scholarly journals Field Evaluation of Unsteady Drain Spacing Equations for Optimal Design of Subsurface Drainage System under Waterlogged Vertisols of Maharashtra

2020 ◽  
Author(s):  
S. D. Rathod ◽  
S. D. Dahiwalkar ◽  
S. D. Gorantiwar ◽  
M. G. Gorantiwar
Keyword(s):  
Optimal Design ◽  
Field Experiment ◽  
Water Table ◽  
Agricultural Research ◽  
Drainage System ◽  
Field Evaluation ◽  
Depth Estimation ◽  
Subsurface Drainage ◽  
Research Station ◽  
Drain Spacing

The field experiment was conducted at Agricultural Research Station, Kasbe Digraj, Dist. Sangli during Adsali sugarcane season of 2012-13 to 2013-14. The experiment was conducted by installing subsurface drainage system with 10, 20, 30 and 40 m drain spacing and 1 m drain depth. In view of different costs and effectiveness of subsurface drainage associated with the varying depths and spacings, field evaluation of unsteady drain spacing equations was important for finding out the optimal drain spacing equation among various equations. The field evaluation of unsteady drain spacing equations revealed that the van Schilfgaarde, Hammad, Modified Glover, Guyon and Integrated Hooghoudt’s equation performed satisfactory for estimation of water table depths among seven unsteady drain spacing equations. The Glover-Dumm and Modified Glover-Dumm’s equations were not performed satisfactory for estimation of water table depths. Among unsteady drain spacing equations, van Schilfgaarde’s equation performed better and hence recommended for water table depth estimation and in turn for optimal design of subsurface drainage system under waterlogged Vertisols of Maharashtra.

scholarly journals Calibration of DRAINMOD for prediction of water table depths and drain discharges under waterlogged Vertisols of Maharashtra, India

2019 ◽  
Vol 11 (3) ◽  
pp. 724-731
Author(s):  
Shrimant Rathod ◽  
Sudhir Dahiwalkar ◽  
Sunil Gorantiwar ◽  
Mukund Shinde
Keyword(s):  
Water Table ◽  
Agricultural Research ◽  
Drainage System ◽  
Subsurface Drainage ◽  
Design Parameters ◽  
Design System ◽  
Research Station ◽  
Drain Spacing ◽  
Drainage Design ◽  
Rainy Days

An estimation of optimal design parameters of subsurface drainage system through monitoring of water table depths and drain discharges are expensive in terms of time and money. The simulation modeling is an effective tool for estimation of drainage design parameters at less cost and short time. In view to this, calibration of DRAINMOD model for prediction of water table depths and drain discharges were conducted by installing subsurface drainage system with 40 m drain spacing and 1.0 m drain depth at Agricultural Research Station, Kasbe Digraj, Dist. Sangli (Maharashtra) during 2012-13 to 2013-14. The field data on water table depth and drain discharge were used for calibration of DRAINMOD model. The input data files on climatic, soil, crop and drainage design system parameters were attached to DRAINMOD model and calibrated successfully. It is found that both observed and simulated water table depths and drain discharges showed a fluctuating trend and predicted both water table depths and drain discharges closely with the observed values during frequent rainy days and following the rainy days. The DRAINMOD model reliably predicted water table depths with a goodness of fit (R2 = 0.97), MAE (12.23 cm), RMSE (15.49 cm) and CRM (0.05); drain discharges with R2 of  0.93, MAE of 0.095 mm day-1, RMSE of 0.1876 mm day-1and CRM of 0.04. Thus, the calibrated DRAINMOD model can be used to simulate the water table depths and drain discharges in semi-arid climatic conditions of Maharashtra and in turn to estimate and evaluate drain spacing and depth.

scholarly journals Formulation and field evaluation of nutrient stick in oriental pickling melon (Cucumis melo L.)

2019 ◽  
Author(s):  
O. P. Mubarack ◽  
P. R. Suresh ◽  
N. K. Binitha
Keyword(s):  
Field Experiment ◽  
Agricultural Research ◽  
Block Design ◽  
Nutrient Release ◽  
Field Evaluation ◽  
Fertilizer Application ◽  
Research Station ◽  
Randomized Block Design ◽  
Release Studies ◽  
Phosphorus And Potassium

The study was conducted with the objectives to prepare and formulate a multi nutrient stick and to evaluate and compare its effect on oriental pickling melon with fertigation. The investigation was carried out in two parts: formulation of nutrient stick and field experiment using oriental pickling melon. The trials were conducted at College of Agriculture, Padannakkad and Regional Agricultural Research Station, Pilicode during 2016-18. The nutrient stick was formulated as per the nutrient requirement of oriental pickling melon. The nutrient release studies conducted using nutrient stick proved it to be suitable for soil application. A field experiment was carried out in randomized block design with nine treatments and three replications. The treatment combination with foliar silicon spray was found to be highly effective to the crop in terms of quality and yield parameters. The residual available soil nutrients especially nitrogen, phosphorus and potassium were higher in treatments with fertigation as compared to fertilizer application in the form of nutrient stick, which indicated better efficiency of nutrient sticks. These results clearly indicated the suitability of fertilizer application in the form of nutrient stick along with drip irrigation.

Influence of sowing dates on the incidence of powdery mildew of chilli

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
SUDHEENDRA A. ASHTAPUTRE
Keyword(s):  
Powdery Mildew ◽  
Field Experiment ◽  
Disease Severity ◽  
Agricultural Research ◽  
Time Interval ◽  
Research Station ◽  
Inoculum Potential ◽  
Weather Factors ◽  
Agricultural Research Station ◽  
Sowing Dates

A field experiment was conducted during kharif, 2005 at Agricultural Research station, Devihosur, Haveri, Karnataka to assess the progress of powdery mildew at different time interval of sowing dates. Totally 20 different dates of sowings were imposed in the experiment at an interval of 10 days. The crop sown on last week of May to mid of June recorded minimum disease severity compared to rest of the date of sowings. This clearly indicated that crop sown during this period suffers less, which may be due to low inoculum potential, whereas late sown crop suffers more because of the readily available inoculum in the early sown crops. Low disease severity in last week of May to mid of June sowing may be attributed to the non-congenial weather factors for the development of the disease.

scholarly journals Impact of Subsurface Drainage System on Water Table and Soil Hydologic Parameters

2017 ◽  
Vol 6 (7) ◽  
pp. 4014-4020
Author(s):  
Rahul Patil ◽  
P. Balakrishnan ◽  
U. Satish Kumar ◽  
G.V. Srinivasa Reddy ◽  
A.S. Channabasavanna ◽  
...  
Keyword(s):  
Water Table ◽  
Drainage System ◽  
Subsurface Drainage

scholarly journals Some properties of Dagan’s method for drain spacing determination in marshy - gley soil

2003 ◽  
Vol 48 (1) ◽  
pp. 69-75 ◽  
Author(s):  
Nevenka Djurovic ◽  
Ruzica Stricevic
Keyword(s):  
Steady State ◽  
Linear Function ◽  
Water Flow ◽  
Water Table ◽  
Drainage System ◽  
Water Table Depth ◽  
Flow Conditions ◽  
Drain Spacing ◽  
State Water ◽  
Dry Out

Dagan?s method as well as Kirkham?s one belong to the group of methods for drain spacing determination in steady state water flow conditions. Both methods are based on the assumption that drainage spacing (L) is linear function of water table depth and drainage discharge (h/q). The only difference can be distinguished in the values of coefficients. To dry out eugley type of soil, drain spacing is better determined by Dagan?s method in all treatments, as compared with Kirkham?s one. Advantage of this method is especially marked on the drainage system with narrower drain spacing.

scholarly journals RELAY INTERCROPPING OF DIFFERENT GOURDS WITH BRINJAL IN CHARLAND AREA

2020 ◽  
Vol 4 (1) ◽  
pp. 11-13
Author(s):  
Jubaidur Rahman ◽  
A.A Begum ◽  
Fouzia Sultana Shikha ◽  
A. Akter ◽  
R.R Saha
Keyword(s):  
Field Experiment ◽  
Agricultural Research ◽  
Block Design ◽  
Research Station ◽  
Economic Return ◽  
Randomized Complete Block Design ◽  
Sponge Gourd ◽  
Suitable Combination ◽  
Relay Intercropping ◽  
Ash Gourd

A field experiment was conducted to find out the suitable combination of relay intercropping of different gourds with brinjal for higher productivity and economic return at the Regional Agricultural Research Station, Jamalpur during rabi and kharif 2017-2018 and 2018-2019. The experiment was laid out in randomized complete block design (RCBD) with three replications and seven treatments. The treatments were T1= Sole brinjal, T2= Brinjal + relay sweet gourd, T3= Brinjal + relay ridge gourd, T4= Brinjal + relay bitter gourd, T5= Brinjal+ relay sponge gourd, T6= Brinjal + relay snake gourd, T7= Brinjal + relay ash gourd. Highest brinjal yield was observed in relaying snake gourd and sweet gourd combination (Y1 and Y2) which was statistically similar to sole brinjal and brinjal + relay ash gourd combination.

scholarly journals Evaluation of bio-efficacy of new fungicide molecule- Ametoctradin 300 g/l + dimethomorph 225 g/l sc against downy mildew of grapes in Northern Karnataka

2020 ◽  
Vol 13 (2) ◽  
pp. 192-194
Author(s):  
Arun R. Sataraddi ◽  
Jitendra Kumar S. Hilli
Keyword(s):  
Field Experiment ◽  
Downy Mildew ◽  
Agricultural Research ◽  
Grape Berry ◽  
Research Station ◽  
Agricultural Research Station ◽  
Appreciable Increase ◽  
Highly Effective ◽  
High Doses ◽  
Downy Mildew Disease

A field experiment was conducted to evaluate the efficacy of ametoctradin 300 g/l + Dimethomorph 225 g/l sc against downy mildew disease of grapes for 2 seasons at Agricultural Research Station Bagalkot district. It was found that Ametoctradin 300 g/ l + Dimethomorph 225 g/l sc is highly effective in reducing the downy mildew disease in grapes. Further the phytotoxicity was not observed in the chemical Ametoctradin 300 g/l + Dimethomorph 225 g/l sc to the treated plots of grapevine even at high doses and also exhibiting an appreciable increase in grape berry yield.

scholarly journals Evaluation of Parallel Pipe Subsurface Drainage System in a Waterlogged Paddy Field

2021 ◽  
Vol 108 (March) ◽  
pp. 1-7
Author(s):  
Kathirvel L ◽  
◽  
Manikandan M ◽  
Raviraj A ◽  
Baskar M ◽  
...  
Keyword(s):  
Groundwater Level ◽  
Paddy Field ◽  
Tamil Nadu ◽  
Root Zone ◽  
Soil Depth ◽  
Water Discharge ◽  
Drainage System ◽  
Subsurface Drainage ◽  
Drain Pipe ◽  
Drain Spacing

Inadequate natural drainage facilities and flat lands causes, some of the Cauvery river basin command are suffering waterlogging and alkalinity problems during the canal water supply and period of excess rainfall. Subsurface drainage system is the method to lower the depth to groundwater level below the root zone and creates a favorable environment for crop growth. A study aimed to evaluate the performance of the parallel pipe subsurface system installed in farmers’ field at Sembari village, Lalgudi Taluk, Trichy District, Tamil Nadu in a waterlogged paddy field from October 2020 to February 2021. The field experiment was conducted with the combination of three lateral drain spacing (7.5, 10.0 and 12.5 m) and two drain depths (60 and 80 cm). 63 mm PVC perforated pipes wrapped with coir envelope were laid as lateral drains at a grade 0.3%. Inspection chambers connected with collector drains laid at a grade of 0.6% were used to measure the drain water discharge, observation wells installed midway between lateral pipes drains were used for measuring the depth to groundwater level. Hydraulic properties of soil, depth to water level, discharge collected in drain pipe were used as evaluation parameters. This study revealed that soil hydraulic conductivity had been increased to 30%, pH, EC and ESP has been reduced to 12, 54 and 20%, respectively. The system has performed well to alleviate the waterlogged condition in 7.5 m lateral drain spacing and 80 cm drain depth treatment by observing the higher rate of decrease in depth to water of 0.3 to 0.4 m and a drainage coefficient of 0.069 to 0.29 cm/day.

scholarly journals Performance of Sugar Beet (Beeta vulgaris) to Different Dates of Sowing under Temperature Regime

2019 ◽  
pp. 1-12 ◽  
Author(s):  
Kumar D. Lamani ◽  
S. I. Halikatti
Keyword(s):  
Sugar Beet ◽  
Field Experiment ◽  
Temperature Regime ◽  
Agricultural Research ◽  
Winter Season ◽  
Quality Parameters ◽  
Research Station ◽  
Yield Attributes ◽  
Main Plot ◽  
Sugar Beet Crop

Field experiment was undertaken during 2005-06 to 2006-07 to study the various agro-techniques for sugar beet cultivation for Northern Karnataka at Agricultural Research Station, Bailhongal, Belgaum district (Karnataka) under irrigated condition. The experiment consisted of 24 treatment combinations comprising of sugar beet dates of sowing and cultivars. Design of the experiment was split plot having date of sowing as main plot and genotypes as subplots. Among the 12 different dates of sowing, higher yield and yield attributes were observed in sowing at October I fortnight compared to the rest of the treatments and between the two sugar beet genotypes, Cauvery recorded significantly higher yield and yield attributes than Indus. Similar trend was followed for quality parameters also. Sowing of sugar beet crop either in winter season or monsoon gave higher yield and sowing in April month was not suitable as it gave very low yields.

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