施氮对柠檬草产量、品质和土壤肥力的影响

IF 1.7 4区农林科学 Q2 HORTICULTURE

Journal of Horticultural Science & Biotechnology Pub Date : 2001-01-01 DOI:10.1080/14620316.2001.11511347

M.S. Munnu Singh

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引用次数: 2

摘要

在班加罗尔(13.58N, 77.558E, 930)进行了为期5年的野外试验。研究施氮量(0、50、100和150)的效果。对南印度半干旱热带条件下柠檬草(Cymbopogon fiexuosus)产量、油质和土壤肥力的影响香茅鲜草产量年际差异显著;产量一直增加到第二年，之后就开始下降。在5年内，对氮的响应是线性的，而精油的含量和质量仍然保持不变。油的含量和化学成分不随作物老化而变化。施氮、施磷维持了土壤肥力，但引起了土壤钾的耗竭。

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Long-term studies on yield, quality and soil fertility of lemongrass (Cymbopogon fiexuosus) in relation to nitrogen application

Summary A field experiment was conducted over five years (1992–97) at Bangalore (13.58N, 77.558E, 930.m above mean sea level) to study the effect of nitrogen application (0, 50, 100 and 150.kg N ha–1 year–1) on yield, oil quality and soil fertility of lemongrass (Cymbopogon fiexuosus) in the semi-arid tropical conditions of South India. Fresh herbage yield of lemongrass differed significantly between years; the yields increased up to the second year after which they started to decline. During the five years, the response to nitrogen was linear, while still maintaining the same content and quality of essential oil. The oil content and chemical composition of oil did not change as the crop aged. Application of nitrogen and phosphorus maintained the fertility of the soil while potassium depletion was noticed.

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来源期刊

Journal of Horticultural Science & Biotechnology 农林科学-园艺

CiteScore

3.90

自引率

5.30%

发文量

审稿时长

3 months

期刊介绍： The Journal of Horticultural Science and Biotechnology is an international, peer-reviewed journal, which publishes original research contributions into the production, improvement and utilisation of horticultural crops. It aims to provide scientific knowledge of interest to those engaged in scientific research and the practice of horticulture. The scope of the journal includes studies on fruit and other perennial crops, vegetables and ornamentals grown in temperate or tropical regions and their use in commercial, amenity or urban horticulture. Papers, including reviews, that give new insights into plant and crop growth, yield, quality and response to the environment, are welcome, including those arising from technological innovation and developments in crop genome sequencing and other biotechnological advances.