Rice Productivity, Zn Biofortification, and Nutrient-Use Efficiency as Influenced by Zn Fertilization Under Conventional Transplanted Rice and the System of Rice Intensification
نویسندگان
چکیده
The northwestern Himalayas (NWH) in India have low rice productivity (∼2 t ha −1 ) and quality due to poor crop nutrient management predominantly Zn-deficient soils. Hence, a field experimentation the NWH compared conventionally transplanted (CTR) system of intensification ( SRI) under three practices (NMPs), viz ., 1) farmers’ fertilization practice, FYM @ 5 + N:P 2 O :K 50:40:20 kg (FFP); 2) recommended dose fertilization, 10 90:40:40 (RDF); 3) RDF Zn using ZnSO 4 25 (RDF Zn). results revealed that SRI practice harnessed significantly higher yield different NMPs (6.59–8.69 with ∼1.3–1.4- ∼3.3–4.3-fold enhancements over CTR average NWH, respectively. had greatest improvement panicle number hill by ∼2.4 folds CTR. grain (10.7; 7.9%) straw (28.9; 19.7%) FFP RDF, respectively, significant augmentation biofortification grains (11.8%) uptake (23.9%) RDF. also enhanced concentrations straws ∼4.0 2.7% respective increases 36.9 25.9% uptake. harvest index partial factor applied nutrients (NPK) magnitude their counterparts, i.e., In addition, AE-Zn, CRE-Zn, PE-Zn tune 119.6, 63.4, 34%, Overall, coupled hybrid assumes greater significance enhancing better Zn-biofortified besides use efficiencies combat widespread malnutrition acute deficiencies humans livestock Himalayas.
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ژورنال
عنوان ژورنال: Frontiers in Environmental Science
سال: 2022
ISSN: ['2296-665X']
DOI: https://doi.org/10.3389/fenvs.2022.869194