摘要
对海南南田农场反季节芒果的施肥研究表明,不同营养元素在各主要土壤类型上的反季节芒果贡献率差异较大,N、P、K分别为29.8%、22.9%、2.95%。各养分利用率在不同土壤类型上都较低,N、P、K平均利用率分别为5.63%、1.21%和10.31%。各地果树主要生育期养分变化趋势一致,说明反季节芒果生长具有较好规律。在试验基础上,提出各土壤类型上的施肥模型和最佳施肥方案。
Different levels of N,P,K fertilizers were applied to off-season mango trees in Nantian State Farm,Hainan. Different nutrient elements applied to the off-season mango grown in different types of soil had significant effect on the yield. Potassium (K) contributed 29.8% of the yield,nitrogen (N) 22.9% while phosphorus(P) only 2.95%. Utilization rate of each element was very low in various types of soil:5.63% for N,1.21% for P and 10.31% for K. All the nutrients had similar change during the stage of growth an...
出处
《热带农业科学》
2009年第1期12-16,共5页
Chinese Journal of Tropical Agriculture
关键词
芒果
反季节
贡献率
施肥模型
最佳施肥
mango
anti-season
contributed ratio
fertilization model
optimized fertilization
