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भा.कृ.अनु.प. - अखिल भारतीय समन्वित अनुसंधान परियोजना–कपास

ICAR – All India Coordinated Research Project on Cotton

(An ISO 9001:2015 Certified Institute)

AGRONOMY TRIALS

Agronomy Trial

Trials conducted under Agronomy, Physiology and Biochemistry during 2022-23

Significant Achievements: 2022-23

Optimization of agronomic requirements is the pre requisite for releasing of promising genotypes. Hence, Spacing and Nitrogen requirement of PBD 88 (G. hirsutum) in North Zone, GJHV 566, CNH 18529 and TVH007 (G. hirsutum), NDLA 3116-3, AKA 2013-8, and PA 873 (G. arboreum) and DDCC1901 (G. arboreum colour) varieties in central Zone and CPD 1902, CCH 19-2, DHCC 1901, CCH 19-1, NDLH 2056-4 and CCH 19-2 (G. hirsutum), DB 1901 (G. barbadense), NDLA 3104-4 and DDCC 1902 (G arboreum) were standardized in south zone.At Chamrajnagar, ELS Bt cotton hybrid (DCH 32 Bt) at 75% of recommended population (33,100/ha) and application of 125% of recommended nitrogen (187.5 kg NPK/ha) was found to be optimumOrganic nutrient management package comprising of seed treatment, soil application of recommended bio fertilizers, foliar application of Pink Pigmented Facultative Methylotrops (PPFM) at flowering, soil application of Neem cake @ 250 kg/ha and raising and incorporation of Sunnhemp/ fodder cowpea between rows registered significantly higher seed cotton yield at Surat (1,129 kg ha -1 ), Srivilliputhur (1,268 Kg/ha) and Coimbatore (1,268 kg/ha). In the same package, substituting raising and incorporation of Sunnhemp / fodder cowpea with intercropping of green gram/black gram/ ground nut/soybean registered significantly higher seed cotton yield at Nandyal (1926 kg/ha) and Junagadh (1,552 kg/ha).Conservation agriculture trial of first year results of North zone revealed that 100% wheat residue incorporation by rotavator followed by sowing of cotton in kharif and 100% cotton residue incorporation after picking + sowing of wheat crop through Super seeder in one go in rabi observed significantly higher seed cotton yield at Faridkot (2,645 kg/ha) and Bathinda (3,178 kg/ha) in cotton – wheat rotation in North zone. Permanent bed system + Zero tillage + 100 % residue management registered higher seed cotton equivalent yield of 3,893 and 3,132 kg/ha at Rahuri and Junagadh respectively by following cotton- wheat and cotton-sorghum respectively in fifth year. which These were 25.8 and 4.8 higher respectively as compared to conventional methodsIn Chamrajnagar and Srivilliputhur, conventional tillage with no residue management was at par with permanent bed system with zero tillage and 100 % residue management in cotton – sorghum and cotton- maize cropping system respectivelyCost of cultivation per quintal on the basis of Cost C3 was arrived as Rs. 7,045 for irrigated Bt Hybrid at Faridkot, Rs. 4,958 for irrigated Bt Hybrid at Hisar and Rs. 4,959 ha -1 for irrigated G arboreum at Bathinda. It was Rs. 5,781 for rainfed Bt hybrid at Akola, Rs. 5689 for rainfed non Bt hybrid at Bhawanipatna, Rs. 6,459 for rainfed Bt hybrid at Nanded, Rs. 5,637 for irrigated Bt hybrid at Surat and Rs. 4,447 ha -1 for irrigated Bt hybrid at Khandwa.Cost of cultivation per quintal on the basis of Cost C3 was arrived as Rs. 4,181 for rainfed Bt hybrid at Nandyal, Rs. 8,811Bt hybrid- rainfed at LAM , Rs. 6,691 for rainfed Bt hybrid (HxB) at Chamrajnagar , Rs. 4,930 for irrigated Bt hybrid at Raichur and Rs. 4,567 ha -1 for irrigated Bt hybrid in CoimbatoreIn Bt variety trial, CICR 23 Bt with 90×30 cm with 150% RDN under rainfed condition at Dharwad registered higher seed cotton (1,659 kg/ha) yield than ruling Bt hybrid (1501 kg/ha),In multitier cropping system’s trial of Central zone, intercrops were planted between paired row of Bt cotton. Intercropping of two rows of green gram at Akola , two rows of Soybean at Junagadh, Rahuri, and Khandwa, two rows of Indian bean at Surat and red gram (1/6) at Nanded were found economically promising. The relative economic efficiency was 29.6, 17.11, 16.6, 26.7, 35.96 and 6.74 per cent higher than sole Bt hybrid respectively.In South Zone, it was found that Multitier cropping systems with two rows of green gram at Dharwad, two rows of cluster bean at Srivilliputhur, two rows of black gram at Chamrajnagar , two rows of soybean at Raichur and one rows of red gram and one row of foxtail millet at Guntur were found economically promising. The relative economic efficiency was 32.1, 89.0, 38.7, 2.9, 1.04 and 33.8 per cent higher than sole Bt hybrid respectively.In Khandwa, land configuration of Ridges & Furrow followed by Salicylic acid @100ppm single spray after depletion of 75 % soil moisture was promising This gave 62.3 % higher seed cotton yield compared to control. Adoption of Ridges & Furrow with Glycine Betaine @100ppm spray gave 68.4% higher seed cotton yield as compared to controlDrought management strategy of Broad Bed Furrow with Glycine Betaine @100ppm spray after depletion of 75 % soil moisture is promising at Perambalur, Dharwad and Nanded which was arrived with higher seed cotton yield of 46.6, 13.0 and 9.3 per cent as compared to control respectively. However, adoption of Broad Bed Furrow with Salicylic acid @100ppm spray gave 30.5 per cent higher seed cotton yield as compared to control at Akola observed moisture stress at squaring to flowering stageSowing on Ridges and & Furrow followed by Salicylic acid @ 0.5mM spray after water logging found 73.1 and 61.6 per cent higher seed cotton yield as compared to control respectively at Junagadh and SuratIn canopy management trial, Mepiquat chloride @ 45ppm at square initiation and 15 days after first spray and 15 days after second spray registered 25.6 % seed cotton yield Dharwad. Mepiquat chloride @ 45ppm at square initiation and 15 days after first spray + Detopping on 20 th node recorded 18.9 per cent higher seed cotton yield at Hisar