Publication: Effect of Nano-Phosphorus Formulation on Growth, Yield and Nutritional Quality of Wheat under Semi-Arid Climate
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Date
2023
Journal Title
Agronomy
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
Appropriate phosphorus (P) management techniques increase yield and nutritional properties while minimizing environmental concerns. The widespread use of nano-fertilizers (NFs) in agriculture endangers soil and plants. It is vital to research the behavior of nano-phosphors (nano-P) on plant growth and quality, as well as their technique of interaction with soil properties in order to obtain key ecosystem benefits. With this in mind, a field experiment was conducted using wheat as a test crop to explore the impact of nano phosphorus (nano-P) on soil. The study�s goal was to examine how the foliar application of nano-P to wheat affects its growth, yield and nutrient concentration. Treatments consisted of: T1: 100% NPK (120:137:72 kg N:P2O5:K2O ha?1) by RDF (recommended dose of fertilizer); T2: 100% NPK by RDF + 2 foliar sprays of nano-P @ 494.21 mL ha?1; T3: 100% NK + 0% P (no foliar); T4: 100% NK + 75% P + 2 foliar sprays of nano-P @ 494.21 mL ha?1; T5: 100% NK + 50% P + 2 foliar sprays of nano-P @ 494.21 mL ha?1;T6: 100% NK + 0% P + 2 foliar sprays of nano-P @ 494.21 mL ha?1; T7: 100% NPK by RDF + 1 foliar spray of nano-P @ 494.21 mL ha?1; T8: 100% NK + 75% P + 1 foliar spray of nano-P @ 494.21 mL ha?1; T9: 100% NPK + 1 foliar spray of nano-P @ 494.21 mL ha?1; T10-100% NK + 75% P + 1 foliar spray of nano-P @ 494.21 mL ha?1. According to the findings, applying 100% NK + 75% P + 2 foliar applications of nano-P at the tillering and panicle initiation stages increased yield over 100% RDF by 37.1%. Additionally, the highest micronutrient concentration (Zn (36.4 mg kg?1), Cu (21.2 mg kg?1), Mn (22.9 mg kg?1) and Fe (61.1 mg kg?1)) in grain were noticed in T3 (100% NK + 0% P no foliar spray of nano-P) treatment, which was superior to T1 (100% NPK). Furthermore, foliar application of nano-P fertilizer in combination with different levels of diammonium phosphate (DAP) slightly increased the amount of N, P and K, as well as micronutrients in post-harvest soil. In summary, the use of 100% NK + 75% + 2 foliar applications of nano-P saved 25% recommendation dose P if supplied as nano-P as a form of phosphorus, and can be a suitable substitute for DAP, especially in smart agriculture, as it possibly reduces P leaching into groundwater, while maintaining or increasing wheat crop yield over the 100% RDF. � 2023 by the authors.
Description
Keywords
diammonium phosphate, foliar application, micronutrients, nano-phosphorus, wheat