Application Of Mushroom Residue As Melon(Cucumis Melo L.)Seedling Substrate

Shanghai keeps ahead in mushroom industrialized production, ranking top all over the country. On average one ton of mushrooms production goes with four tons of mushroom residue. In this case, thousand tons of mushroom residue are produced, burned or optionally disposed, which has caused atmosphere and water pollution. Enlightened by the Spark Program ‘Low cost large scale fruit and vegetable seedling production technology integration and demonstration’, this research aims at investigating into the reuse of mushroom residue, especially as a peat substitute in the Cucumis melon nursery.The first part of this research investigated changes of physical and chemical properties before and after fermentation of different mushroom residue, and compared the after fermentation mushroom composts with the mostly used substrate peat, discussed the uses of four kinds of spent mushroom composts(fecal and grass、cellulose、herbs and wood rotting). Results indicated that physical properties of fecal and grass had no obvious change and partial chemical properties of fecal and grass became worse after composting. Effective form contents of main chemicals of fecal and grass decreased and should be returned to field directly. All indicators of cellulose、herbs and wood rotting are better after composting, most of physical and chemical indicators are similar to peat. Partial of them performs better. Thus three kinds of spent mushroom composts could be used as ground substances of peat substitute in soilless culture and industrialized seedling after complete composting.The second part screened the herbs and wood rotting styles mushroom residue as the materials for Cucumis melon scale and industrialized breeding, by measuring the growth of the Cucumis melon, chlorophyll content, content of soluble sugar and protein, root activity, and Chlorophyll Fluorescence Parameters Pn、Gs、Ci、E. According to physical and chemical properties, design 8 compressed substrate block formulas treatments and control check. The seeding test shows that Pleurotus eryngii residue formula Y-1, which with 40% Pleurotus eryngii residue, 30% peat, 23% soil, 1% Additive,has better performance, show tiny differences in indicators, Lentinula edodes residue formula Y-7, which is composed of 35% Lentinula edodes residue, 30% peat, 23% soil, 10% Lignin, 1% Additive,part of performance better than CK. Due to the large space for the roots of plants provided better cushioning. In order to increase the consumption of the mushroom residue, and reduce the consumption of the peat, by using the above formulas, can reduce costs about 40 percent, and can effectively enhance seedling resistance.The result of screening test for industrialized seedling shows that, high proportion of mushroom formula significantly inhibited the root growth, and the seedling shows vacant prime symptom, probably because of excessive levels of certain elements, and lead to Ion antagonism. Because of the small space in industrialized seedling, it provided worse cushioning for the roots of plants, and there is a risk that using mushroom residue as an alternative in plug seedling. The result shows that, Pleurotus eryngii residue formula, when the proportion of Pleurotus eryngii residue, Peat, Perlite, Vermiculite is 1:8:3:1, has a better performance, at the 31 days’ stage the seedling index 20.9% is higher than the control check, the content of chlorophyll, soluble sugar and protein are better than the CK, the result is better,can be popularized. Other formulas show worse performance and are not recommended.