主要作物施肥適量試驗(十)鳳梨施肥適量試驗
Other Title
An Experiment on the N-P-K Requirement of Pineapple
Journal
農業研究
Journal Volume
11
Journal Issue
4
Start Page
27
End Page
35
Date Issued
1962-12-03
Date
1962-12-03
Author(s)
林國謙
邱再發
溫西濱
李蘭帝
K.C. Lin
T.F. Chiu
S.P. Wen
L.T. Li
Abstract
本試驗於民國44~46年在嘉義、鳳山及民國49~50年在彰化等三地舉行鳳梨施肥適量試驗，其試驗成績結果如下：
1. 肥料處理對鳳梨果實產量之影響：
氮肥對鳳梨果實增產之效應甚為明顯，尤以彰化、鳳山兩地即顯著增收到32～140%（與無氮區比較）之多，而以氮多量區及氮最多量區之收量最優。就磷肥之影響而言，肥效可謂甚微，難以判別磷之效應。就鉀肥之影響而言，其效應亦不甚明顯，僅嘉義乙地增收2~7%左右外，彰化及鳳山即呈負之效應。
2. 肥料三要素對鳳梨果實品質之影響：
氮肥之施用影響果肉之還元糖，全糖量及顏色深黃等效果顯著，增施氮肥可使酸度降低風味佳優之良果。施用磷肥之果實風味最劣。鉀肥之施用具有促進增加全糖量之傾向。總括而言，欲求得甜酸適度，風味佳良，肉色深黃之鳳梨果實，需施用量之氮、鉀兩要素為改進品質之主要條件。
The experiment on N. P and K requirements for pineapple growing were conducted duing the periods of 1955 to 1957 at Chiayi and Fengshan and 1960 to 1961 at Changhua.
The results of the experients have summerized as follows:
(1) Effects on the yield of pineapple fruits
Nitrogen has significant effect on the yield of the fruit in generall, The yield of the fruit has been increased as much as 32~140% at changhua and Fengshan where Nitragen seems to have more significant effect.
Potassium and Phosphorous have no significant effects in increasing the yield of the fruit.
(2) Effects on quality of the fruits
The application of Nitrogen has increased the contents of reducing sugar and total sugar in the fruit as well as promoted the color of the flesh.
Nitrogen seems to reduce the acidity of the juice and improve the taste of the flesh.
Potassium application tends to increase the content of total sugar in the fruit but the application of phosphorous lose flavor of the flesh.
It has been considered that the application of proper amounts of N and K is needed for improving quality of pineapple fruit.
Publisher
農業試驗所
Type
journal article
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