 15, 20, 25 t/ha on peanut yield and soil fertility in a moderately alkaline soil. The results were summarized as follow :

　Peanut yield was significantly increased with pig compost application in 1992 and 1993. Yield regression showed that pod yield was the highest for 13.9 t/ha of pig compost application in the first year, and 14.1 t/ha in the second year.

　The rate of shelling was significantly increased with pig compost application, but was inhibited when application was exceeded 20 t/ha. The disease of rosette was increased significantly with application of pig compost over 20 t/ha. The disease of rosette was increased in the second year than the first year. It might be referred to continuous cropping.

　The pH value and P2O5 content of soil weren't affected by pig compost application, while the O.M. and K2O contents were increased significantly. Linear regression showed that O.M. content increased 0.16 to 0.19% and K2O content increased 17.6 to 21.7 kg for 10 t/ha of pig compost application each crop.

Key words: Pig Compost, Penghu Area, Peanut, Productivity.