香水菠萝氮磷钾施肥效应和适宜施用量  

Effect of NPK Fertilization on Yield and Fertilization Recommendation for‘Tainong No.11’Pineapple

作　　者：张汉卿 卢明[1,2] 邓燕 阮云泽[1] 吴川德[3] ZHANG Hanqing;LU Ming;DENG Yan;RUAN Yunze;WU Chuande(College of Tropical Crops,Hainan University,Haikou,Hainan 570228,China;College of Resources and Environment,Southwest University,Chongqing 400716,China;Agriculture Service Center of Dalu Town,Qionghai,Hainan 571425,China)

机构地区：[1]海南大学热带作物学院,海南海口570228 [2]西南大学资源环境学院,重庆400716 [3]琼海市大路镇农业服务中心,海南琼海571425

出　　处：《热带作物学报》2021年第6期1619-1624,共6页Chinese Journal of Tropical Crops

基　　金：海南农业面源污染减排技术研究与示范(No.ZDKJ2017002)。

摘　　要：以香水菠萝为研究对象,采用"3414"施肥试验方案开展大田试验,研究氮、磷、钾肥不同施用量对香水菠萝产量和经济效益的影响,探讨海南香水菠萝生产适宜的施肥量推荐。结果表明:各施肥处理产量均高于无肥处理,缺素处理对香水菠萝产量的影响为氮>钾>磷;N_(2)P_(2)K_(2)处理的产量和净收益最高,分别为50350 kg/hm^(2)和167508元/hm^(2);对产量和施肥量进行肥料效应函数拟合分析,结果表明三元二次肥效函数为非典型肥效模型,二元和一元肥效函数拟合失真;应用产量频率分析方法得出施肥量N 317~422 kg/hm^(2)、P_(2)O_(5)66~92 kg/hm^(2)、K_(2)O 271~396 kg/hm^(2)时,产量达30870~50350 kg/hm^(2)的概率为95%,此时推荐施肥配比为1∶0.16~0.29∶0.64~1.25。A field experiment using the‘3414’design was conducted for Tainong No.11 pineapple in Hainan.The effects of different NPK formula fertilization treatments on yield and economic performance were studied,and further the optimized NPK fertilization recommendation for good yield was discussed.Results showed compared with the no fertilization treatment,different NPK formula fertilization treatment increased the yield of Tainong No.11 pineapple,and the reduction of nutrient deficiency on yield was in the order of N>K>P.Treatment N_(2)P_(2)K_(2) had the highest yield and net economic benefit,50350 kg/hm^(2) and 167508 yuan/hm^(2),respectively.The regression analysis results indicated an atypical ternary quadratic fertilizer effect model existing between NPK fertilization rates and yields,but binary quadratic function and unary quadratic function failed to give suitable regression.Using the yield frequency analysis method,the fertilization recommendation was 317~422 kg/hm^(2) for N,66~92 kg/hm^(2) for P_(2)O_(5),271~396 kg/hm^(2) for K_(2)O,respectively,which could gurantee the yield in the range of 30870~50350 kg/hm^(2) with 95%probability,and the ratio of NPK fertilization recommendation was 1:0.16~0.29:0.64~1.25.

关 键 词：香水菠萝 3414 推荐施肥 

分 类 号：S668.3[农业科学—果树学]