滴灌施肥对红毛丹产量、养分吸收利用和土壤肥力的影响  

Effects of Drip Fertigation on Rambutan Yield, Nutrient Uptake and Use Efficiency and Soil Fertility

作　　者：臧小平[1] 林兴娥[1] 戴敏洁[1] 葛宇[1] 谭琳[1] 丁哲利[1] 马蔚红[1] 

机构地区：[1]中国热带农业科学院海口实验站,海口570102

出　　处：《灌溉排水学报》2016年第8期83-86,共4页Journal of Irrigation and Drainage

基　　金：农业部2015年物种资源保护(农业野生植物资源保护)项目;中央级公益性科研院所基本科研业务费专项资金项目(1630062014018)

摘　　要：通过田间小区试验,探讨了不施肥、常规施肥和滴灌施肥3种不同灌溉施肥方式对红毛丹产量、养分吸收利用及土壤肥力的影响。结果表明:滴灌施肥下红毛丹产量最高(5 570.4 kg/hm^2),较常规施肥和不施肥分别增产24.84%和149.34%。滴管施肥条件下,植株成熟叶含N、P、K量显著提高,氮、磷、钾肥农学效率及肥料偏生产力分别为33.86、48.06、27.69、19.31 kg/kg,较常规施肥分别提高170.23%、91.70%、65.71%、73.03%。且土壤有机质、p H值较FP处理显著提高,增幅分别为4.7%、2.4%,矿质养分维持稳定供应。滴灌施肥对提高红毛丹产量和养分资源利用率都有积极意义。A field plot experiment was conducted in Baoting county to investigate the effects of no fertilizer （CK）, farmer＇ s practice （FP） and drip fertigation （DF） on rambutan yield and soil physical and chemical proper- ties. The results showed that the yield was the top in the DF treatment （5 570.4 kg/hm2）, which increased by 24.84% and 149.34% than those of FP treatment and CK.The nitrogen, phosphorus and potassium contents of ma- ture leaf in DF treatment were significantly higher than those in FP treatment. The agronomic efficiencies of the N, P, K fertilizer and partial factor productivity of fertilizer in DF treatment were 33.86, 48.06, 27.69 and 19.31 kg/kg, which increased by 170.23%, 91.70%, 65.71% and 73.03% than those in FP treatnebt respectively. The DF treatment increased the organic matters and pH in the soil by 4.7% and 2.4% compared with the FP treatment. The drip fertigation is appropriate for increasing rambutan yield and improving the nutrient use efficiency.

关 键 词：红毛丹 滴灌施肥 产量 养分吸收利用效率 土壤肥力 

分 类 号：S667.9[农业科学—果树学] S275.6[农业科学—园艺学]