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Asian Journal of Scientific Research
Year: 2008  |  Volume: 1  |  Issue: 1  |  Page No.: 72 - 78

Light Interception and Productivity of Baby Corn as Influenced by Crop Geometry, Intercropping Systems and INM Practices

N. Thavaprakaash and K. Velayudham    

Abstract: Field experiments were conducted during kharif (June-September) 2002 and summer (March-May) 2003 seasons at Eastern Block farm, Tamil Nadu Agricultural University, Coimbatore. The experiments were laid out in split plot design with two factors in main plots viz., crop geometry (45x25 cm (S1) and 60x19 cm (S2)) and intercropping systems [(sole baby corn (C1), baby corn + Amaranthus (C2) and baby corn + green gram (C3)] and four INM practices [(100% recommended NPK (150:60:40 kg ha-1) alone (N1); 50% NPK + FYM + Azospirillum + phosphobacteria (N2); 50% NPK of baby corn + Poultry manure + Azospirillum + phosphobacteria (N3) and 50% NPK of baby corn + Goat manure + Azospirillum + phosphobacteria (N4)] were allotted in sub plots. The results revealed that barring at 25 DAS, S2 registered higher light interception than S1. Intercropped baby corn recorded greater light interception than sole baby corn at 25 DAS and 45 DAS. The results at later stages were comparable. The treatments N3 and N4 recorded higher light interception than N1 and N2.. Similarly, higher green cob yield and Baby corn Equivalent Yield (BEY) registered at S2 than S1. Under intercropping situation, baby corn yield was not varied but BEY was significantly higher in C2 and C3 than C1. Similar to light interception, baby corn yield and BEY were significantly higher with N3 and N4 than the rest. Strong positive and significant correlation between light interception and baby corn yield was noticed at all the stages except at 25 DAS during summer 2003 season. Whereas, the correlation between BEY and light interception was significant at 25 DAS during kharif 2002 and at 25 and 45 DAS during summer 2003 season.

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