Effect of three substrates on the growth and yield of two cantaloupe varieties
1995
Tanimnun Jaenaksorn | Supachai Ratanopas
Experiment was designed to compare a local substrate (fine loose coconut fibre) with two import synthetic substrates (Rockwool and Polyurethane) and their effects on growth, yield and some characteristic qualities of two cantaloupe varieties. The drippers were supplied and recirculated with nutrient feed to plants automatically controlled for pH and electro conductivity (EC.). Much attention was paid to the changes of nutrient solution in the substrate slabs which were daily monitored by manual pH and EC maters. A review on hydroponics in Thailand, an installation of automatic system and the composition and management of nutrient solution were also given. The results showed that the local compostable substrate met the present economic, ecological and ergonomic standards of Thai greenhouse horticulture. The relative merit of one substrate to another were drawn from this trial. Recommendation that should be made was that the growing techniques should be adjusted to the properties of each type of substrates. Besides, the problems occurred during the experiment were identified.
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