稀土与氮磷钾配合施肥对油茶幼林生长与结果的影响  

Effect of combined rare earth micro-fertilizer and macronutrients on the growth and fruits of Camellia oleifera saplings

作　　者：魏宏通 WEI Hongtong(Yongtai Tengshan Provincial Nature Reserve Management Office,Fuzhou,Fujian 350700,China)

机构地区：[1]永泰藤山省级自然保护区管理处

出　　处：《武夷科学》2019年第2期86-90,共5页Wuyi Science Journal

摘　　要：以油茶为试验材料,采用正交试验方法,分析不同浓度稀土微肥与N、P、K肥配合施用对油茶株高、冠幅、单株产量和单果重的影响。结果表明,当N肥用量较低、P肥与稀土微肥施用量均较高时,不利于油茶生长和产量的提高;处理4(N肥120 g·株^-1、P肥45 g·株^-1、K肥85 g·株^-1、稀土微肥300 mg·L^-1)和处理7(N肥170 g·株^-1、P肥45 g·株^-1、K肥120 g·株^-1、稀土微肥200 mg·L^-1)的油茶长势及产量均较高,且优于对照处理,反映了稀土微肥与适量的N、P、K肥配合施用对油茶生长和产量提高具有促进作用,但单独施用稀土微肥不能达到良好肥效。以此确定,以处理4和处理7为较佳的稀土微肥与N、P、K肥配合使用量。Using Camellia oleifera as test material, an orthogonal experiment was performed to analyze the effects of different concentrations of rare earth micro-fertilizer and NPK fertilizer on plant height, crown width, yield per plant, and single fruit weight of C. oleifera. The results showed that low amount of N fertilizer in combination with high amount of P fertilizer and rare earth micro-fertilizer was not conducive to the growth and yield of C. oleifera. The growth and yields under treatment 4(120 g of N, 45 g of P, and 85 g of K per plant along with 300 mg·L-1 rare earth micro-fertilizer) and treatment 7(170 g of N, 45 g of P, and 120 g of K per plant along with 200 mg·L^-1 rare earth micro-fertilizer) were superior than the control values. These results reflect that the combination of rare earth micro-fertilizer and proper amounts of NPK fertilizer can promote the growth and yield of C. oleifera. The application of rare earth micro-fertilizer alone could not provide good fertilizer efficiency. Treatments 4 and 7 were the best combinations of rare earth micro-fertilizer and NPK fertilizer.

关 键 词：正交试验 稀土微肥 油茶 产量 

分 类 号：S794.4[农业科学—林木遗传育种]