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Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur

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Subject: Soil Science and Agricultural Chemistry × Author: Aherwar, Hemlata × End date: 2016 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of Different Levels of Zn on Yield and Quality of Soybean {Glycine max (L.)}
    (JNKVV, 2013) Aherwar, Hemlata; Kulhare, P.S.
    ABSTRACT The present study “Effect of different levels of Zn on yield and quality of soybean {Glycine max (L.)}.” during Kharif season of years 2011-12 was carried out in collaboration with All India Co-ordinated Research Project on Micro, secondary nutrients and pollutant elements in soils and plants. A field experiment was conducted at Research Farm of JNKVV, Jabalpur during Kharif 2012-13. To study the effect of Zn levels (0, 2.5, 5.0, 7.5 and 10.0 kg Zn ha-1) on growth and yield parameter of soybean, Zn content and uptake at various growth stages, yield, protein and oil content of soybean. The Zn treatments replicated five times in a randomized block design. The soybean (JS97-52) seed were sown @ 80 kg ha-1 on 13.7.12 with basal dose of 20-80-20 N, P2O5 and K2O, respectively. The Zn doses as per treatments were applied at the time of sowing. The application of increasing levels of Zn in general significantly increased plant height, number of leaves per plant, dry matter weight per plant, Zn content and uptake at different growth stages of soybean and soybean yield over control. However, the plant height at 15 DAS, Zn content in grain, stover and their Zn uptake by soybean, oil content and grain yield significantly increased with 5.0, 7.5 and 10 kg Zn ha-1 over control. The significantly higher plant height was observed with 7.5 and 10.0 kg Zn ha-1 over control at 45 DAS. Whereas the plant height at 10.0 kg Zn ha-1 was found significant over control as 90 DAS. The increasing levels of Zn significantly increased the number of leaves over control at 15, 30, 45 and 60 DAS except with 2.5 kg Zn ha-1 at 15 DAS. However, the number of leaves with 7.5 and 10.0 kg Zn ha-1 were found significantly superior to 5.0 kg Zn ha-1 at 15 DAS. However, 10.0 kg Zn ha-1 was found significantly superior to 2.5 and 5.0 kg Zn ha-1 for number of leaves at 90 DAS. The number of pods per plant with 10.0 kg Zn ha-1 was found significantly superior to 2.5 kg Zn ha-1 at 60 DAS. The test weight of grain was found significantly at 7.5 and 10 kg Zn ha-1 over control. The Zn content in plant at 15 and 30 DAS and soil organic carbon with 5.0 and 7.5 kg Zn ha-1 were found significantly superior to 2.5 kg Zn ha-1. The Zn uptake at 30, 45 and 90 DAS with 7.5 kg Zn ha-1 was found significantly superior to 2.5 kg Zn ha-1 but it was found at par with 5.0 kg Zn ha-1. Crude protein content in grain was found significantly higher with 5.0 and 7.5 kg Zn ha-1 over control but it decreased significantly with 10.0 kg Zn ha-1 over 7.5 kg Zn ha-1. The oil content with 10.0 kg Zn ha-1 was found significantly higher than that at 5 kg Zn ha-1. The yard stick value of soybean significantly increased with 5 kg Zn ha-1 over control but decreased significantly with 10.0 kg Zn ha-1 over 5.0 kg Zn ha-1. However soil O.C with 10.0 kg Zn ha-1 was found significantly superior to 5.0 or 7.5 kg Zn ha-1. The available Zn in soil successively and significantly increased with increasing levels of Zn.