一种有机矿质复合剂对小米辣育苗效果及基质酶活性的影响

Effects of an organic mineral compound on the seedling quality of chili pepper(Capsicum frutescens L.)and soil substrate enzyme activity

为明确蔬菜工厂化育苗中一种新型有机矿质复合材料对小米辣(Capsicum frutescens L.)幼苗生长质量及基质酶活性的影响,采用单因素试验,设置5个不同浓度并以商品育苗基质为原料进行小米辣育苗盘育苗,测定小米辣生长相关指标和基质酶活性。结果表明,15 g·L^(-1)和30 g·L^(-1)处理的幼苗干质量及生长函数显著高于其他处理,但出苗率却低于对照。其中,15 g·L^(-1)处理叶、根可溶性糖含量及根系活力分别比CK提高9.21%、105.48%、84.92%。在基质土壤酶活性中,除过氧化氢酶活性低于CK外,15 g·L^(-1)处理蔗糖酶、脲酶、酸性、碱性磷酸酶均显著高于对照。因此,该试验条件下,15 g·L^(-1)有机矿质复合剂对小米辣幼苗生长有促进作用,同时可提高基质土壤酶活性,这为小米辣工厂化育苗应用、培育优质秧苗提供了参考和思路。

A experiment with 5 treatment levels was conducted to explore the effects of a new organic mineral material on the growth quality of chili pepper(Capsicum frutescens L.)seedlings and the substance enzymes activity in vegetable factory seedlings,using commercial seedling production soil mixture.The growth-related indexes and soil substrate enzyme activities were assayed.The results show that dry weight and growth rate were significantly higher for 15 g·L^(-1)and 30 g·L^(-1) treatments,but the emergence rate was lower than CK.Soluble sugar content in leaf and root,and root vitality of the 15 g·L^(-1) treatment were 9.21%,105.48%and 84.92%higher than CK.Soil substrate enzyme activities,except for catalase activity lower than CK,invertase,urease,and acid/alkaline phosphatase for the 15 g·L^(-1) treatment were significantly higher than control.Under the test conditions,the 15 g·L^(-1) organic mineral compound can promote the growth of chili pepper seedling and improve the soil substrate enzyme activity.This provides a new venue for high quality chili pepper seedling production.