Salinity is the most common problem in arid and semi-arid regions hindering nutrient accumulation in plants. A field trial (2017-18) was carried out to study the effect of sewage sludge (SS) and saline water irrigation on nutrient uptake under the pearl millet-wheat system and soluble ions in the soil. The experiment consisted of three irrigation levels (canal water, 8 and 10 dS/m ECiw saline water) and five fertilizer treatments i.e., control, sewage sludge (SS)- 5 t/ha, SS (5 t/ha) + 50% recommended dose of fertilizer (RDF), SS (5 t/ha) + 75% RDF and 100% RDF where sewage sludge was applied in rabi season only. The results indicated that the saline water irrigation significantly increased the concentrations of soluble ions (Na+, K+, Ca2++Mg2+, HCO3-, SO42- and Cl-) in the soil, and also the increase was non-significant under sewage sludge application. Na+ and Cl- ions were dominated under saline conditions among the soluble ions in the soil. The nutrient (N, P and K) uptake by grain and stover/straw of pearl millet and wheat crops were significantly reduced under saline environment. However, the maximum uptake in both crops was obtained under canal water irrigation (0.35 dS/m). Among fertilizer treatments, the maximum uptake (NPK) in both crops was attained under RDF being at par with SS (5 t/ha) + 75 RDF except K uptake in pearl millet crop, where the highest K uptake was obtained with SS (5 t/ha) + 75 RDF which was remained statistically at par with RDF treatment. The interactive effect was however non-significant. It is concluded that incorporating SS would enhance nutrient uptake in crops under saline conditions besides solving its dumping problem.

中文翻译：

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半干旱地区珍珠粟-小麦种植系统下污泥和盐水灌溉对土壤可溶性离子和养分吸收的影响

盐分是干旱和半干旱地区阻碍植物养分积累的最常见问题。进行了田间试验（2017-18），研究了污水污泥（SS）和盐水灌溉对珍珠粟-小麦系统养分吸收和土壤中可溶性离子的影响。该实验包括三个灌溉水平（运河水、8 和 10 dS/m ECiw 盐水）和五个肥料处理，即对照、污水污泥 (SS)- 5 t/ha、SS (5 t/ha) + 50%推荐的肥料剂量 (RDF)、SS (5 t/ha) + 75% RDF 和 100% RDF，其中污水污泥仅在 rabi 季节施用。结果表明，盐水灌溉显着增加了土壤中可溶性离子（Na+、K+、Ca2++Mg2+、HCO3-、SO42-和Cl-）的浓度，在污水污泥应用下，增幅也不显着。土壤中可溶性离子中Na+和Cl-离子在盐碱条件下占主导地位。在盐碱环境下，珍珠粟和小麦作物的谷物和秸秆/秸秆对养分（N、P和K）的吸收显着降低。然而，两种作物的最大吸收量是在运河水灌溉下获得的（0.35 dS/m）。在施肥处理中，两种作物的最大吸收量 (NPK) 在 RDF 与 SS (5 t/ha) + 75 RDF 下均达到最高，但珍珠粟作物的 K 吸收量最高，其中 SS (5 t/ha) + 75 RDF，在统计学上与 RDF 处理持平。然而交互效果并不显着。