植物营养与肥料学报Issue(5)：1221-1233,13.DOI:10.11674/zwyf.2014.0519
铜基叶面肥及控释肥对辣椒生长发育和叶片保护酶等生理特性的影响
Effects of copper based foliar fertilizer and controlled release fertilizer on growth and leaf protective enzyme activities of pepper
摘要
Abstract
Objectives]According to characteristics of fertilizer loving, fertilizer tolerance and strict requirement for water, the objective of this experiment was to study effects of copper-based foliar fertilizers ( CBFF ) and controlled-release fertilizers ( CRF) on yield, quality, copper partitioning and activities of protective enzymes in plants of pepper, and to provide a theoretical basis for high-yielding and cultivation of pepper.[Methods]With the cultivar, Chifeng Niujiaowang as the test material, a pot experimental design was a factorial arrangement in a split-plot with two replicates.The main plots were CKW ( sprayed with water ) and CBFF ( copper-based foliar fertilizers), and the sub-plots were NF (no fertilizer), CCF (common compound fertilizers), CRF (controlled-release fertilizers) and CRF +W ( controlled-release fertilizers with water retaining agent ) .There were eight treatments as the combination both foliar fertilizer and soil fertilizer.Pepper fruits were harvested and weighted based on pepper maturation.Fresh leaves and a portion of fruits were collected and calculated in the fruit maturation period, and the concentrations of Cu, Fe and Zn in the plants were determine by using atomic absorption spectrometry.[Results]In 2011 and 2012 pepper growing seasons, the different interactions of CBFF and CRF have significant effects on the yield, and the optimal combination of fertilization for the yield is CBFF+CRF+W. Under the optimal application condition, the yields are significantly increased by 24.1%and 29.0%, respectively in the first year (2011) and the second year (2012) compared to CKW+CRF+W.In growing seasons, compared to the spraying clear water, the foliar spraying copper fertilizer significantly increases copper concentration in the pepper plants.Compared with the utilization of CRF+W, the Cu concentration of pepper fruits is increased by 103.9% with CBFF.Meanwhile, the active oxygen that is produced by copper based foliar fertilizers leads to increase the superoxide dismutase ( SOD) , peroxidase ( POD) activities, while the application of CBFF decreases the catalase (CAT) activity.By applying the CRF+W, the SOD activity of the spraying CBFF is increased by 26.6%.In the treatment with CBFF+CRF, higher POD activity and lower CAT activity are observed in leaves of pepper.Considering a variation in the content in pepper fruits, the treatments of CBFF+CRF and CBFF+CRF+W increase the soluble protein and vitamin C contents by a range from 12.8%-178.4%.[Conclusions] These results indicate that the appropriate combined fertilization management can increase micronutrients contents in peppers and improve the yield and nutrition quality of pepper.关键词
铜基叶面肥/控释肥/辣椒/生理特性/叶片保护酶活性Key words
copper-based foliar fertilizer/controlled-release fertilizer/pepper/physiological characteristics/protective enzyme activities of leaves分类
农业科技引用本文复制引用
孙瑶,张民,陈海宁,马庆旭,马金昭..铜基叶面肥及控释肥对辣椒生长发育和叶片保护酶等生理特性的影响[J].植物营养与肥料学报,2014,(5):1221-1233,13.基金项目
“十二五”国家科技支撑计划（2011BAD11B01，2011BAD11B02）；国家“948”重点项目（2011－G30）；山东省农业科技成果转化资金（鲁科农字［2010］79号）；山东省自主创新成果转化重大专项（2012ZHZX1A0409）资助。 （）
