TIAN Liying,LI Shengli,WANG Qiang,et al.Effect of Slow-release Potassium Fertilizer on Cucumber Seedling[J].Northern Horticulture,2018,42(16):65-70.[doi:10.11937/bfyy.20174009]
缓释钾肥对黄瓜幼苗生长的影响
- Title:
- Effect of Slow-release Potassium Fertilizer on Cucumber Seedling
- 文献标志码:
- A
- 摘要:
- 以生物炭载体型缓释钾肥（A）和沸石载体型缓释钾肥（B）为研究对象，设置2种钾肥施用量（0.36、0.72 kg·m-3），测定并分析了黄瓜幼苗形态指标、叶绿素含量、基质理化性质以及植株养分含量，研究了钾肥不同种类及用量对黄瓜幼苗生长及养分含量的影响。以期找到适宜黄瓜植株生长的钾肥处理。结果表明：生物炭载体型缓释钾肥有利于黄瓜植株生长，提高黄瓜植株干物质量、壮苗指数、全磷含量以及钾素吸收量，其中，生物炭载体型缓释钾肥0.36 kg·m-3（以下均用A1表示）地上部、地下部钾素吸收量分别比不添加肥料高出39.8%和41.7%，与对照之间差异显著。沸石载体型缓释钾肥有利于黄瓜植株根冠比以及地上、下部钾含量的增加，尤其在沸石载体型缓释钾肥0.36 kg·m-3处理（即B1处理）时，地上、下部钾含量分别比不加肥料高出25.0%和15.8%。生物炭载体型缓释钾肥在黄瓜工厂化育苗中的效果优于沸石载体型缓释钾肥，最适添加量为0.36 kg·m-3，因此，黄瓜育苗效果最好的为A1处理。
- Abstract:
- The effects of different application rates of potassium fertilizer on the growth of cucumber were studied by using biochar carrier type slow release potash fertilizer (A) and zeolite carrier type slow release potash fertilizer (B).Two levels were 0.36 kg·m-3 and 0.72 kg·m-3.The effects of different types and dosage of potash on the growth and nutrient contents of cucumber seedlings were investigated by measuring and analyzing the morphological indexes,chlorophyll content,physicochemical properties and plant nutrient contents of cucumber seedlings.In order to find suitable potash fertilizer for cucumber plant growth,and provide theoretical basis for cucumber plantation.The results showed that bio-carbon carrier-type slow-release potash was beneficial to the growth of cucumber plants and the dry matter quality,strong seedling index,total phosphorus content and potassium uptake of cucumber plants.Among them,the amount of K uptake in aboveground and underground parts treated with biochar-supported slow-release potash fertilizer 0.36 kg·m-3 (simplified A1 below) were 39.8% and 41.7% higher than those without fertilizer,respectively,and the difference was significant.Zeolite-supported slow-release potassium fertilizer was beneficial to the root-to-crown ratio of cucumber plants and the increase of potassium content in shoots and roots,especially when zeolite-supported slow-release potash fertilizer was 0.36 kg·m-3 (B1 treatment).The contents of potassium in the shoot and root were 25.0% and 15.8% higher than those without fertilizer.In this study,the effect of biochar carrier type slow-release potash fertilizer was better than that of zeolite-supported slow-release potash fertilizer,and the optimum dosage was 0.36 kg·m-3.Therefore,the best effect of cucumber seedling was A1 treatment.
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备注/Memo
第一作者简介：田利英（1992-），女，河南开封人，硕士研究生，研究方向为设施栽培及工厂化育苗。E-mail:970824683@qq.com.责任作者：李胜利（1975-），男，河南洛阳人，博士，教授，硕士生导师，现主要从事设施栽培和工厂化育苗的教学与研究等工作。E-mail:lslhc@yeah.net.基金项目：河南省现代蔬菜产业技术体系专项资助项目（S2010-03-G03)；河南省科技攻关资助项目（152102110049）。收稿日期：2018-03-19