Performance of Seed Rate on Wheat Crop (Triticum aestivum L.) under Late Sown Condition

A study was conducted to investigate the “Performance of seed rate on wheat crop (Triticum aestivum L.) Under late Sown Condition.” This experiment was carried out during the Rabi seasons of 2018-2019 and 2019-2 020 at the Pili-Kothi Student Research Farm and in the Laboratory Department of Agronomy at T.D.P.G. College Jaunpur. Increasing seed rates demonstrated a significant influence on various growth parameters, including initial plant population, shoot numbers, plant height, and dry matter production, with the highest values consistently observed at 140 kg/ha. In terms of yield-contributing characteristics, the 140 kg/ha seed rate led to increased spike counts, longer spikes, more grains per spike, and heavier grains. Yield significantly favored the 140 kg/ha rate, averaging 4.25-4.21 Mg/ha, surpassing the 120 kg/ha rate (4.08-4.07 Mg/ha) and markedly exceeding the 100 kg/ha rate (3.85-3.84 Mg/ha). The straw and biological yields further echoed this trend, cementing the prominence of the 140 kg/ha seed rate in augmenting late-sown wheat productivity.

Growth, Yield and Economics of Wheat (Triticum aestivum L.) as Influenced by Different Seed Rates and Weed Control Methods

An experiment was conducted at Shradhay Bhagwati Singh Agriculture Research Farm (Hajipur), Chandra Bhanu Gupta krishi Snatakottar Mahavidyalaya, B.K.T., Lucknow (Uttar Pradesh) during the rabi season of 2021-22. The experiment consisted of 12 treatment combinations comprised of 3 seed rates and 4 weed management practices, tested in factorial randomize block design with three replications. The results indicated that different seed rates and weed management practices significantly influenced the growth, yield and nutrient uptake of wheat. The soil of experimental site was silty loam soils having medium organic carbon (0.70%) and nitrogen (270 kg ha-1), phosphorus (27 kg ha-1) and potassium (262 kg ha-1). Crop sown with seed rate, S3 (120 kg ha-1) recorded highest plant height, number of tillers m-2, leaf area index, dry matter accumulation, number of effective tillers, grain yield, straw yield, biological yield and nutrient uptake. However, higher number of grains spike-1, grain weight spike-1, length of spike and test weight was recorded with crop sown with 100 kg ha-1 seed rate. Weed free upto 60 DAS (W1) resulted in significantly higher growth and yield attributes and yields over rest of the weed control treatment. Post emergence spray of Clodinafop + Metsulfuron (60 + 4) g ha-1 recorded significantly higher values of all growth, yield attributes and yield over sulfosulfuron @ 25g a.i ha-1. Weed free upto 60 DAS had highest weed control efficiency followed by Clodinafop + Metsulfuron 60 + 4 g ha-1 (49.78%). However, the highest weed index was noticed in weedy check and lowest with herbicide mixture. The highest net returns (Rs. 69036) and B:C (1.73) were obtained with combination of 120 kg seed rate ha-1 + Clodinafop+ Metsulfuron @ 60g ha-1 +4g ha-1 (PoE) at 30-35 DAS.

Yield and Economics of Dual Purpose Barley as Influenced by Various Nitrogen Dose and Seed Rate

A field experiment was carried out during Rabi season 2019-20 at wheat and barley section research area of CCS Haryana Agricultural University, Hisar. The experiment was comprised of three nitrogen doses (N1-60, N2-75 and N3- 90 kg N/ha) as main plot treatments and four seed rates (S1- 87.5, S2- 100, S3- 112.5 and S4-125.0 kg/ha) as sub plot treatments. With four replications, experiment was laid out in split plot design. Based on the research investigation, it was found that nitrogen dose and seed rate both had significantly influenced the yield attributes and yield of dual purpose barley Among nitrogen doses, 90 kg/ha being at par with 75 kg/ha recorded significantly higher grain yield (4895 kg/ha), biological yield (12220 kg/ha) and green fodder yield (3706 kg/ha) which were 9.7, 12.0 and 15.1 percent higher than nitrogen dose of 60 kg/ha, respectively due to higher yield attributes i.e. number of effective tillers (85.08), number of grains per spike (44.15), number of spikelets per spike (23.10), spike length (7.47) and test weight (37.82) with nitrogen dose 90 kg/ha which were 8.5, 5.1, 7.9, 11.4 and 4.8 percent higher than nitrogen dose of 60 kg/ha, respectively. Among seed rates, 125.0 kg/ha closely followed by 112.5 kg/ha recorded significantly higher effective tillers (85.11), grain yield (4922 kg/ha), biological yield (12181 kg/ha), green fodder yield (3729 kg/ha) which were 8.0, 11.0, 11.8 and 16.7 per cent higher than seed rate of 87.5 kg/ha, respectively.