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ห้องสมุดกรมพัฒนาที่ดิน

Abstract
The study investigated on the effect of Trichoderma viride and the amount of
dolomitic limestone on the growth of Phytophthora palmivola in the compost fertilizer of

durian peel. The objectives were to study the use of T. viride and dolomite limestone as the
materials for reducing of P. palmivola, and the changes of temperature and chemical
properties in the compost fertilizer. This study was conducted in 2014-2015 at Chantaburi
Land development station in Naryaiarm District, Chantaburi Province. The experimental
design was completely randomized design (CRD) with 3 replications and 4 treatments. The

treatments consisted of 1) durian peel compost, 2) durian peel compost with P. palmivola,
3) durian peel compost with P. palmivola and 2% of dolomitic limestone and 4) durian peel
compost with P. palmivola, 2% of dolomitic limestone and T. viride. The result showed that

P. Palmivola at 60 days after decomposition commencement (DAC), comparing to 30 DAC, in
durian peel with P. palmivola , 2 % of dolomitic limestone and T. viride. was significantly
reduced from 3.03 to 0.33 log no. /gm. material, while the amount of T. viride significantly
increased from 3.50 to 6.17 log no. /gm. material. The average temperature during
o
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decomposition peaked to 39.53 C at 15 DAC, and reduced to 31.95 C at 60 DAC. The
amounts of nitrogen, phosphorus, potassium, potassium and calcium in compost fertilize
were not significantly differences among treatments. However, the amount of magnesium in
the treatments treated with P. palmivola and 2% of dolomitic limestone, and P. Palmivola,

2% of dolomitic limestone and T. viride, was 5.3-5.63 % greater than the rest of treatments.