Page 10 - ผลการใช้สารเร่งซุปเปอร์ พด.3 ควบคุมโรคโคนเน่าที่เกิดจากเชื้อรา Sclerotium rolfsii ของกุยช่าย ในพื้นที่จังหวัดลำปาง

ห้องสมุดกรมพัฒนาที่ดิน

Abstract
The study examined the use of Microbial Activator Super LDD.3 and antagonistic
micro-organisms for controlling Chinese Chive stem rot causing by Sclerotium rolfsii in

Lampang Province. The study was conducted during October 2013-September 2015. This study
aimed to compare the result of controlling and reducing of disease incidence from Sclerotium
rolfsii using antagonistic micro-organisms. Experimental design employed in this study was
randomized complete block design with four replications and consisted of 6 treatments as
followed; 1) controlling without Sclerotium rolfsii use, 2) controlling with an individual

method, Sclerotium rolfsii and carboxin use, 3) using the Microbial Activator Super LDD.3
-2
compost at the rate of 6.25 g m , 4) using fresh formulation Trichoderma at the rate of 50 g
-2
-2
m , 5) using Trichoderma harzianum at the rate of 50 g m , and 6) using Bacillus subtilis at
-2
the rate of 0.67 g m . The results indicated that T1 controlling without Sclerotium rolfsii
gave the lowest percentage of disease incidence, 27.50%. On the other hand, the highest
-2
percentage was belonging to T6) using Bacillus subtilis at the rate of 0.67 g m (48.32%).
To compare the results of the six treatments, the percentage of disease incidence of the

three treatments (T3, T4 and T5) was no different from T2 (an individual method) but T3
tend to give the highest inhibit of Sclerotium rolfsii as 56.26%. For the growth of Chinese
Chives before a harvest, the number of tillers per plant and the heights of plant from each
treatment were not significantly different. The numbers of tillers were 4.51-4.59 per plant

whereas their heights were 18.61-18.88 centimeters. Therefore T3 using the Microbial
-2
Activator Super LDD.3 compost at the rate of 6.25 g m was the best method because
Microbial Activator Super LDD.3 consisting of Trichoderma sp. and Bacillus sp. which can
destroy, reduce and control the Sclerotium rolfsii in soil therefore increasing soil fertility and

enhancing the vigorous plant roots.