Promoting yield and oyster mushroom cycle production by using date kernel and wheat straw mixture as a cultivation substrate

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Mushroom production can contribute to food security through producing food of high nutritional value and medicinal interest. This study examined the effectiveness of using date kernel (K) in a mixture with wheat straw (WS) as substrate on yield and different crop stages duration for Pleurotus ostreatus (P.O) cultivation. Five substrate formulas were investigated using K and WS, alone and in combination. The results indicated that there was a significant difference between formulas. Using wastes separately showed the lowest yield, whereas the substrate with 25% K gave the highest total yield (478 g) and biological efficiency (BE) of 95.61%, in 223 d and 78.52% as BE of three first flushes in 110.8 d. substrate with 75% K was more effective in term of time; it gave in 198.4 d 414 g of mushroom (BE: 82.95%) and 310.6 g (BE: 62.12%) for the three first flushes in 83.2 d. It is more effective to use K and WS in mixture than separately to cultivate P.O., The proportion depends on which we can give up; around 70 g of yield or 26 d as time difference; for more yield in longer time, using 25% K is more suitable, and 75% K is used for shorter time and less yield.

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