Thumbnail Image

M. Sc. Dissertations

Browse

20114
Reset filters
Subject: Agronomy × End date: 2011 × Start date: 2011 × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 4 of 4
  • Thumbnail Image
    ThesisItemOpen Access
    Performance of Bt. Cotton under different spacings and nutrient levels
    (2011) Jat, Ramdhan; Nanwal, R.K.
    A study entitled, “Performance of Bt. Cotton under different spacings and nutrient levels ”, was conducted at Research Farm, Department of Agronomy, CCS Haryana Agricultural University, Hisar during Kharif 2010. The soil of experimental field was sandy loam in texture and slightly high in pH. Soil tested low in organic carbon and available nitrogen and medium in available phosphorus and high in potassium. The experiment was conducted in split plot design with three replications. The combination of three spacings (100x40 cm, 100 x 50 cm and 100 x 60 cm),two time of N fertilizer application viz., T1 :50 per cent at flowering and 50 per cent at square formation, T2: 25 per cent as basal, 37.5 per cent at flowering and 37.5 per cent at square formation, were kept in main plots while three nutrient levels viz., F1 131.2: 45: 45 NPK (Kg/ha), F2 175.0:60:60 NPK (Kg/ha), F3 218.7: 75: 75 NPK (Kg/ha), were kept in subplots. Maximum plant height was recorded at closer spacing of 100x 40 cm. Maximum sympods per plant were recorded in wider spacing (100 x 60 cm) which were significantly higher than closer spacing (100 x 40 cm and 100 x50 cm). Seed cotton yield (Kg/ha) was highest in closer spacing (100 x 40 cm). Maximum oil content (%) and protein content (%) was recorded in cotton seed in wider spacing (100 x 60 cm) which were significantly higher than closer spacings (100 x 40 cm and 100 x50 cm). Available N, P and K in soil after harvesting of crop were significantly differs with respect to plant spacing, time of N application and nutrient levels. Spacing 100 x 40 cm and 100 x 50 cm resulted in higher total cost of cultivation, gross returns and net returns than 100 x 60 cm with 100 per cent and 125 per cent of recommended dose of fertilizers Benefit: cost ratio was significantly better in spacing 100 x 40 cm and 100 x 50 cm with 100 per cent and 125 per cent of recommended dose of fertilizers with three split doses of N fertilizer.
  • Thumbnail Image
    ThesisItemOpen Access
    Studies on growth, forage yield and quality of maize (Zea mays L.) as influenced by integrated nutrient management
    (CCSHAU, 2011) Sachin Kumar; Anil Kumar
    The field experiment entitled, “Studies on growth, forage yield and quality of maize (Zea mays L.) as influenced by integrated nutrient management” was conducted during kharif season of 2010 at Forage Research Farm of Chaudhary Charan Singh Haryana Agricultural University, Hisar with the objective to study the effect of organic, inorganic and biofertilizer sources of nutrients on growth, yield, quality, NPK content, their uptake and economics of forage maize under different combination of treatments. Ten different treatments were taken for the experimental study i.e. Control (T1), Azotobacter chroococcum (T2), 100 per cent N through farm yard manure (FYM) (T3), 100 per cent recommended dose of fertilizer (RDF) (T4), 75 per cent RDF + Azotobacter chroococcum (T5 ) 75 per cent RDF + 25 per cent N through FYM (T6), 75 per cent RDF + 25 per cent N through FYM + Azotobacter chroococcum (T7), 50 per cent RDF + Azotobacter chroococcum (T8), 50 per cent RDF + 50 per cent N through FYM (T9), 50 per cent RDF + 50 per cent N through FYM + Azotobacter chroococcum (T10) were laid out in Randomized Block Design with three replications. The growth parameters viz., plant height (cm), dry matter accumulation (g/plant), LAI, LAD, CGR, Leaf: stem ratio were significantly higher in 100 per cent RDF and 75 per cent RDF + 25 per cent N through FYM + Azotobacter chroococcum (T7) treatments than rest of the treatments. Green forage yield in treatments; T4 (460 q/ha), T7 (443 q/ha), T6 (426 q/ha) and T10 (408 q/ha) were 93.2, 86.1, 78.9 and 71.4 per cent higher respectively over the control. Dry matter yield in treatments; T4 (114.2 q/ha), T7 (109.8 q/ha), T6 (105.1 q/ha) and T10 (100.8 q/ha) were 80.9, 74.0, 66.5 and 59.7 per cent higher respectively over the control The highest N and P content (%) was recorded in T4 (1.14 and 0.16) followed by T3 ( 1.08 and 0.14) but maximum K content (%) was recorded in T3 (1.15) and closely followed by T1 0 (1.13). The uptake was 168.1, 139.6 and 103.5 per cent higher in T4 compared to T1, T2 and T8 treatments, respectively. The maximum crude protein content was 6.90% in T4 and it was followed by T3 (6.76%) and T7 (6.57%) treatments, respectively. Maximum in-vitro dry matter digestibility (54.1%) was in 100 per cent N through FYM in the control (47.5%) and digestible dry matter yield (58.9 q/ha) was also maximum with the use of 100 per cent RDF. Maximum gross returns (Rs. 41400 /ha), net returns (Rs. 17715 /ha) and B: C ratio (1.74) were found in the treatment T4 (100% RDF) and T7 (75 per cent RDF + 25 per cent N through FYM + Azotobacter chroococcum) treatment with values of Rs. 39870/ha (Gross returns), Rs. 15665/ha (Net returns) and 1.64 (B: C ratio).
  • Thumbnail Image
    ThesisItemOpen Access
    Response of basmati rice cultivars to different levels of nitrogen and phosphorus
    (CCSHAU, 2011) Sharma, Dinesh; Ishwar Singh
    The present study entitled “Response of basmati rice cultivars to different levels of nitrogen and phosphorus” was carried out at Farm of College of Agriculture, Kaul (Kaithal) Chaudhary Charan Singh Haryana Agricultural University, Hisar during kharif season of 2010 on clay loam alkaline soil, low in organic carbon and available nitrogen, medium in phosphorus and high in potassium. The treatments consisted of four cultivars (CSR-30, HKR03-408, Pusa Basmati-1 and Pusa Basmati-1121) and six NP levels laid out in split-plot design with three replications, keeping cultivars in main plots and NP levels in sub plots. Thirty days old seedlings of the crop were transplanted mainly on a well puddled soil at a hill spacing of 20 cm x 15 cm with two seedlings per hill. The studies revealed that the tall cultivars (CSR-30 and HKR03-408) took longer time to attained 50% flowering and maturity than semi dwarf cultivars (Pusa Basmati-1 and Pusa Basmati-1121). The number of tillers increased with the age of crop up to 60 days after transplanting (DAT) and thereafter, slight reduction was recorded at 90 DAT. Dry matter accumulation increased with the advancement of crop stages and maximum increase was observed during 60-90 DAT. The semi dwarf cultivars produced more tillers/m2 than taller cultivars but reverse was true for dry matter accumulation and head rice recovery. Pusa basmati-1121 was found best as it gave the highest grain yield, net income, benefit cost ratio, longest kernel and length breadth ratio than all other cultivars. Pusa Basmati-1121 showed maximum uptake than tall cultivars. Increasing NP levels significantly increased all the crop growth parameters viz. plant height, tillers/m2, dry matter accumulation. The yield contributing characters (panicles/m2, grains/panicle), yield (grain and straw), net profit and benefit cost ratio were higher with N90P45 kg ha-1. Application of N90P45 kg ha-1 also showed highest nitrogen and phosphorous uptake.
  • Thumbnail Image
    ThesisItemOpen Access
    Studies on weed management in chickpea (Cicer arietinum L.) under irrigated conditions
    (CCSHAU, 2011) Nerender Kumar; Nandal, D.P.
    The field experiment entitled “Studies on weed management in chickpea (Cicer arietinum L.) under irrigated conditions” was conducted at Students’ Research Farm, College of Agriculture, Kaul (Kaithal) Chaudhary Charan Singh Haryana Agricultural University, Hisar during rabi season of 2010-11. The experiment was laid out in Randomized Block Design with three replications consisting of twelve weed control treatments (clodinafop at 60 g/ha at 45 DAS, pinoxaden at 50 g/ha at 45 DAS, clodinafop at 60 g/ha at 45 DAS + one hoeing at 70 DAS, pinoxaden at 50 g/ha at 45 DAS + one hoeing at 70 DAS, pendimethalin at 1000 g/ha as PRE, trifluralin 1000 g/ha as PPI, pendimethalin at 1000 g/ha as PRE fb clodinafop at 60 g/ha at 45 DAS, trifluralin at 1000 g/ha as PPI fb clodinafop at 60 g/ha at 45 DAS, pendimethalin at 1000 g/ha as PRE fb pinoxaden at 50 g/ha at 45 DAS, two hand weeding, weedy check and weed free). The dominant weed flora was Chenopodium album, Medicago denticulata and Phalaris minor. Pendimethalin effectively controlled the population of Chenopodium album, Medicago denticulate and Phalaris minor. Pinoxaden and clodinafop were found effective in controlling Phalaris minor. Pinoxaden was found slightly phytotoxic to chickpea plants, which later on recovered at 75 DAS. Trifluralin was phytotoxic to chickpea crop and its application resulted in lower plant height of chickpea plants at earlier stage of crop growth, but did not cause mortality of crop. The highest grain yield was obtained in weed free treatment followed by two hand weeding. Weedy condition throughout crop season resulted in 68 and 65 per cent reduction in chickpea yield as compared to weed free and two hand weedings respectively. Pre-emergence application of pendimethalin at 1000 g/ha fb post-emergence use of pinoxaden at 50 g/ha applied at 45 DAS produced maximum grain yield of chickpea amongst herbicidal treatments.