Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/91429
Authors: Jehangir, Intikhab Aalum
Advisor: Khan, H U
Title: Response of Fodder Oats to Fertility Levels and Cutting Management at Different Sowing Dates
Language: en
Type: Thesis
Agrotags: Oat, sowing date, fertility levels, cutting management
Agronomy
Abstract: A field experiment was conducted at the Experimental Farm of Division of Agronomy, Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Shalimar, Srinagar during Rabi 2009-10 and 2010-11 on silty clay loam soil low in available nitrogen, medium in available phosphorus and potassium and sufficient in available calcium with neutral pH. The experiment was laid out in randomized block design replicated thrice with three sowing dates (September, 20, September, 30 and October, 10), three fertility levels (150 : 70 : 40, 125 : 60 : 30 and 100 : 50 : 20 kg N:P2O5:K2O ha-1) and two cutting levels (single cut and double cut). The study revealed that the crop sown on September, 20 recorded significantly higher plant height, number of tillers m-2, leaf area index and dry matter production upto 120 DAS. However, at harvest September, 30 and October, 10 sown crops at par with one another recorded significantly higher plant height, number of tillers m-2, leaf area index and dry matter production than September, 20 sown crop. October, 10 sown crop recorded significantly higher leaf stem ratio upto 150 DAS, however, at 180 DAS and at harvest leaf stem ratio remained similar under different sowing dates. Both total green and dry fodder yields (1st + 2nd cut) recorded with September, 30 and September, 20 sown crops were at par but significantly higher than October, 10 sown crop. Similar trend was also noticed in case of pooled data over two years. At first cutting September, 30 sown crop recorded higher nitrogen, phosphorus, potassium and calcium uptake whereas at second cutting October, 10 sown crop at par with September, 30 sown crop recorded significantly higher nitrogen, phosphorus and potassium uptake. Crude protein content was higher and crude fibre and ash content were lower in October, 10 sown crop compared to other sowing dates. The results also indicate that the plant height, number of tillers m-2, leaf area index, dry matter production, leaf stem ratio were significantly higher with fertility level 150 : 70 : 40 kg N:P2O5:K2O ha-1. The said treatment also recorded significantly higher total green and dry fodder yield (1st + 2nd cut) than other fertility levels. The fertility level 150 : 70 : 40 kg N:P2O5:K2O ha-1 recorded significantly higher nitrogen, phosphorus and potassium uptake while calcium uptake was significantly higher with fertility level 125 : 60 : 30 kg N:P2O5:K2O ha-1. Crude protein and ash content remained significantly higher at highest fertility level whereas crude fibre content was not significantly affected. The results also indicate that the single cut crop recorded significantly higher plant height, number of tillers m-2, leaf area index and dry matter production than double cut (excluding 1st cut) crop at different growth intervals, however, leaf stem ratio at 90, 120 and 150 DAS was significantly higher in double cut crop. The double cut crop recorded significantly higher total green and dry fodder yield (1st + 2nd cut) than single cut crop. Nitrogen, phosphorus, potassium and calcium uptake recorded under single cut crop was significantly higher than double cut crop (excluding 1st cut). The double cut crop recorded higher crude protein content but significantly lower crude fibre and ash content than single cut crop. The study revealed that the oats crop sown on September, 30 fertilized with 150 : 70 : 40 kg N:P2O5:K2O ha-1 and cut twice viz., December, 15 and 50 per cent flowering proved to be most economic in terms of benefit cost ratio, net and gross returns.
Description: PhD Thesis submitted to SKUAST Kashmir
Subject: Agronomy
Issue Date: 2012
Appears in Collections:Thesis

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