蔗渣作蔬菜工厂化育苗基质的生物处理与施肥措施研究
A STUDY ON THE BIOLOGICAL TREATMENT ANDFERTILIZER APPLICATION TO UTILIZE BAGASSEAS A SUBSTRATE FOR FACTORY-CULTIVATEDVEGETABLE SEEDLINGS
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摘要: 本研究通过堆沤和增施氮肥处理，可使蔗渣成为育苗效果与泥炭相当的蔬菜工厂化育苗基质。研究结果表明，经３，６，９个月堆沤的蔗渣在施基本氮（１．０ｇＮＨ４ＮＯ３／Ｌ）时分别增施２．０，１．５和１．０ｇＮＨ４ＮＯ３／Ｌ，其效果与泥炭相当，而堆沤１２个月蔗渣施基本氮即可与泥炭的效果相当。在堆沤时适当增大堆体体积有利于促进蔗渣的使用效果；若堆沤时每１００ｋｇ蔗渣加入０．５ｋｇ尿素堆沤２个月，在使用时追施基本氮Abstract: This study was conducted by composting and applying nitrogen to utiliize bag-asse as a substrate which would be equal to peat medium for factory-cultivatedvegetable seedlings. The results showed that:(1) with basal fertilizer(1.0g of NH4NO3,2.0g of KH2PO4, 0.2g of K2SO4 and 0.6mg of micronutrients per liter) and additi-onal application of N by2,1.5,1.0 times respectively, bagasse composted for 3,6,and 9 months was equal to peat medium; (2) only basal fertilizer was needed forthe bagasse when composted for 12 months;(3) increasing the composting volumemade bagasse more effective as a growth substrate;(4) after being dressed with two-fold nitrogen,and with O.5kg of urea per 100kg added the bagasse composted for2 months was equal to peat medium;(5) after being dressed with additional 5.84gof urea formaldehyde per liter medium as basal fertilizer,the bagasse composted for2 months was equal to peat medium.
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Keywords:
- bagasse /
- factory-cultivated vegetable seedlings /
- growth medium
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