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Effect of nitrogen and sulphur on growth, yield and quality of sunflower (Helianthus annuus L.).

机译:氮和硫对向日葵(Helianthus annuus L.)生长,产量和品质的影响。

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摘要

An experiment on response of sunflower to different levels of nitrogen and sulphur was conducted during kharif 2011. The increase in the plant height, number of leaves/plant, leaf area index, dry matter accumulation and stem girth were significant with each increment of nitrogen upto 120 kg/ha and sulphur upto 30 kg/ha. Application of 120 kg N/ha registered higher seed yield (2108 kg/ha) over 60 and 90 kg N/ha. Among the sulphur treatments, application of 30 kg S/ha recorded highest seed yield (2048 kg/ha) over 0 and 15 kg S/ha. Application of 120 kg N/ha recorded maximum stalk yield (4072 kg/ha) over 60 and 90 kg N/ha, while the lowest stalk yield (3638 kg/ha) was observed in plots fertilized with 60 kg N/ha. Application of 30 kg S/ha recorded more stalk yield (4028 kg/ha), whereas low stalk yield (3696 kg/ha) was observed in plots with no sulphur application. Quality parameters viz., oil content, oil yield and protein yield were significantly higher with higher levels of nitrogen (120 kg/ha) and sulphur (30 kg/ha).
机译:在2011年Kharif期间进行了向日葵对不同水平的氮和硫响应的实验。随着氮含量的增加,株高,叶/株数,叶面积指数,干物质积累和茎周长的增加均显着。 120公斤/公顷,硫含量最高30公斤/公顷。施用120 kg N / ha的种子产量比60和90 kg N / ha更高(2108 kg / ha)。在硫处理中,施用30 kg S / ha在0和15 kg S / ha上记录最高种子产量(2048 kg / ha)。在60和90 kg N / ha的施肥量下,施用120 kg N / ha记录了最大的秸秆产量(4072 kg / ha),而在施肥60 kg N / ha的土地上观察到了最低的秸秆产量(3638 kg / ha)。施用30 kg S / ha记录的秸秆产量更高(4028 kg / ha),而在未施用硫的地块中观察到较低的秸秆产量(3696 kg / ha)。氮(120 kg / ha)和硫(30 kg / ha)含量较高时,质量参数即油含量,油产量和蛋白质产量显着更高。

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