TY - JOUR
T1 - Estimation of yield, phenology and agro-meteorological indices of Quality Protein Maize (Zea mays L.) under different nutrient omissions in temperate ecology of Kashmir
AU - Jamsheed, Bilkees
AU - Bhat, Tauseef Ahmad
AU - Saad, A. A.
AU - Nazir, Aijaz
AU - Fayaz, Suhail
AU - Eldin, Sayed M.
AU - Jan, Bisma
AU - Kounsar, Hadiya
AU - Yaqoob, Munazah
AU - Mir, Amir Hussan
AU - Wani, Fehim Jeelani
AU - Mohammad Said Al-Tawaha, Abdel Rahman
AU - Ali, Iftikhar
AU - Aljarba, Nada H.
AU - Mohamed Al–Hazani, Tahani
AU - Verma, Nisha
N1 - Publisher Copyright:
© 2023
PY - 2023/10
Y1 - 2023/10
N2 - The major yield governing factors especially under rainfed ecosystem are the agro-meteorological indices. Hence, an experiment was conducted in 2021 kharif season to examine the impact of nutrient omission on phenology, yield and agro-meteorological indices of Quality Protein Maize (QPM) under the North Western Himalayas of India at the Agronomy farm of FoA (Faculty of Agriculture), Wadoora, Sopore, SKUAST-Kashmir. Eight treatments were used in the experiment viz. (T1-Absolute control, T2-N120P75K40, T3-N120P75K40Zn5S10, T4-P75K40Zn5S10 (-N), T5-N120K40Zn5S10 (-P), T6-N120P75Zn5S10 (-K), T7-N120P75K40S10 (-Zn) and T8-N120P75K40Zn5 (-S)), using a randomized complete block design with three replications. Results demonstrated that recommended dose of fertilizer plus zinc and sulphur (T3-N120P75K40Zn5S10) noted higher grain (9.78 t ha−1) and biological (22.05 t ha−1) yield, a longer period of time to reach various phonological stages thereby achieved maximum heat units or growing degree days (GDD), heliothermal units (HTU), photo-thermal units (PTU), pheno-thermal index (PTI) and heat use efficiency (HUE). Nitrogen was the most limiting nutrient thereby accumulating least heat units and HUE. The agrometeorological indices could be therefore helpful in predicting the phenology and maize yield. The outcomes of the experiment showed that using the recommended fertilizer dosage plus zinc and sulphur in QPM should be adopted to attain higher yield under the North Western Himalayas of India, However, additional agro-ecological study is required to further validate the findings.
AB - The major yield governing factors especially under rainfed ecosystem are the agro-meteorological indices. Hence, an experiment was conducted in 2021 kharif season to examine the impact of nutrient omission on phenology, yield and agro-meteorological indices of Quality Protein Maize (QPM) under the North Western Himalayas of India at the Agronomy farm of FoA (Faculty of Agriculture), Wadoora, Sopore, SKUAST-Kashmir. Eight treatments were used in the experiment viz. (T1-Absolute control, T2-N120P75K40, T3-N120P75K40Zn5S10, T4-P75K40Zn5S10 (-N), T5-N120K40Zn5S10 (-P), T6-N120P75Zn5S10 (-K), T7-N120P75K40S10 (-Zn) and T8-N120P75K40Zn5 (-S)), using a randomized complete block design with three replications. Results demonstrated that recommended dose of fertilizer plus zinc and sulphur (T3-N120P75K40Zn5S10) noted higher grain (9.78 t ha−1) and biological (22.05 t ha−1) yield, a longer period of time to reach various phonological stages thereby achieved maximum heat units or growing degree days (GDD), heliothermal units (HTU), photo-thermal units (PTU), pheno-thermal index (PTI) and heat use efficiency (HUE). Nitrogen was the most limiting nutrient thereby accumulating least heat units and HUE. The agrometeorological indices could be therefore helpful in predicting the phenology and maize yield. The outcomes of the experiment showed that using the recommended fertilizer dosage plus zinc and sulphur in QPM should be adopted to attain higher yield under the North Western Himalayas of India, However, additional agro-ecological study is required to further validate the findings.
KW - Agro-meteorological indices
KW - GDD
KW - Phenology
KW - Phenothermal index
KW - Yield
UR - https://www.scopus.com/pages/publications/85166340979
U2 - 10.1016/j.jksus.2023.102808
DO - 10.1016/j.jksus.2023.102808
M3 - Article
AN - SCOPUS:85166340979
SN - 1018-3647
VL - 35
JO - Journal of King Saud University - Science
JF - Journal of King Saud University - Science
IS - 7
M1 - 102808
ER -