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Subject: Agricultural Chemicals × End date: 2009 × Start date: 2004 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Harvest time residues of Fantac and Benfuracarb in rice and soil
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2007-06) Pant, Renuka; Bali Ram
    Benfuracarb is a new carbamate insecticide which controls a wide range of insects such as aphids, wireworms, corn rootworms, loopers, borers, and thrips in many different crops including cotton, corn, and beans. Fantac (biostimulant) is a mixture of 5% N-acetyl thiazolidine carboxylic acid (L-cystine derivative) and 0.1% folic acid. It is used to stimulate seed germination, increase plant growth, improve fruit rating and increase yield on wide range of crops including wheat corn, rice, sugar beet, potatoes, grapes strawberry and apples. Harvest time residues of Benfuracarb and Fantac in paddy grain, husk, straw and soil were determined. Benfuracarb formulation (Oncol 40EC) was applied at the rate of 0.25 and 0.50 ppm and Fantac formulation was applied at the rate of 0.75 and 1.50 ppm. The analysis of the samples was done by high performance liquid chromatography.The results revealed that the residues of Benfuracarb and Fantac were non detectable (<0.01ppm) for both the treatments. Benfuracarb and Fantac are safe from environmental and health points of view as their residues if presentare in very lowconcentrations both in crop and soil at the time of harvest.
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    ThesisItemOpen Access
    Major cationic and anionic composition of ground water of Crop Research Centre, Pantnagar, with special reference to irrigation
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2007-06) Kumar Amit; Viveka Nand
    The study area i.e CRC (Crop Research Center), G. B. Pant University of Agriculture and Technology, Pantnagar is extended to an area of 230 ha. It is located at the foot hills of Shivalik range of mountains in Kumaon at 29°N latitude and 79°3’E longitude at an altitude of 243.84m above mean sea level. It provides facilities for research on various field crops. Scientists and post graduate students from various disciplines conduct field experiments on rice, wheat, maize, soybean, grain legumes, oilseeds and sugarcane. Entire area is irrigated with artesian wells and tube wells. The samples were collected from an artesian well, located at the distance of about 2.5 to 3 meters right side from the main entrance of the Crop Research Center, Pantnagar. In view of the existing literature, the proposed plan of work broadly concerns to conduct a study of hydro chemical properties of ground water sources of crop research center, Pantnagar with the following objectives viz to study the major inorganic cationic and anionic composition, to evaluate suitability of ground water for livestock,to utilize hydro chemical properties to assess irrigation qualities like magnesium content, sodium percentage (Na %), sodium absorption ratio (SAR), residual sodium carbonate (RSC) and permeability index (PI). Hydrochemistry of the ground water in the study area shows that, the alkaline earths (Ca2+ and Mg2+ ) exceed the alkalies (Na+ and K+), weak acid (HCO3 -) exceeds strong acids (Cl-, SO4 2-, NO3 -), that is total hydrochemistry is dominated by alkaline earth and weak acid. Hence the ground water of the stydy area is calcium magnesium bicarbonate type. The total concentration of the major ions in the ground water increases at the end of monsoon ie. at the post monsoon periods, in comparison to those at the end of lean period. The groundwater is highly suitable for drinking purpose and public health because hardness of the ground water is below the permissible limit of 500 mg/l. The groundwater is also suitable for irrigation with low alkali hazard. The SAR, RSC, Na%, PI, magnesium content were within the safe water limit recommended for irrigation purpose.
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    ThesisItemOpen Access
    Adsorption behaviour of FANTAC on two different soil clays
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2008-06) Sarkar, Subrata; Srivastava, Anjana
    Fantac(N-ATCA) is a synthetic biostimulant which is a mixture of 5% N-acetyl thiazolidine 4-carboxylic acid and 0.1% Folic acid.It enhances plant metabolism and grants a better response under stressing conditions.Alaboratory study wsa undertaken to examine UV spectra of N-acetyl thiazolidine 4-carboxylic acid(N-ATCA) in 0.005%CaCl2 and to investigate the adsorption behavior of (N-ATCA) on Ca 􀂲kaolinite Ca-bentonite.The adsorbance of 5 mg (N-ATCA) solution in water and 0.005M CaCl2 decreased with the increasing wavelength in the range of 200 to 300 nm.The wavelength at which the adsorbance was least affected by the presence of electrolyte was found to be at 210 nm.. The adsorption kinetics of N-ATCA on both the soil clays occurred in two phases, an initial faster and later slower rate. Each adsorption phase followed the first order kinetics. The computed values of the initial adsorption rate coefficient (k1) were 0.0085 for Ca-kaolinite and 0.02 for Ca-bentonite.Similarly,the values of later slower adsorption rate coefficient s(k2) were 0.0003 for Ca-kaolinite and 0.0017 for Cabentonite. The values of adsorption maximum (Xm) were found to be 416.67mg kg-1 for Ca-kaolinite and 769.23 mg kg-1 for Ca-bentonite