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首页> 外文期刊>Pakistan journal of botany >Status and response to improved NPK fertilization practices in banana
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Status and response to improved NPK fertilization practices in banana

机译：香蕉氮磷钾肥改良实践的现状与对策

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Banana is a heavy feeder crop and requires high quantity of nutrients which must be supplied through fertilization to obtain optimum yield on sustainable basis. This study was conducted in order to assess banana nutrition status and its response to improved fertilizer management, especially K fertilizer. The study was conducted to evaluate NPK status of banana through soil and plant analysis and obtain quantitative data on the use of manures and mineral fertilizers along with the yield levels achieved. Field experiment involved at two locations comparing banana response to improved practice of fertilization (IP, 544-227-494 kg N-P2O5-K2O ha-1yr-1) with that of the famer's traditional practice (FP, avg. rate 381-227-93 kg N-P2O5-K2O ha-1yr-1). Plant and soil samples were secured during the month of March and additionally in June from grower's surveyed sites and fertilizer trials and analyzed for N, P and K. The average quantity of fertilizer nutrients used by banana growers were 437 kg N, 241.6 kg P2O5, and 15.4 kg K2O ha-1with average manure application of 13 ton ha-1and average banana yield of 29.3 ton ha-1. Analytical data showed that leaf contents of N, P and K ranged from 1.74% to 4.32% (average = 3.00%), 0.17 to 0.29% (average = 0.24%), and 1.99 to 3.56% (average = 3.15%) respectively. Regression analysis of the data showed that the relationship between leaf N (Y) and the N rate (X) could be described by the equation of the form Y = 0.7446+0.005X, R2= 0.96. In case of P, the relationship was Y = 0.209+0.0001X with R2= 0.32. Fertilizer response experiment showed that IP was significantly superior to FP in that it increased leaf K from 2.56% to 3.308% and banana yield from 51.2 to 60.8 ton ha-1. However N and P contents were statistically similar under both FP and IP treatments.
机译：香蕉是繁重的饲养作物，需要大量的养分，必须通过施肥来提供其养分，以便在可持续的基础上获得最佳产量。进行这项研究是为了评估香蕉的营养状况及其对改善肥料管理（特别是钾肥）的反应。该研究旨在通过土壤和植物分析来评估香蕉的NPK状况，并获得有关肥料和矿物肥料的使用以及达到的产量水平的定量数据。在两个地方进行的田间试验比较了香蕉对改良施肥措施的反应（IP，544-227-494 kg N-P2O5-K2O ha-1yr-1）与农户的传统施肥方法（FP，平均比率381-227） -93千克N-P2O5-K2O ha-1yr-1）。在3月和6月期间分别从种植者的调查地点和化肥试验中获取了植物和土壤样品，并对氮，磷和钾进行了分析。香蕉种植者平均使用的肥料养分为437千克氮，241.6千克P2O5，和15.4千克K2O ha-1，平均施肥量为13吨ha-1，香蕉平均产量为29.3吨ha-1。分析数据表明，叶片的氮，磷和钾含量分别为1.74％至4.32％（平均= 3.00％），0.17至0.29％（平均= 0.24％）和1.99至3.56％（平均= 3.15％）。数据的回归分析表明，叶片N（Y）和N速率（X）之间的关系可以用以下公式表示：Y = 0.7446 + 0.005X，R2 = 0.96。在P的情况下，关系为Y = 0.209 + 0.0001X，R2 = 0.32。肥料响应实验表明，IP显着优于FP，因为它使叶片K从2.56％增加到3.308％，香蕉产量从51.2吨增加到60.8吨ha-1。然而，在FP和IP处理下，N和P含量在统计学上相似。

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