不同有机肥施用量对空心菜的产量及品质的影响.pdfVIP

中国摩学c亟提第22卷第8期2006年8月 http：／／www．casb．org．ca ·313· 不同有机肥施用量对空心菜的产量及品质的影响 赵月平，王洋洋，霍晓婷，王卫武 (河南农业大学，郑州450002) 摘要：通过无公害栽培技术中不同施肥量对空心菜的产量及品质的影响进行研究，得出结论：在实 来看．不同施肥量引起硝态氮含量变化无明显规律性，从整个生长周期来看，硝态氮在植株中的含量 在此次试验施肥量范围内Vc含量变化不明显。 关键词：空心菜；施肥量；产量；品质 中图分类号：$147．22文献标识码：A on and oftheWater ofDifferentAmount ImpactOutputQuality Spinach Fertilizer Organic Application Zhao Weiwu Yueping，WangYangyang，HuoXiaoting，Wang (Henan 450002) AgricultureUniversity，Zhengzhou Abstract：Theeffectsofdifferentamountof fertilizer inthenuisance—freecultivation organic application and ofwater werestudiedinthe resuhsshowedthat on quality paper．The techniquequantity spinach ofthis wasanobviousincreaseon underthecondition situation，earlier experiment，there growing growing and whenmedium onthewater it stage output organicfertilizer(15000kg／hm2)wasapplied spinach．But wontincreasemuchifexcessive organicfertilizer(225000kg／hm2)or one ofnitratecontenthadobscure whenthedifferent applied．Ingrowingperiod，thechange regularity offertilizerwas thewhole nitratecontentinthe from quantity applied．In growingcycle，the plantchanged littletomoreandthento1ittle．Butitwas10werthanthenationalstandarda11thewh