scholarly journals Response of chilli to drip irrigation on sandy clay loam soil under Madukkur soil series (Typic ustropept) in cauvery New Delta Zone

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 215-221
Author(s):  
S. Suganya
Keyword(s):  
Drip Irrigation ◽  
Rice Cultivation ◽  
Clay Loam ◽  
Soil Series ◽  
Clay Loam Soil ◽  
Sandy Clay Loam ◽  
Sandy Clay ◽  
Loam Soil ◽  
Cauvery Delta ◽  
Drip Fertigation

In Tamil Nadu, one of the most important agro-climatic zone dictating the total rice production is by Cauvery Delta zone. In Cauvery Delta zone the area under rice cultivation has been reduced drastically and this situation forms the base for a paradigm shift from rice cultivation to alternate crops that requires less amount of irrigation water. Suitable alternate cropping pattern plays an important role in improving the purchasing power of farmer with the help of inclusion of commercial crops in rice based cropping system. Chilli is an important spice cum vegetable crop cultivated extensively in India. This project is indented to study the fertigation system in one of promising alternate crops in chillies in rice ecosystem. By keeping all these points in view, the present investigation was undertaken to study the response of chilli to drip irrigation on sandy clay loam soil under Madukkur soil series (Typic Ustropept) in cauvery new delta zone. Field experiment was conducted at Soil and Water Management Research Institute, Kattuthottam, Thanjavur financially supported by Department of Science and Technology under SERB programme with a budget outlay of Rs. 13.0 lakhs for three years during 2012-2015 in strip plot design with four replications. The results revealed that Sub surface drip fertigation at 10 cm depth recorded the maximum plant height, number of branches, number of flowers and number of fruits at B2 irrigation regime (IW/CPE = 0.75). Total green chillies yield was higher under sub surface drip fertigation @ 10 cm depth at IW/CPE=1 (15.59 t ha-1) followed by surface drip fertigation at IW/CPE = 0.75 (13.50 t ha-1) and sub surface drip fertigation @ 10 cm depth at IW/CPE = 0.75 (11.17 t ha-1).Thus, introduction of chillies as an alternate crop under sub surface drip fertigation @ 10 cm depth technology during January under Broad bed furrow method of cultivation paves the way for improving the social security to the rice farmers.

Degradation of oxyfluorfen in sandy clay loam soil

2020 ◽  
Vol 8 (6) ◽  
pp. 1038-1041
Author(s):  
C Bharathi ◽  
P Murali Arthanari ◽  
C Chinnusamy
Keyword(s):  
Clay Loam ◽  
Clay Loam Soil ◽  
Sandy Clay Loam ◽  
Sandy Clay ◽  
Loam Soil

Managing organic carbon of sandy clay loam soil with organic amendments to promote particle aggregation

2021 ◽  
Vol 14 (4) ◽  
Author(s):  
Haroon Shahzad ◽  
Muhammad Iqbal ◽  
Noman Latif ◽  
Muhammad Arshad Khan ◽  
Qudrat Ullah Khan
Keyword(s):  
Organic Carbon ◽  
Organic Amendments ◽  
Particle Aggregation ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Sandy Clay Loam ◽  
Sandy Clay ◽  
Loam Soil

scholarly journals Modeling phosphorus distribution under different fertigation strategies in onion (Allium cepa L.) crop

2017 ◽  
Vol 9 (2) ◽  
pp. 720-729
Author(s):  
Sanjay T. Satpute ◽  
Man Singh
Keyword(s):  
Soil Moisture ◽  
Nutrient Dynamics ◽  
Moisture Distribution ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Nutrient Distribution ◽  
Sandy Clay Loam ◽  
Phosphorus Distribution ◽  
Sandy Clay ◽  
Loam Soil

The understanding of soil and nutrient dynamics under drip fertigation is relevant for crop production as well as water and nutrient management. The aim of this study was to generate information about the distribution of phosphorus (P) under different fertigation strategies for onion production on sandy clay loam soil during 2007-2008 to 2008-2009. The study involved field experiment, laboratory analysis and modeling of P distribution. The phosphorus distribution data in the field were collected, analyzed and used to calibrate and validate the solute transport model HYDRUS-2D for sandy clay loam soil. The performance of HYDRUS-2D was evaluated by comparing its simulated values with the observed values of soil moisture and nutrient concentration. The coefficient of determination (R2), root mean square error (RMSE) and mean absolute error (MAE) were used as model performance indicators. The range of R2 between 0.72-0.99 for water as well as nutrient distribution indicates good correlation between the observed and simulated values. The MAE and RMSE values for water and nutrient distribution were in between 0.0009 to 0.0039 which indicated the accuracy of the model. From these results, it can be concluded that the model is performing well for predicting the P concentration in the soil as well as the soil moisture distribution for onion crop grown under sandy clay loam. The model was also validated for water and phosphorus distribution with the observed values at the end of the crop season and found to be performing well. The HYDRUS-2D model may be used to carry out simulations for different soil types and with different fertigation and irrigation strategies for developing guidelines.

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