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首页> 外文期刊>Spanish Journal of Agricultural Research >Effects of N fertilizer on root growth in Zea mays L. seedlings
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Effects of N fertilizer on root growth in Zea mays L. seedlings

机译：氮肥对玉米幼苗根系生长的影响

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摘要

The agronomic performance of different proportions of mixtures of coconut fibre (CF) pith and spent mushroom substrate (SMS) was studied for their use as casing material in mushroom cultivation. After chemical and biological characterisation of the casing substrates qualitative and quantitative production parameters were evaluated in a cycle of Agaricus production. An increase in the proportion of SMS reduced the number of carpophores and overall yield; while the first flush was delayed, mushroom size tended to increase and the mushrooms had a higher dry matter content and a better texture, although their colour was worse. Combinations of CF pith and SMS of 4:1 and 3:2 (v/v) gave biological efficiencies of 92.9 and 82.6 kg/100 kg compost, respectively. These values compare well with that obtained from the commercial casings used as a control. The high electrical conductivity of the mixture containing the highest proportion of SMS would limit its use. However, the results indicate the viability of reusing SMS as an ingredient of casing material for mushroom cultivation. This alternative could be considered to partially replace the organic substrates normally used for mushroom cultivation, with the double advantage of decreasing cost and reducing the environmental impact of waste disposal.
机译：研究了不同比例的椰子纤维（CF）髓和废蘑菇基质（SMS）混合物的农艺性能，将其用作蘑菇栽培中的肠衣材料。在对肠衣基质进行化学和生物学表征后，在姬松茸生产周期中评估了定性和定量生产参数。 SMS比例的增加减少了荧光体的数量和总产量;尽管第一次冲洗推迟了，但蘑菇的大小趋于增加，蘑菇的干物质含量更高，质地更好，尽管它们的颜色更差。 CF髓和SMS的比例为4：1和3：2（v / v）的生物效率分别为92.9和82.6 kg / 100 kg堆肥。这些值与从用作对照的商业外壳获得的值相当。包含最高比例SMS的混合物的高电导率将限制其使用。但是，结果表明，将SMS重复用作蘑菇栽培的肠衣材料的可行性。可以考虑用这种替代方法部分替代通常用于蘑菇栽培的有机基质，具有降低成本和减少废物处理对环境的双重好处。

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