Effect of Fertilizer and Casing Material on Productivity of “Hed Nok Yoong” (Macrolepiota gracilenta (Krombh.) Moser)

Abstract

Study of nutrients's effect on productivity of Hed Nook Yoong (Macrolepiota gracilenta(Krombh.) Moser) was performed. The goal of this study was to develop suitable cultivating conditionsto increase a quantity of yield. Mushroom cultivation could be a side occupation to the communityin Ratchaburi province. The cultivation was set up using straw compost, was make up by straw 100kg. urea 1 kg. lime 1 kg. gypsum 1 kg. MgSO₄ 0.2 kg. bran 5 kg. and cased with sandy-lome soil oniron shelves in a plastic covered mushroom house. To evaluate the effect of additional nutrients onmushroom productivity, ammonium sulfate fertilizer (21-0-0): 0, 0.1, 0.5 and 1.0 kg. super phosphatefertilizer (0-20-0): 0, 1, 2 and 3 kg. were added to the compost made from 100 kg. of dry-straw. Pig,chicken and cow manure (0, 25, 50 and 75 %v/v) were mixed into casing soil. The highest yieldwas obtained, 18.65 kg. / 100 kg. dry-straw compost or 2.07 kg./m.2 when supplemented with 0.1 kg.of ammonium sulfate fertilizer, 1 kg. super phosphate fertilizer and combined casing soil with cowmanure (25%v/v) in the substrate, and more yield than the control (no additional nutrients) 5.4 kg.

Keywords : Macrolepiota gracilenta / Nutrient / Mushroom Compost / Casing Soil