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巴西蕉的营养特性及钾镁肥配施技术研究
BETTER CROPS2004 2 13
510640
Study on the Nutritional Characteristics of Baxi Banana
(Musa AAA Cavendish cv. Baxi)
and Application Technique of Potassium and Magnesium Fertilizer
Yao Lixian, Zhou Xiuchong, Li Guoliang, Peng Zhiping
(Soil and Fertilizer Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640
ABSTRACT: It is important to study the combined application of potassium and magnesium
fertilizer in banana fertilization. This paper investigated the nutritional characteristics of Baxi
banana (Musa AAA Cavendish cv. Baxi) and effect of combined application of potassium and
magnesium fertilizer on its growth. Results from field trials indicated that stem and leaf were the
main parts for nutrient accumulation. During its growing period, there was great variation of
Mg/K ratio in leaves. Banana required 275.3 kg N24.6 kg P900.0 kg K151.2 kg Ca73.2 kg
Mg23.9 kg S209 1.7 g Fe29 10.6 g Mn228.6 g B and 435.6 g Zn when the yield was as high
as 60t/ha. When soil magnesium was sufficient and the ratio Mg/K was 6.87, application of
magnesium fertilizer had no effect on growth, yield and quality of banana when large amount of
potassium was applied.
Keywords: Baxi banana, nutritional characteristic, potassium fertilizer, magnesium fertilizer,
Mg/K ratio
Mg/K60t/hm2
N 275.3 kgP 24.6 kgK 900.0 kgCa 15 1.2 kgMg 73.2 kgS 23.9 kgFe 2091.7
gMn 29 10.6 gB 228.6 gZn 435.6 g Mg/K6.87
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