2 research outputs found

    Impact of Nano-Dap on Growth and Development of Cabbage

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    The current study, "Impact of nano-DAP on growth and development of cabbage," was carried out in 2021–2022 at the Department of Horticulture's Experimental Farm at A.A.U., Jorhat. RBD was used to set up the study. The treatments followed were T1 (Untreated control), T2 (100% RDF of N & K), T3 (100% RDF of 130:80:80 kg/ha), T4 (T2 + ST with nano-DAP @ 5 ml/ltr), T5 (T2 + ST@ 10 ml/ltr), T6 (T2 + 1 FS of nano-DAP @ 6 ml/ltr at 25-30 DAT), T7 (50 % P, 100% N & K + FS nano-DAP @ 2 ml/ltr at 25-30 DAT), T8 (25% P, 100% N & K + FS nano-DAP @ 4 ml/ltr), T9 (T2 + ST @ 5 ml/ ltr + FS nano-DAP @ 6 ml/ltr), T10 (25% P, 100% N & K + ST @ 5 ml/ ltr + FS nano-DAP  @ 4 ml/ltr), T11 (50% P, 100% N & K + ST @ 5 ml/ ltr + FS nano-DAP @ 2 ml/ltr), T12 (25% P, 50% N & 100% K + ST @ 5 ml/ ltr + FS  nano-DAP @ 4 ml/ltr) and T13 (50% P, 50% N & 100% K + ST @ 5 ml/ ltr + FS nano-DAP @ 2 ml/ltr). Investigation was done comparing the results of the nano-DAP treatments with the suggested fertilizer dosage. The results revealed that the maximum plant spread and number of non-wrapper leaves was observed in T3 (17.12 cm) and (7.67) at 30 DAT whereas in T3 (34.77 cm) and (16.83) at 60 DAT.The highest leaf area was recorded in T3 (107.56 sqcm) at 30 DAT and at 60 DAT (226.54 sqcm), although at 30 DAT, the maximum leaf fresh weight was recorded in T7 (4.40 g) although in T3 (12.46 g) at 60 DAT. The maximum number of days (88.30 days) to harvest was taken by T5. Thus, the investigation suggests that nano-DAP can reduce the amount of inorganic fertiliser applied while maintaining the potency of the crop

    Effect of Nano-DAP on Soil Characteristics and Qualities of Cabbage

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    An investigation was carried out at the Experimental Farm, Department of Horticulture, A.A.U., Jorhat during 2021-2022 to study the effect of nano-DAP on quality and soil characteristics of cabbage. The experiment was laid out in Randomised Block Design with thirteen treatments and three replications. The quality and soil characters showed significant differences among the treatments. The maximum compact heads (39.84) were obtained in T3 and among nano-DAP treatments (29.88) in T7. Observations recorded at harvesting stage showed highest number of wrapper and non-wrapper leaves at T12 (16.80) and T3 (31.93). Leaf chlorophyll content was maximum in T11 (1.36 mg/g fw), T5 (1.65 mg/g fw) and T7 (1.66 mg/g fw) at 30, 60 DAT & at harvest. N content in leaves was highest in T10 (3.62%), T3 attained the maximum P (0.46%) and K (3.95%). The maximum available NPK in soil was obtained in T9 (291.03 kg/ha), T13 (20.88 kg/ha) and T4 (95.04 kg/ha). Thus nano-DAP can be a good economic and eco-friendly alternative to conventional inorganic fertilizers, reducing the quantity of application while sustaining the quality of the produce
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