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Updated: Aug 17, 2025

Screening Cotton Genotypes for Reniform Nematode Resistance

Screening Cotton Genotypes for Reniform Nematode Resistance

Published on: May 2, 2019

Sub-surface drip fertigation improves seed cotton yield and monetary returns.

Kulvir Singh¹, Prabhsimran Singh¹, Manpreet Singh²

¹Regional Research Station, Punjab Agricultural University, Faridkot, Punjab, India.

Frontiers in Plant Science

|December 12, 2022

Summary

Sub-surface drip fertigation (SSDF) significantly improves seed cotton yield (SCY) and nitrogen use efficiency (NUE) while conserving water compared to traditional surface flood (SF) irrigation. SSDF at 80% crop evapotranspiration (ETc) with 112.5 kg N ha-1 is optimal for water-savvy cotton cultivation.

Keywords:

bio-physical water productivity drip fertigation economic water productivity nitrogen use efficiency surface flood method water use efficiency

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Reliable Method for Assessing Seed Germination, Dormancy, and Mortality under Field Conditions

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Published on: November 6, 2016

Area of Science:

Agricultural Engineering
Agronomy
Soil Science

Background:

Surface flood (SF) irrigation in cotton cultivation leads to substantial water wastage and nutrient leaching.
Efficient water management strategies are crucial for maintaining cotton yield while conserving scarce water resources.

Purpose of the Study:

To evaluate the efficacy of sub-surface drip fertigation (SSDF) against SF and surface drip fertigation (SDF) in cotton.
To assess the impact of SSDF on seed cotton yield (SCY), water productivity, and nitrogen use efficiency (NUE).

Main Methods:

A 2-year field investigation was conducted across two climatic regimes (Faridkot and Abohar).
Eight treatments were implemented using a randomized complete block design, including varying levels of sub-surface drip irrigation (SSDI) and nitrogen (N) fertigation.
Comparisons were made against SF and SDF controls, both receiving 100% recommended dose of nitrogen (RDN).

Main Results:

SSDF at 80% and 100% crop evapotranspiration (ETc) resulted in 18.7% and 21.1% higher SCY, respectively, compared to SF.
Water use efficiency was significantly higher under SSDF (76.5-78.8%) compared to SF (57.0%).
Optimal results for SCY and NUE were achieved with SSDF at 80% ETc and 112.5 kg N ha-1 (100% RDN), showing a 26.6% increase in SCY and 18.5% higher NUE over SF.

Conclusions:

Sub-surface drip fertigation (SSDF) offers a water-saving alternative to surface flood irrigation for cotton.
SSDF enhances seed cotton yield and nitrogen use efficiency, leading to improved economic returns for farmers.
The application of SSDF at 80% ETc with 112.5 kg N ha-1 is recommended for sustainable and productive cotton cultivation in northwestern India.