EFFECT OF FERTLIZER APPLICATION AND CUTTING SCHEDULE ON
GROWTH AND YIELD PARAMETERS IN OAT (AVENA SATIVA L.)
PREETI MALIK, B. S. DUHAN*1 AND L. K. MIDHA
Department of Agronomy
CCS Haryana Agricultural University,
Hisar-125 004 (Haryana), India
*(e-mail : dr.bsduhan@gmail.com)
(Received : 06 December 2014; Accepted : 10 February 2015)
SUMMARY
Field experiment was conducted to study the effect of nitrogen, phosphorus and cutting
management on the yield and nutrient uptake by oat. Results obtained from this experiment indicated that cutting management had non-significant effect on tillering. However, application of N and P significantly increased the number of tillers from 97.2 to 118.3 per metre length. Maximum plant height was recorded when oat was cut at 70 DAS (65.9) followed by cut at 60 DAS (53.8) and then cut at 50 DAS (45.9). Plant height increased significantly from 49.8 to 60.1 with the increase in each successive dose of N and P up to the level of N120+P60. Highest green fodder and dry matter accumulation were recorded when oat was cut at 70 DAS (172.6 and 34.4q/ha) and least when oat was cut at 50 DAS (140.2 and 22.8q/ha). The lowest (106.0 and 20.8q/ha) green fodder and dry matter accumulation were found under control and the highest (518.32 and 93.80 g/m) green fodder and dry matter accumulation were found under treatment 120 kg N+60 kg P2O5/ha. Number of panicles/m and spikelets/panicle were found to be non-significant under various cutting treatments. Lowest number of panicles/m row length (61.79) was recorded under control and it
increased significantly to 75.00 with (F3) N120+ P60 over all other treatments. Seeds per panicle were found highest (66.0) under first cut and lowest at third cut for fodder 62.20 grains/panicle. Application of N and P significantly increased the grains per panicle from 60.60 to 66.90 with (F3) N120+P60/ha. The test weight of oat was found highest (39.23) with the 60 DAS and it was significantly higher over 50 and 70 DAS. However, 50 and 70 DAS were found at par. The highest test weight (39.83) was recorded with the treatment (F3) N120+P60/ha followed by N80+ P40 (38.59), then N40+ P20, (35.16) and least by control (30.88).
Key words: Cutting management, fertility levels, tillers, plant height, panicles, spikelets, test weight