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首页> 外文期刊>Indian Perfumer >Dolomite application for increased biomass and oil yields of vetiver (Vetiveria zizanioides (L.) Nash.) in acidic soils
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Dolomite application for increased biomass and oil yields of vetiver (Vetiveria zizanioides (L.) Nash.) in acidic soils

机译：应用白云石可增加酸性土壤中香根草的生物量和油脂产量（Vetiveria zizanioides（L.）Nash。）

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摘要

Vetiver in south India is largely cultivated in coastal parts of Karnataka and the soils in this region are acidic and affect plant growth. A field study was conducted in an acidic (pH 5.2) sandy loam soil in Uttara Kannada district, Karnataka to test application of dolomite @ 2500 kg/ha on vetiver growth and yield. Dolomite application increased root and shoot length, number of tillers, total biomass and root yields and oil yield. It also increased soil pH (from 5.2 to 7.2), organic carbon (from 1.9 to 2.3), available N (from 521.3 to 558.6 kg/ha), available P (from 13.4 to 15.5 kg/ha), but decreased contents of K (from 156.80 to 140 kg/ha), Cu, Mn and Zn compared to the control plots. The results have shown that application of dolomite in the acidic soil has increased vetiver oil yield by nearly 50% and consequently increasing substantially returns from the vetiver cultivation in coastal Karnataka.
机译：印度南部的香根草主要种植在卡纳塔克邦的沿海地区，该地区的土壤呈酸性，影响植物的生长。在卡纳塔克邦Uttara Kannada地区的酸性（pH 5.2）砂壤土上进行了田间研究，以测试2500 kg / ha的白云石对香根草生长和产量的影响。白云石的施用增加了根和茎的长度，分till数，总生物量，根产量和油产量。它还增加了土壤的pH值（从5.2到7.2），有机碳（从1.9到2.3），有效氮（从521.3到558.6公斤/公顷），有效磷（从13.4到15.5公斤/公顷），但钾含量降低（从156.80到140 kg / ha），铜，锰和锌与对照地块相比。结果表明，在酸性土壤中施用白云石已使香根草油的产量提高了近50％，因此，在卡纳塔克邦沿海的香根草种植中获得了实质性的收益。

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