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Subject: Agronomy × End date: 2018 × Start date: 2000 × Type: Thesis × Thesis Type: M.Sc ×
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Now showing 1 - 9 of 46
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    ThesisItemOpen Access
    Productivity and Quality of Turmeric (Curcuma Longa L.) As Influenced By Method of Planting and Spacing
    (College of Agriculture, Punjab Agricultural University, Ludhiana, 2005) Kumar Malik, Akshay; Saini, SS
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    ThesisItemOpen Access
    competitive ability of wheat (Triticum aestivum L.) with phalaris minor Retz. And broad leaf weeds in relation tc rate and method of nitrogen application
    (Department of Agronomy, College of Agriculture PAU, Ludhiana, 2001) Kaur, Amandeep; Walia, U. S
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    ThesisItemOpen Access
    Productivity of soybean [Glycine max (L.) Merrill] as influenced by drip irrigation, fertigation and mulching
    (Punjab Agricultural University, Ludhiana, 2018) Ramanpreet Kaur; Angrej Singh
    The present study entitled, “Productivity of soybean [Glycine max (l.) Merill] as influenced by drip irrigation, fertigation and mulching” was conducted during the Kharif season of 2017 at research farm, Department of Soil and Water Engineering, Punjab Agricultural University, Ludhiana and University Seed Farm, Ladhowal to study the effect of drip irrigation, fertigation and mulching on productivity of soybean. The soil of the experimental field was sandy loam and loamy sand at Ludhiana and Ladhowal, respectively. At both the sites, soil was low in organic carbon, available nitrogen, medium in available phosphorous and potassium. The treatments included three levels of drip irrigation (100% ETc, 80% ETc and 60% ETc) and three fertigation levels 50, 75 and 100% RDF and two levels of mulch i.e. no mulch and paddy straw mulch @ 6 tonne ha-1 and control plot (conventional furrow irrigation with RDF). The experiment was laid in randomized complete block design with three replications. Among drip irrigation levels seed yield was significantly increased to the tune of 14.2 and 11.8 per cent with increasing drip irrigation level from 60% ETc to 80% ETc for Ludhiana and Ladhowal, respectively. However, further increase in irrigation level up to 100% ETc increased the seed yield marginally by 3.5 and 4.6 per cent for respective locations. With increasing fertigation level from 50% to 75% RDF seed yield was significantly increased to the tune of 9.2 and 9.4 per cent for Ludhiana and Ladhowal, respectively. However, further increase up to 100% RDF increased the seed yield by 4.8 and 5.3 per cent for respective locations. Application of paddy straw mulch resulted in 13.0 and 9.8 per cent increase in seed yield over no mulch. Mean of all combinations of drip irrigation, fertigation and mulching treatments recorded 12.3 and 19.2 per cent increase in yield as compared to conventional furrow irrigation (control) for Ludhiana and Ladhowal respectively. The quality parameters like oil content, protein content and oil yield were significantly influenced by drip irrigation, fertigation and mulching at both the locations.
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    ThesisItemOpen Access
    Growth and productivity of soybean [Glycine max (L.) Merrill] as influenced by nitrogen application at different stages
    (Punjab Agricultural University, Ludhiana, 2018) Bhangu, Ritu; Virk, Harpreet Kaur
    The investigation entitled “Growth and productivity of soybean [Glycine max (L.) Merrill] as influenced by nitrogen application at different stages” was conducted at Pulses Research Farm, Department of Plant Breeding & Genetics PAU, Ludhiana and Regional Research Station, Faridkot during kharif 2017. The soil of experimental site at Ludhiana was loamy sand with low organic carbon and available nitrogen, high available phosphorus and medium available potassium. Whereas, at Faridkot, soil texture was loam with medium organic carbon, low available nitrogen, medium available phosphorus and high available potassium. The experiment was laid out in randomized complete block design replicated four times using soybean variety SL 958. The experiments were sown on 9 June and 14 June, 2017 at Ludhiana and Faridkot, respectively. The experiment consisted of ten treatments comprising, control, seed inoculation (SI) with Bradyrhizobium sp., recommended dose of nitrogen (RDN) (39 kg ha-1), RDN + SI, SI + 15 kg N ha-1 at sowing + 15 kg N ha-1 at flower initiation (FI), SI + 10 kg N ha-1 at sowing + 10 kg N ha-1 (FI) + 10 kg N ha-1 at pod initiation (PI), SI + 40 kg N ha-1 at sowing, SI + 20 kg N ha-1 at sowing + 20 kg N ha-1 (FI), SI + 20 kg N ha-1 at sowing + 10 kg N ha-1 (FI) + 10 kg N ha-1 (PI), RDN + SI + 2% urea spray at 60 and 75 days after sowing (DAS) at flowering and podding stages. The results revealed that treatment of SI + 20 kg N ha-1 at sowing + 10 kg N ha-1 (FI) + 10 kg N ha-1 (PI) recorded the highest seed yield of 2468 and 2212 kg ha-1 at Ludhiana and Faridkot, respectively. Treatment of SI + 20 kg N ha-1 at sowing + 10 kg N ha-1 (FI) + 10 kg N ha-1 (PI) improved growth parameters like dry matter accumulation, LAI which was reflected in higher seed yield. The symbiotic parameters (nodule count, nodule dry weight and leghaemoglobin) were maximum in SI + 40 kg N ha-1 at sowing which was however, statistically at par with SI + 20 kg N ha-1 at sowing + 10 kg N ha-1 (FI) + 10 kg N ha-1 (PI). The application of nitrogen at flowering and pod initiation stages also improved the nutrient uptake and protein content of the crop. Treatment of SI + 20 kg N ha-1 at sowing + 10 kg N ha-1 (FI) + 10 kg N ha-1 (PI) also gave significantly higher net returns and B:C ratio. Therefore, it can be concluded that growth and productivity of soybean improved with application of nitrogen at reproductive stages as SI + 20 kg N ha-1 at sowing + 10 kg N ha-1 (FI) + 10 kg N ha-1 (PI) and provided high net returns and B:C ratio.
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    ThesisItemOpen Access
    Productivity of oilseed rape (Brassica napus L.) and garden pea (Pisum sativum L.) intercropping system
    (Punjab Agricultural University, Ludhiana, 2018) Pawar, Suman; Jagmohan Kaur
    The study entitled “Productivity of oilseed rape (Brassica napus L.) and garden pea (Pisum sativum L.) intercropping system”, was carried out at Student’s Research Farm, Department of Agronomy, Punjab Agricultural University, Ludhiana, during rabi 2016-17 and 2017-18. The soil of the experimental field was loamy sand, normal in pH and electrical conductivity, low in available N, medium in available P and K. The experiment was laid out in randomized complete block design with four replications. The treatments consisted of three cultivars of oilseed rape viz., GSC 6, GSC 7 and Hyola PAC 401 intercropped with garden pea (Punjab 89) in 1:1 (Furrow 60 cm), 1:1 (Flat 60 cm), 1:2 (Flat 90 cm) row proportions, sole GSC 6 (Flat 30 cm), sole GSC 7 (Flat 30 cm), sole Hyola PAC 401 (Flat 30 cm), sole garden pea (Ridge 60 cm) and sole garden pea (Flat 30 cm). Seed yield of oilseed rape cultivars viz., GSC 6, GSC 7 and Hyola PAC 401 were not significantly influenced by different intercropping treatments. Flat sown sole pea produced highest green pod yield which was significantly higher than all other treatments. Significantly higher equivalent yield and system productivity of oilseed rape cultivars was recorded in different intercropping systems with garden pea as compared to the sole oilseed rape crop stand. Land equivalent ratio of different intercropping systems was more than one and was highest in furrow sown Hyola PAC 401 + ridge sown garden pea in 1:1 row ratio (1.18). All the oilseed rape based intercropping systems resulted in higher gross returns when compared to their sole crop stand. Intercropping of GSC6 , GSC 7 and Hyola PAC 401 with garden pea in either 1:1 or 1:2 row ratio makes oilseed rape intercropping system more remunerative because of increase in the net returns to the tune of ` 4,200 to `11,000 ha-1.
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    ThesisItemOpen Access
    Weed management in maize (Zea mays L.) using straw mulch and herbicides
    (Punjab Agricultural University, Ludhiana, 2018) Ramandeep Kaur; Charanjeet Kaur
    The field experiment entitled “Weed management in maize (Zea mays L.) using straw mulch and herbicides” was conducted at Students’ Research Farm, Department of Agronomy, PAU, Ludhiana and Research Farm, Regional Research Station Gurdaspur (PAU) during kharif 2017. The experiment was conducted in a factorial randomized block design with three replications. There were three mulch treatments as first factor (no mulch, paddy straw mulch at 6.25 t ha-1 and paddy straw mulch at 9.0 t ha-1) and six weed control treatments were taken as second factor viz. atrazine at 1.0 kg ha-1 pre-emergence, atrazine at 0.8 kg ha-1 preemergence, tembotrione at 0.110 kg ha-1 at 20 DAS, tembotrione at 0.088 kg ha-1 at 20 DAS, weed free and unweeded check. The major weed flora included Dactyloctenium aegyptium, Eragrostis tenella, Digitaria sanguinalis, Echinochloa colona, Cynodon dactylon as grasses, Trianthema portulacastrum as broadleaf weed and Cyperus rotundus as sedge. Among different mulch treatments, application of paddy straw mulch at 9.0 t ha-1 recorded significantly lower density and weed dry matter accumulation of grasses, sedges and broadleaf weeds as compared to paddy straw mulch at 6.25 t ha-1 and no mulch treatments. Highest yield attributing characters, grain yield, net returns and benefit cost ratio were recorded with application of paddy straw mulch at 9.0 t ha-1 which were significantly higher than application of paddy straw mulch at 6.25 t ha-1 and no mulch treatment. Also, application of paddy straw mulch at 6.25 t ha-1 produced significantly higher growth and yield attributes of maize as compared to no mulch treatment. Among the herbicide treatments, tembotrione at 0.088 kg ha-1 and tembotrione at 0.110 kg ha-1 were found very effective in controlling different weed species as compared to atrazine at 0.8 kg ha-1 and atrazine at 1.0 kg ha-1. Application of tembotrione at 0.088 or 0.110 kg ha-1 in combination with straw mulch at 9.0 t ha-1 recorded significantly lower density and dry matter accumulation of all weed species but resulted in significantly higher yield attributing characters, grain yield, net returns and benefit cost ratio as compared to all other combinations of straw mulch and herbicides. Thus, for getting higher productivity and profitability from maize, tembotrione at 0.088 kg ha-1 as post-emergence in combination with paddy straw mulch at 9.0 t ha-1 can be applied, as this herbicide-mulch combination helps in reduction of 20% dose of herbicide.
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    ThesisItemRestricted
    Integrated weed management in autumn potato (Solanum tuberosum L.)
    (Punjab Agricultural University, Ludhiana, 2018) Shafiq, Mohammad; Simerjeet Kaur
    Integrated weed management in autumn potato (Solanum tuberosum L.)
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    ThesisItemOpen Access
    Nitrogen scheduling for canola oilseed rape (Brassica napus) sown on varied dates
    (Punjab Agricultural University, Ludhiana, 2018) Loveleen Kaur; Sardana, Virender
    A field study was conducted during rabi 2016-17 at the Punjab Agricultural University, Ludhiana (30o54‟N, 75o48‟E) to investigate the influence of sowing time, dose and time of application of nitrogen (N) on growth, productivity, nitrogen uptake and quality of oilseed rape (Brassica napus L.). The experiment was laid out in split plot design in three replications with three sowing dates (15 October, 30 October and 15 November) in the main plots, whereas the sub plots comprised seven treatments of dose and time of application of N viz; application of 100 and 125 kg/ha of N in two equal splits at sowing and at initiation of stem elongation, 100 kg/ha of N in two splits as 25 kg at sowing and 75 kg at stem elongation, 100 kg/ha of N in three splits as 50+25+25, 25+50+25, 34+33+33 and 125 kg/ha of N in three splits as 50+50+25 at sowing, initiation of stem elongation and initiation of flowering, respectively. Canola oilseed rape variety GSC 7 was sown at spacing of 45 cm x 10-12 cm. Soil of the experimental field was loamy sand Ustochrept, neutral in pH, low in organic carbon and available nitrogen and rich in available phosphorus and medium in available potassium. With delay in each sowing from 15 October to 30 October to 15 November, the number of days required for emergence, flowering and physiological maturity significantly increased. However delay in sowing significantly reduced the plant height, dry matter accumulation (DMA) and PAR interception at different growth stages, number of secondary branches per plant, seeds per siliqua and 1000 seed weight, N content except in stem at 80 DAS and uptake by different plant parts at different growth stages and in seed and stover at maturity. Crop sown on 15 October produced 4.1%, 27.3%, 2.9% and 10.8% higher seed, stover, oil and seed protein yield, respectively than 30 October sown crop which in turn, out yielded 15 November sown crop by 36.1%, 36.4%, 41.2% and 40.9% for seed, stover, oil and seed protein yields, respectively. Sowing dates had inconspicuous effect on different fatty acids of oil. Higher dose of N (125 kg/ha) in general resulted in better growth, improvement in yield attributes, yields (seed, stover, oil and protein) and N uptake than 100 kg/ha. However response of time of application of N was variable. Application of N in two equal splits at sowing and initiation of stem elongation resulted in more plant height, DMA, SPAD value at different growth stages than its application in three splits. The highest seed yield (2681 kg/ha) and oil yield (1056 kg/ha) produced by 15 October sown crop with application of 125 kg/ha of N in three splits as 50 kg at sowing + 50 kg at initiation of stem elongation + 25 kg at initiation of flowering was at par with the crop sown on 15 October with the application of 100 and 125 kg/ha of N in two equal splits and that sown on 30 October with application of 125 kg/ha of N in three splits but significantly higher than all other treatments. The effect of dose and time of application of N on fatty acid composition of oil was not significant.
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    ThesisItemRestricted
    Fodder productivity and quality of Napier Bajra hybrid (Pennisetum purpureum  Pennisetum glaucum) and summer fodder intercrops with different seed rates
    (Punjab Agricultural University, Ludhiana, 2018) Rashpinder Singh; Tiwana, U.S.
    The present study entitled “Fodder productivity and quality of Napier Bajra hybrid (Pennisetum purpureum  Pennisetum glaucum) and summer fodder intercrops with different seed rates” was carried out at Forage Research Farm, Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana during Kharif 2016 on sandy loam soil. The soil of experiment site was low in organic carbon (0.26%) and available nitrogen (218.4 kg ha-1), medium in available phosphorous (19.2 kg ha-1) and potassium (180.5 kg ha-1). The experiment was laid out in a randomized complete block design replicated thrice. The treatments consisted of Napier Bajra hybrid + Cowpea (25, 50, 75 and 100% of recommended seed rate), Napier Bajra hybrid + Bajra (25, 50, 75 and 100% of recommended seed rate), Napier Bajra hybrid + Maize (25, 50, 75 and 100% of recommended seed rate) and the sole crops of Napier Bajra hybrid, cowpea, maize and bajra. The sole Napier Bajra hybrid recorded significantly higher number of tillers per stump and maximum plant height. The plant height in sole Napier Bajra hybrid, was at par with intercropping of Napier Bajra hybrid and cowpea at 25, 50 and 75% of recommended seed rate, maize at 25 and 50% of recommended seed rate and bajra at 25% of recommended seed rate. Leaf stem ratio was maximum with 100% recommended seed rate of all intercrops. Lowest weed density was recorded in Napier Bajra hybrid + cowpea 100% mixture while maximum weed density was noticed in sole Napier Bajra hybrid. Total green fodder productivity was significantly higher in Napier Bajra hybrid + cowpea 100% but was at par with cowpea (at 50 and 75% of recommended seed rate) and maize (at 25% of recommended seed rate). The quality and soil parameters were improved with increased seed rate of cowpea in the intercropping system. Significantly higher crude protein and lower oxalate content were observed in mixture of Napier Bajra hybrid and cowpea. Significantly higher crude protein content was noticed in Napier Bajra hybrid + cowpea 100% which was at par with cowpea (at 50 and 75% of recommended seed rate). In different intercropping systems, Napier Bajra hybrid was dominant crop as indicated by its higher values of relative crowding coefficient, competitive ratio and positive sign of the aggressivity except maize and bajra at 100% of recommended seed rate. It indicates that Napier Bajra hybrid grown in association with intercrops (cowpea, maize and bajra) utilized the resources more aggressively which exhibited the dominated behaviour of the intercrops. Net returns were significantly higher in Napier Bajra hybrid + cowpea 75% which was at par with Napier Bajra hybrid + cowpea 100%, Napier Bajra hybrid + cowpea 50% and Napier Bajra hybrid + maize 25%. Benefit cost ratio was higher in all combinations of Napier Bajra hybrid + cowpea and in intercropping of Napier Bajra hybrid with maize and bajra at 25 and 50% of recommended seed rate.