Yield and yield components of wheat as affected by different seed rates and nitrogen levels

Wajid Ali Shah

doi:10.19045/bspab.2016.50070

Abstract

The present study was designed to find out the effect of different seed rates and nitrogen levels on wheat. The experiment was laid out in Split plot arrangement with 4 replications. The plot size of 4 x 1.8 m 2 was maintained. Prior to sowing Wheat variety Lakki- J03 was sown on a well prepared seed bed on 2 nd week of Nov. in 2003. at Agriculture Research Station Serai Nourang, Bannu, Khyber Pakhtunkhwa - Pakistan. Adequate plant protection measures were made during the crop growing period. Keeping in view the soil condition and physical appearance of crop, five numbers of irrigations were applied to all the plots uniformly. Observations on number of tillers m -2 , spikes m -2 , number of grains spike -1 , 1000 grain weight (g), biological yield (kg ha -1 ), grains yield (kg ha -1 ) and economic analysis were recorded. Five seed rates (S1 = 60 kg ha -1 , S2 = 80 kg ha -1 , S3 = 100 kg ha -1 , S4 = 120 kg ha -1 and S5 = 140 kg ha -1 ) and five nitrogen doses (N0 = Control, N1 = 40 kg ha -1 , N2 = 80 kg ha -1 , N3 = 120 kg ha -1 and N5 = 140 kg ha -1 ) were applied during experiment. Analysis of the data recorded from the irrigation treatments showed that maximum (334.85) tillers m -2 , spikes m -2 (326.00), grains spike -1 (60.80), 1000-grain weight (41.91 g), grain yield (3957.64 kg ha -1 ), biological yield (10172.40 kg ha -1 ), net income (Rs. 50225.00), BCR (4.28 %) and MRR % (428.27) was noted from the plots which were seeded with 120 kg ha -1 . Statistical analysis of the data also revealed that maximum (348.00) tillers m 2 , spikes m -2 (332.95), grains spike -1 (63.90), 1000-grain weight (42.19 g), grain yield (4145.14 kg ha -1 ), biological yield (10579.75 kg ha -1 ), net income (Rs. 52831.00), BCR (4.46 %) and MRR % (446.21) was noted from the plots fertilized with 120 kg N ha -1 . In case of interaction between seed rate and nitrogen, it was observed that maximum (380.75) tillers m -2 , spikes m -2 (372.25), grains spike -1 (68.25), 1000-grain weight (44.20 g), grain yield (4663.20 kg ha -1 ), biological yield (11270.00 kg ha -1 ), net income (Rs. 60179.00), BCR (4.88 %) and MRR % (488.25) was noted from the plots seeded with 120 kg ha -1 seed rate and fertilized with 120 kg N ha -1 .. From the above results, it is concluded that to get more yield and economic profit, for wheat crop use 120 kg ha -1 seed rate and fertilized with 120 kg N ha -1 .

Highlights

Was produced by the plots seeded with 120 kg ha-1
2, leaf area index, grains spike-1, 1000-grain weight, grain yield and biological yield was produced by plots received seed at the rate of 120 kg ha-1 and nitrogen with 120 kg ha-1, while maximum leaf area index was recorded from the plots seeded with 120 kg ha-1 and fertilized with 80 kg N ha-1
Tillers m-2 Data presented in table 1 indicated that tillers m-2 of wheat significantly affected by seed rates and nitrogen levels

Summary

Introduction

Was produced by the plots seeded with 120 kg ha-1. nitrogen fertilization at the rate of 120 kg ha-1 resulted maximum (348) tillers m-2, leaf area index (4.42) grains spike-1 (63), 1000-grain weight (42.19 g), grain yield (4145 kg ha-1) and biological yield (10579 kg ha-1). 2, leaf area index, grains spike-1, 1000-grain weight, grain yield and biological yield was produced by plots received seed at the rate of 120 kg ha-1 and nitrogen with 120 kg ha-1, while maximum leaf area index was recorded from the plots seeded with 120 kg ha-1 and fertilized with 80 kg N ha-1. Results and discussion Tillers m-2 Data presented in table 1 indicated that tillers m-2 of wheat significantly affected by seed rates and nitrogen levels.

Results

Conclusion