Use of Bio-products and Biomass on Okra Production in Good Agricultural Practices on Clay - Clay Loam Soils, Suphanburi Province

Abstract

The management of plant nutrients is crucial for the production of okra in terms of growth, quantity, and quality of the yield. Utilizing bio-products with biomass on okra production following Good Agricultural Practices (GAP) on clay-clay loam soils in Suphan Buri province is aimed to study plant nutrient management for okra production. The experiment was conducted in a farmer's field in
Sa Yai Som sub-district, U Thong district, Suphan Buri province. The randomized complete block design
with four replications consisting of 7 treatments. These were: 1) Control 2) Chemical fertilizer application
of 18-4-6 kg/rai of N-P2O5-K2O 3) Chemical fertilizer application of 18-4-6 kg/rai N-P2O5-K2O + cow
manure 1 ton/rai 4) Chemical fertilizer application of 18-4-6 kg/rai of N-P2O5-K2O + cow manure 1 ton/rai + phosphate-solubilizing bacteria 3 g/plant + arbuscular mycorrhizal fungi 3 g/plant 5) Chemical fertilizer application of 13.5-3-4.5 kg/rai of N-P2O5-K2O + cow manure 1 ton/rai 6) Chemical fertilizer application of 13.5-3-4.5 kg/rai of N-P2O5-K2O + cow manure 1 ton/rai + phosphate-solubilizing bacteria 3 g/plant+ arbuscular mycorrhizal fungi 3 g/plant and 7) Cow manure 1 ton/rai+phosphate-solubilizing
bacteria 3 g/plant+arbuscular mycorrhizal fungi 3 g/plant. The results of the experiment showed that the application of chemical fertilizer of 18-4-6 kg/rai of N-P2O5-K2O + cow manure 1 ton/rai + phosphate-solubilizing bacteria 3 g/plant+arbuscular mycorrhizal fungi 3 g/plant resulted in the tallest okra plants at 45 and 60 days of age, reaching heights of 54.98 and 84.68 centimeters respectively,
the maximum yield of okra is 1,303 kilograms per rai, with a net profit of 6,706.00 baht per rai.