【作者】 张翠华； 郑成淑； 孙霞； 朱翠英；

【Author】 ZHANG Cui-hua ZHENG Cheng-shu SUN Xia ZHU Cui-ying (College of Science and Technology,Shandong Agricultural University,Tai’an 271018)

【机构】 山东农业大学园艺科学与工程学院；

【摘要】 以切花菊品种‘神马’为材料,研究了控释肥对菊花有效养分的利用率以及生长和观赏品质的影响,结果表明,控释肥处理生长季土壤有效养分浓度变化与菊花生长需肥规律基本一致,而普通复合肥处理土壤养分浓度早期过高,中后期偏低。同一施肥水平条件下,控释肥处理的植株比普通复合肥处理的植株高,叶数多,叶绿素含量高,花朵鲜重和干重增加。控释肥处理的叶片N、P、K含量比普通复合肥处理显著增加。说明控释肥可以提高有效养分利用率,并提高观赏品质。更多还原

【Abstract】 Effects of controlled release fertilizer(CRF)on the available nutrient utilization rate,and growth and ornamental value of chrysanthemum was studied with Dendrandema grandiflora‘Shenma’.The results showed that changes of soil available nutrient concentration of CRF application treatments was similar with nutrient uptake trend during chrysanthemum growth, but in common compound fertilizer(CCF)application treatments,the soil available nutrients were too high in early stage,and were too low in middle and later stage.At the same fertilization level,plant height,chlorophyll content and ornamental value of chrysanthemum with CRF treatments were higher than those of CCF treatments,and leaf number,fresh and dry weight of flower increased significantly in CRF treated plants than in CCF treated plants.The contents of N,P and K of chrysanthemum plants with CRF treatments increased significantly than those with CCF treatments.The results suggested that CRF incresed available nutrient utilization rate and ornamental quality of chrysanthemum.更多还原