Effect of Precision Nitrogen Management through LCC on Nutrient Content and Uptake of Maize (Zea mays L.) under Temperate Conditions of Kashmir
Suhail Fayaz *
Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, FoA, Wadura, Sopore 193201, India.
Raihana Habib Kanth
Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, FoA, Wadura, Sopore 193201, India.
Tauseef Ahmad Bhat
Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, FoA, Wadura, Sopore 193201, India.
M. Anwar Bhat
Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, FoA, Wadura, Sopore 193201, India.
Bashir Ahmad Alie
Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, FoA, Wadura, Sopore 193201, India.
Zahoor Ahmad Dar
Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, FoA, Wadura, Sopore 193201, India.
Zaffar Mehdi
Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, FoA, Wadura, Sopore 193201, India.
Showkat Maqbool
Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, FoA, Wadura, Sopore 193201, India.
Khalid Rasool
Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, FoA, Wadura, Sopore 193201, India.
*Author to whom correspondence should be addressed.
Abstract
Field experiment was conducted at Faculty of Agriculture, SKUAST-Kashmir, Wadura, Jammu and Kashmir during kharif seasons of 2019 and 2020 to assess the effect of precision nitrogen management through LCC on nutrient content and uptake of maize (Zea mays L.) under temperate conditions of Kashmir. The experiment comprised of three maize hybrids (SMH-2, Vivek-45 and Kanchan-517) assigned to main plots and seven Precision N management viz. nitrogen splits @ 20 and 30 kg N ha-1 managed through LCC (LCC scores of 3, 4 and 5), recommended nitrogen level and control in subplots. The treatments were replicated thrice in a split plot design. The results revealed that LCC ≤ 5 @ 30 kg N ha-1 recorded highest dry matter accumulation and periodic N uptake at all the stages of growth and highest P and K uptake by grain and straw at harvest. Further, highest dry matter accumulation and uptake of NPK was recorded in cultivar SMH-2 as compared to Vivek-45 and Kanchan-517 during 2019 and 2020 respectively. LCC based N application proved effective in increasing dry matter and nutrient content of maize hybrids.
Keywords: Precision, LCC, nitrogen, maize and nutrient