番荔枝之營養診斷及應用現況

Other Title
The Application of Nutrition diagnosis for Sweet Apple (Annona squamosa)
Series/Report No.
農業試驗所特刊; 28
Part Of
Start Page
41
End Page
50
Date Issued
1989-05
Date
1989-05
Author(s)
蘇德銓
張茂盛
鄭秀美
D.C. Su
M.S. Chang
S.H. Cheng
URI
Abstract
經周年取樣結果，原訂之五月下旬一六月下旬及十二月上旬～十二月下旬兩段採樣時期或可修正為五月下旬～六月下旬及九月上旬～十二月下旬．各大量要素含量標準範圍可暫定為：五月下旬～六月下旬，N:2,75-3.25%,P:0.15-0.20%,K:1.3-1.8%,Ca:0.5-0.8%,Mg:0.15-0.35%；九月上旬～十二月下旬，N:2.6-3.1%,P:0.11-0.15%,K:0.8-1.2%,Ca:0.3-1.3%,Mg:0.3-0.5％。微量要素含量標準範圍兩時期均暫定為Fe:40-80ppm,Mn:50-500ppm,Zn:8-20ppm,Cu:10-40ppm,B:30-50ppm。目前按此一標準推荐肥料三要素之用量及預警其餘元素之過剩及缺乏等工作，並正透過農會之講習會進行運作，已頗受農友重視。 There are two suitable sampling time for leaf analysis in sweet apple and their macro nutrient levels ranged as followings: Late May to mid June: N: 2.75-3.25% ; P:0.15-0.20% ;K:1.3-1.8% Ca:0.5-0.8%; Mg:0.15-0.35%. Early September to late December: N: 2.6-3.1% ; P:0.11-0.15% ; K :0.8-1.2%; Ca:0.3-1.3%; Mg:0.3-0.5%. The normal micro nutrient contents in these two periods were the same, as for Fe: 40-80 ppm; Mn: 50-500 ppm; Zn: 8-20 ppm; Cu: 10-40 ppm; B: 30-50 ppm. N, P, K fertilizer application is now recommended according to the diagnosis results.
Event(s)
果園作物營養診斷應用研習會
Proceeding of a Workshop Application Of Nutritional Diagnosis In The Orchards Of Taiwan
Publisher
臺灣省農業試驗所
Type
book part
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