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首页> 外文期刊>Agricultural Water Management >Complementary irrigation with saline water and soil organic amendments modified soil salinity, leaf Na+, productivity and oil phenols of olive trees (cv. Chemlali) grown under semiarid conditions
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Complementary irrigation with saline water and soil organic amendments modified soil salinity, leaf Na+, productivity and oil phenols of olive trees (cv. Chemlali) grown under semiarid conditions

机译：盐水和土壤有机修正的互补灌溉改性土壤盐度，叶Na +，生产力和油酚的橄榄树（CV.Chemlali）在半干旱条件下种植

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Compost, olive mill wastewater and legume cover crops combined with complementary irrigation by saline water were tested under field conditions during 2016 and 2017 cropping seasons ('Off' and 'On' years respectively), in an organic mature olive grove cv Chemlali, grown at a density of 100 trees. ha(-1). The experiment was conducted with four agronomic practices (TC-no amendment; TP-olive trees amended with compost, TM-olive trees amended with olive mill wastewater and TL-olive trees intercropped with legumes) factorially combined with two irrigation treatments (NI: non-irrigated olive trees and IR: olive trees irrigated with saline water of 4 g.l(-1)). The complementary irrigation by a limited quantity of saline water (4 m(3).tree(-1) per season) applied during the fruit growth (May-September) increased significantly the soil water content (SWC) mainly in the plot amended with compost. In both irrigated and rain-fed plots, the soil electrical conductivity (SEC) increased significantly during the dry season mainly in the control and the plot amended with olive mill wastewater (OMWW). Under rain-fed conditions, leaf sodium contents decreased by about 30 and 50%, respectively in olive trees amended by compost and those intercropped with legumes. Complementary irrigation with saline water increased leaf sodium levels in all plots, mainly in trees amended with OMWW, by about 40% compared to those of OMWW plot grown under rain-fed conditions. The level of leaf nitrogen increased by the application of both soil organic amendments and irrigation, while leaf phosphorus level was only affected by irrigation salinity, except for trees intercropped with legumes. Shoot growth, oil yield and fruit pomological characteristics were significantly improved either by the soil organic amendments or by the complementary irrigation. Nevertheless, phenol contents in fruits and in olive oil were significantly affected by compost and irrigation with saline water. Intercropping olive trees with legumes enhanced phenol contents in fruits and olive oil.
机译：在2016年和2017年播种季节（分别为“几年”）的现场条件下，在现场条件下进行钙水和豆类覆盖作物的植物覆盖作物在“几年”（分别为“）”中，在“多年”中，在“多年”中，在一个有机成熟的橄榄树林CV Chemlali，生长密度为100棵树。哈（-1）。该实验是用四个农艺实践进行的（TC-No修正; TP-Olive树用堆肥修正，用橄榄油废水和TL-橄榄树与豆类的TL-Olive树修正）与两种灌溉治疗（Ni：非 - 血液树木和红外：橄榄树用4GL（-1）的盐水灌溉。在果实增长（5月9月）期间，在果实增长期间施用有限的盐水（4米（3）小时）互补灌溉（4米（3）。堆肥。在灌溉和雨馈地块中，土壤导电性（SEC）在干燥季节，主要在对照中，并用橄榄磨废水（OMWW）修正的图。在雨喂养条件下，叶片钠含量分别在堆温树上分别下降了约30％和50％，并通过堆肥和豆类的间作。与盐水浓度的灌溉灌溉在所有地块中增加了叶钠水平，主要是在雨喂养条件下种植的OMWW地块的树木进行了约40％。通过土壤有机修正和灌溉的应用，叶片氮的水平增加，而叶磷水平仅受灌溉盐度的影响，除了用豆类的树木进行树木。通过土壤有机修改或通过互补灌溉，射击生长，油产量和水果杂物特征显着改善。然而，水果和橄榄油中的酚含量受盐水堆肥和灌溉的显着影响。间作橄榄树与豆类增强了水果和橄榄油中的酚含量。

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