K. N. Raja Kumar

Modeling Nitrogen Dynamics in Maize under Drip Fertigation Using the HYDRUS Model: A Calibration and Validation Approach

K. N. Raja Kumar, A. Mani, G. Ravi Babu & Ch. Sujani Rao · Journal of Experimental Agriculture International · 2025

Nutrient transport models simulate nutrient distribution in soil and help understand the relationship between nutrient application timing, crop uptake, yield, soil health, and groundwater pollution. Identifying a suitable model is crucial. A field experiment was conducted to mode...

Open access Research Article 10.9734/jeai/2025/v47i83684

Spatial and Temporal Distribution of Soil Moisture in Maize Using Frequency Domain Reflectometry Sensor

K. N. Raja Kumar, A. Mani, G. Ravi Babu & Ch. Sujani Rao · International Journal of Environment and Climate Change · 2024

Field experiment was conducted during kharif 2018, rabi 2018-19 and kharif 2019 at Department of Soil Water Engineering, Dr. NTR College of Agricultural Engineering, Bapatla, Andhra Pradesh to study the spatial and temporal distribution of soil moisture in maize using FDR sensor....

Open access Research Article 10.9734/ijecc/2024/v14i34074

Development of Dibble Mechanism for Tractor Operated Two Row Semi – Automatic Vegetable Transplanter

K. Venkatesh, B. Raj Kiran, A. Srinivasa Rao & K. N. Raja Kumar · Asian Journal of Agricultural Extension, Economics & Sociology · 2023

Vegetables play a crucial role in daily human nutrition, and India ranks second in vegetable production globally. Despite this, manual transplantation is prevalent in India, characterized by labor-intensive practices. The study aimed to address this by developing a tractor-operat...

Open access Research Article 10.9734/ajaees/2023/v41i122322