Nutrient Concentration and Its Uptake in Various Stages of Wheat (Triticum aestivum L.) as Influenced by Nitrogen, Phosphorus, and Potassium Fertilization. Issue 8 (28th April 2023)

• Record Type: Journal Article
• Authors: Rawal, Nabin; Pande, Keshab Raj; Shrestha, Renuka; Vista, Shree Prasad
• Is Part Of: Communications in soil science and plant analysis. Volume 54:Issue 8(2023)
• Page Start: 1151
• Page End: 1166
• Publication Date: 2023-04-28
• Subjects: Grain yield -- NPK rates -- NPK uptake -- nutrient concentration -- various stages of wheat; Soil science -- Periodicals; Plants -- Chemical analysis -- Periodicals; Agricultural chemistry -- Periodicals; 631.405
• DOI: 10.1080/00103624.2022.2138904
• Languages: English
• ISSNs: 0010-3624

Abstract

ABSTRACT: Effective management of nitrogen (N), phosphorus (P), and potassium (K) are crucial for increasing crop production and productivity as they are associated with a number of enzymatic and physiological activities in wheat ( Triticum aestivum L.). Field experiments were carried out during the winters of 2019˗˗20 and 2020˗˗21 to study the influence of varying levels of N, P, and K on crop performance, nutrient concentration, and uptake at various growth stages of wheat in mid-hill of Nepal. The study was conducted with factorial combinations of three N levels (100, 125, and 150 kg N ha −1 ), three P levels (25, 50, and 75 kg P2 O5 ha −1 ) and three K levels (25, 50, and 75 kg K2 O ha −1 ) in a randomized complete block design with three replications. Increasing N and K rates significantly (p < .05) increased total dry matter, grain yield, nutrient concentrations and uptakes in wheat. Pooled means showed significantly higher grain yields of 6.3 t ha −1 were obtained with N @ 125 kg ha −1, and K2 O @ 50 kg ha −1 than lower rates. At maturity, average concentrations of N, P, and K in grain were 15.5, 3.6, and 5.8 g kg −1, respectively, and 5.4, 0.9, and 10.9 g kg −1 in straw, respectively, depending on the rate of NPK applied. N and P were mostly accumulated in wheat grain, whereas K was found higher in wheat straw than in grain. The nutrient concentration values of grain and straw can be used as a reference for determining nutrient removal from soil using a yield-based technique in wheat.