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Master Degree Theses

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Subject: Soil Science and Water Management ×

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    ThesisItemOpen Access
    Effect of Irrigation Regimes and Levels of Nitrogen on Yield and Nutrient Uptake by Cabbage (Brassica Oleracea Var. Capitata) Cultuvar Golden Acre
    (DEPARTMENT OF SOIL AND WATER MANAGEMENT N. M. COLLEGE OF AGRICULTURE GUjarat AgricuIturaI University, 1993-08) SOLANKI, RATILAL N.; Kaswala, R.R.
    For knowing the effect of various irrigation regj,mes and levels of nitrogen on cabbage (lca oleracea Var. \h Capi tata) cv. Golden Acre grown on Typic Chromustert of &>uth Gujarat, an experiment was conducted 1n Factorial Randomized Block Deslgn with three replications at Trial-cum-Demonstratio~ Farm, Bardoll. The treatment comprlse~ of four levelS cf irrigation viz., 1 0 • 5 (0.5 lW/CPE ratio), 1 0 • 7 (0.7 lW/CPE ratio), 10 • 9 (0.9 IW/CPE ratio) and 1 1 • 1 (1.1 lW/CPE ratio); J,"LL and three levels of nitrogelz. NSO (50 kg Nf. N75 (75 kg h"I-"- Z N and N100 (100 kg N Different levels of irrigation and nitrogen had significant influence on the head yield. total fresh wrtght, mean head weight, head diameter and head circumference of cabbage. Frequent irrigations at 1.1 IW/CPE ratio recorded highest yield, total fresh welQht/plant, mesn head weight, head diameter and head circumference but their valuea were at par with 0.9 IW/CPE ratio. The head yield and total freeh weight/plant were signl.ficantly higher when nitrogen was applied @ 100 kg/ha. The mean head weight atXl diamet .... and circwnference of head ... ere higher at 100 kg N application rate but their values ere at par with 75 kg N application rate. Number of unwrapped leaves and their area incrsased sig~ificantly with increase in irrigation frequency as well ae nitrogen level. Irrigation levels did not affect LA! but nitrogen levels influenced significantly. Both nitrogen and irrigation induced earlyness in maturity,. ~lY maturity was noticed with higher levsl of irrigation and at high rate of nitr~gen application. Consumptive use of water was increased with increase 1n irrigation regimes as well as nitrogen levels. It was maximum (484 mm) with irrigation at 1.1 IW/CPE ratio. Similarly. application of 100 kg N/ha recorded highest CU (385.7 mm). CWUE and WUE generally decreased with increase in irrigation they whereas/increased with increase in nitrogen levels. About 64.5 to 75.3 per cent moisture was extracted from the top soil layer (0-30 cm) and it decreased with depth. The content and uptake of nitrogen. phosphorus and potassium increased significantly with increase in irrigation as well as nitrogen levels. All the interactions were non-significant. After harvest of crop total nitrogen content of soil remained unaffected but available P20S and K20 increased with increase 1n lrri Qatlon as well as nitrogen levels.
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    ThesisItemOpen Access
    EFFECT OF IRRIGATION LEVELS AND MULCHES ON YIEl·D AND NUTRIENT UPTAKE BY CABBAGE (Brassica oleracea Var. Capitate) CV. GOLUEN ACk E AND SOIL CHA NG ES
    (Department of Soil and water Management N.M. College of Agriculture Gujarat Agricultural University Navsari Campus, Navsari, 1993-07) Chaudhari, K.C.; Kaswala, R .R.
    A field trial was cond ucted during Rabi season of 1991-9 2 at the Main Irrigetion Research Centre. Gujarat Agricultural University. Nevsari Campus, Navseri to evaluate the effect of different irrigation levels based on IW/CPE ratios and mulches The yield a8 well as growth and yield attributing characters pf cabbage were found to be significantly affected by different treatments of irrigation as well as ~ulches. The highest head yield of 10446 kg ha- 1 was obtained with 11 treatment which was at par with 12 but significantly superior over 1 3 • AmOogst the mulches, the highest yield of 10962 kg ha- 1 was obtained under Black polyethylene mulch followed by Green -1) ( -1) (10877 kg ha and yellow 10649 kg ha polyethylene mulch. They were at par. The CU of water increased with i on yield and nutrient uptake by cabbage (Brasslca oleracea. Var.Capitata) CV.Golden Acre and soil changes raised on Vertic Ustochrept of South Gujarat. The trial was laid out in three replications in Fectorial Randomised Block Design with all possible combinations three irrigation levels based on IW/CPE ratios viz., 0.50 (1 1), (12) and 1.00 (1 3) and five mulches viz sugarcane tra sh 10 t he- 1 (M1). Black Polyethylene (~). Gr-gn Polyethylene (M3) and Yellow Polyethylene