Solubilization by nematode-controlling Trichoderma of nutrients to promote rice growth, yield and phosphorus content

Abstract

Importance of the work: Nematode-controlling Trichoderma spp. have various potential uses, one of which is the ability to dissolve minerals in the soil for RD31 rice growth promotion.
Objectives: To evaluate the efficacy of Trichoderma and the effects of solubilized phosphate by Trichoderma on the growth and yield of rice in the greenhouse.
Materials & Methods: The experiment used a complete randomized design with 12 treatments and 4 replications. The effect of Trichoderma was analyzed on the efficiency of acid production, phosphorus availability and potassium exchangeability. The growth, yield and phosphorus content of rice were examined.
Results: In total, 30 isolates produced acid. The isolate NTW1.1/1 produced the highest phosphorus availability (207.64 mg/L) and the isolate Sp1 had the highest potassium exchangeability (1.35 mg/L). At 120 d, the isolate NTW1.1/1 increased the height and tillering of rice (109.29 cm and 15.00 plants/hill, respectively). Trichoderma increased the rice yield by 18.17% compared to uninoculated rice. This isolate with a chemical fertilizer level of 100% produced the highest phosphorus content in the rice plants.
Main finding: The solubility effect of Trichoderma on phosphorus or potassium, or both, was appraised and NTW1.1/1 or chemical fertilizers were identified as influencing the growth and yield of rice in the Manorom soil series.