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Harendra Kumar ¹, U. Kotoky ², A. Devee ³

Affiliations
1 Rural Agriculture Extension, Khurud, Dhamtari C.G., IN
2 Pomology Section, Assam Agricultural University, jorhat Assam, IN
3 Agriculturer Entomology, Assam Agricultural University, Jorhat Assam, IN

Abstract

The study was conducted in the experimental farm, Department of Horticulture, Assam Agricultural University, Jorhat, during 2009-2010 to analyze the effect of drip fertigation on growth of guava (Psidium guajava L.). Experiment was laid out in Split - Split - Plot Design with three replications comprised of twenty four treatments thus total 24X3=72 plots each having 1 plant with the spacing of 6 m x 6 m. Study concluded that the growth parameters were significantly influenced by varieties, drip level and fertigation level. The increments in plant height (28.00cm), plant girth (3.34 cm) were observed in T17 (V2D2F1). The highest plant canopy (38.86 cm) was recorded in T5 (V1D2F1). Considering the positive effect on growth, T17 (V2D2F1) is considered to be the best, but from economic point of view T19 (V2D2F3) is preferable.

Keywords

Drip Fertigation, Growth Parameters, Guava

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R. S. Singh ¹, Harendra Kumar ¹

Affiliations
1 Department of Entomology, C.S. Azad University of Agriculture & Technology, Kanpur (U.P.), IN

Abstract

An experiment was laid out in the field at Oilseed Research Farm Kalyanpur, Kanpur during rabi 2002-03 to findout the effect of different nutrients and cropping sequences on the incidence of Bihar hairy catepiller (Spilosoma obliqua Walk.). Mustard sown after fallow received to less infestation (1.61 larvae per 10 plants) of S. obliqua and gave maximum yield (i.e. 32.69q/ha). The crop applied with 112.50 kg N/ha. 56.25 kg P/ha. 56.25 kg K/ha + 2 tonne FYM/ha + 40 kg sulphur/ha + 25 kg ZnSO₄/ha + 1 kg boron/ha + seed treatment by Azotobacter @ 10 gm/kg of seed have considered effective in checking the larval population (1.66 larvae per 10 plants) of S. obliqua and provided yield (34.03 q/ha). Mustard sown after faollow with 150 kg N/ha. 75 kg P/ha. 75 kg P/ha. 75 kg P/ha. + 2 tonnes FYM/ha + 40 kg. sulphur/ha + 25 ZnSO₁/ha + 1 kg boron/ha or 150 kg N/ha. 75 kg P/ha. 75 kg K/ha. + 2 tonne FYM/ha + 10 kg sulphur/ha + 25 kg ZnSO₄/ha + 1 kg boron/ha + seed treatment by Azotobacter @ 10 gm/ha of seed or 112.50 kg N/ha. 56.25 kg P/ha 56.25 kg K/ha + 2 tonnes FYM/ha + 40 kg sulphur/ha + 25 kg ZnSO₄/ha + 1 kg boron/ha attracted minimum population (1.00 larvae per 10 plants in each plots) of Spilasoma abliqua Walk.

Keywords

NPK, FYM, Sulphur, ZnSO₄, Boron, Azotobacter, Spilosoma obliqua Walk., Mustard.

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