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首页> 外文期刊>Fresenius environmental bulletin >EFFECTS OF FERTIGATION STRATEGIES ON NITRATE-NITROGEN LEACHING AND YIELD PARAMETERS OF CUCUMBER GROWN IN GLASSHOUSE
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EFFECTS OF FERTIGATION STRATEGIES ON NITRATE-NITROGEN LEACHING AND YIELD PARAMETERS OF CUCUMBER GROWN IN GLASSHOUSE

机译：施肥策略对温室黄瓜硝酸盐氮淋失及产量参数的影响

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In this study, the amount of nitrate leached from the soil and its effects on yield and quality of cucumber plant grown under greenhouse conditions were determined as a result of different fertigation strategies which was formed by changing the application time of the mixture of fertilizer solution during the irrigation cycle. For this purpose, five different fertigation strategies were applied, i.e. feeding of fertilizer solution during the whole irrigation period (F1), feeding of fertilizer solution during the first half of irrigation period (F2), feeding of fertilizer solution during the second half of irrigation period (F3), feeding of fertilizer solution between 1/4'th and 3/4'th irrigation period (F4) and injection of fertilizer solution immediately upon start of irrigation (F5) The highest and least yield was obtained in F1 (16.66 tons da~(-1)) and F3 (15.05 tons da~(-1)) fertigation strategies respectively. It was determined that fertigation strategies did not affect statistically the yield, fruit length, fruit diameter, plant height and stem diameter. On the other hand, it was found that the effect of fertigation strategies on nitrate-nitro gen (NO3-N) leaching was statistically significant. The highest NO_3-N leaching was observed in F2 and the least in F4 fertigation strategy. It was concluded that the best fertigation strategy to prevent the pollution of groundwater by minimizing NO_3-N leaching, the most appropriate strategy is F4, i.e. feeding of fertilizer solution between 1/4'th and 3/4'th irrigation period.
机译：在这项研究中，确定了温室条件下从土壤中沥出的硝酸盐的量及其对黄瓜植物产量和品质的影响，这是通过改变施肥方式在施肥过程中改变施肥时间而形成的。灌溉周期。为此，应用了五种不同的施肥策略，即在整个灌溉期间（F1）施用肥料溶液，在灌溉期间的前半部分（F2）施用肥料溶液，在灌溉的后半部分施用肥料溶液。 （F3）期间，在第1/4至3/4'灌溉期间（F4）期间注入肥料溶液，并在灌溉开始后立即注入肥料溶液（F5）在F1中获得最高和最低产量（16.66） F3（15.05吨da〜（-1））施肥策略。确定施肥策略不会在统计学上影响产量，果实长度，果实直径，植物高度和茎直径。另一方面，发现施肥策略对硝酸盐-氮（NO3-N）浸出的影响具有统计学意义。在F2中观察到最高的NO_3-N淋洗，在F4施肥策略中观察到最少。结论是，通过减少NO_3-N淋失来防止地下水污染的最佳施肥策略是最适合的策略是F4，即在灌溉期的1/4和3/4之间注入肥料。

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