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A scientific field experiment was conducted during 2017, 2018 and 2019 in kharif season at R.A.R.S, Nandyal, Acharya N.G. Ranga Agricultural University to study Efficacy of Neem coated urea through nitrogen use efficiency methods in Bt cotton. The experiment consisting of seven nitrogen use efficiency treatments with combination of three nitrogen doses viz: No nitrogen, 75% recommended dose of nitrogen, 100% recommended dose of nitrogen, 2 methods of nitrogen application viz: band application and split application and 4 stages of nitrogen top dressing viz: basal, squaring, flowering and boll development stages along with foliar application of 1% urea at squaring, flowering, boll development stage with RBD design and replicated thrice. The results indicated that pooled seed cotton yield (2813 kg/ha), nutrient uptake and cotton economics were higher with spot application 75% recommended dose of nitrogen with 4 split doses of nitrogen along with foliar application of 1% urea at squaring, flowering and boll developmental stage and was on par with spot application of 75% recommended dose of nitrogen with 4 split doses of nitrogen, foliar application of 1% urea at squaring, flowering and boll developmental stage along with incorporation of fodder cowpea before flowering (2681 kg/ ha). Lower seed cotton yield (1637 kg/ ha) was recorded with no nitrogen treatment.

A field experiment was conducted for two consecutive rainy seasons during 2016 and 2017 at Regional Agricultural Research Station, Nandyal, Kurnool district of Andhra Pradesh under All India Coordinated Research Project on Sunflower to study the response of rainfed sunflower to varying planting geometry and fertilizer levels under different land configuration. The experiment was laid out in a split plot design with four main plot treatments viz., M1 - Flat bed sowing 60 cm x 30 cm, M2- Ridge and furrow sowing 60 cm x 30 cm, M3 - Flat bed with paired row sowing 45 cm x 30 cm (90/40 cm) and M4 - Broad bed and furrow with paired row sowing 45 cm x 30 cm and three sub-plot treatments viz., S1 - 75 % RDF, S2 - 100 % RDF (60:30:30 N, P2O5 and K2O kg/ha) and S3 - 125% RDF and replicated thrice. The results indicated that moisture use efficiency was found highest in broad bed and furrow paired row sowing (8.0 and 7.1 kg/ha-mm in 2016 and 2017, respectively) followed by ridges and furrowat 60 cm x 30 cm sowing (6.8 and 6.2 kg/ha-mm in 2016 and 2017, respectively). Highest seed yield (1632 kg/ha) was recorded with broad bed and furrow paired row 45 cm x 30 cm treatment followed by ridge and furrow 60 cm x 30 cm treatment (1398 kg/ha), which were superior to flat bed paired row 45 cm x 30 cm (1155 kg/ha). Broad bed and furrow paired row sowing at 45 cm x 30 cm recorded higher net returns (` 21450/-) and B: C ratio (1.82) followed by ridges and furrow sowing at 60 cm x 30 cm.

NDLH 2051-1 has a mean seed cotton yield potential of 1590 kg ha-1 and has been singled out for commercial cultivation in the south and central zones of India by the Regional Agricultural Research Station, Nandyal, India. This cultivar represents an essential contribution to sustainable cotton production in India.