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Subject: Agronomy × Author: Pal, Vajinder × End date: 2012 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
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    RESPONSE OF SUMMER MAIZE FODDER TO NITROGEN AND FARMYARD MANURE
    (Punjab Agricultural University, Ludhiana, 2012) Pal, Vajinder; Sharma, P K
    A field experiment entitled, “Response of summer Maize fodder to Nitrogen and Farmyard manure” was conducted at the Research Farm of the Department of Agronomy, Punjab Agricultural University, Ludhiana during summer season of 2011. The soil was loamy sand in texture, slightly alkaline in soil reaction (8.0), low in organic carbon (0.33%) and available N (130 kg/ha), high in available P (28.5 kg/ha) and medium in available K (240 kg/ha). The experiment comprising of twelve treatment combinations viz; three main plots (farmyard manure at 0, 12.5 and 25 t/ha) and four nitrogen levels in sub plots (0, 40, 80 and 120 kg/ha) was laid out in split plot design with four replications. Green fodder yield of 369 q/ha was obtained with the application of 25 t of farm yard manure per hectare which was significantly higher than 344 and 293 q/ha with 12.5 t/ha and control plots, respectively. Dry matter yield, plant height, LAI and leaf stem ratio obtained with F25 and F12.5 were significantly higher than control, but statistically at par with one another. Quality parameters such as moisture content, crude protein, crude fibre, IVDMD and ash content also improved by F25 over F12.5 and control. Application of F25 produced fodder with highest micronutrient content and improved the available nitrogen in the soil after harvest, over lower levels. Nitrogen at 120 kg/ha gave significantly higher green fodder yield (406.28 q/ha) over lower levels. Dry matter yield, plant height, LAI and leaf stem ratio increased with increasing levels of nitrogen. Quality parameters such as moisture content, crude protein, crude fibre, ash content and IVDMD improved with increasing level on nitrogen up to the highest level (N120). Micronutrient content of the crop though decreased with increasing nitrogen levels, but the micronutrient yield increased. Though dry matter yield obtained with the application of nitrogen at 120 kg/ha alone but significantly higher than all the FYM levels without N, but poor in quality. Application of 80 kg N/ha in conjunction with F12.5 produced equivalent green fodder with 120 kg N/ha alone but better in quality. Crude protein yield, TDN and micronutrients yield was also observed to be higher with higher quantity of FYM and nitrogen levels.