Assessment of Nitrogen Content, Uptake, Partitioning, and Recovery by Cotton Crop Grown under Surface Irrigation and Drip Fertigation by using Isotopic Technique

Field experiments were carried out during two seasons (August-February) of 2011-12 and 2012-13 at Millet Breeding Station, Tamil Nadu Agricultural University, Coimbatore, to study the effect of drip fertigation on productivity, water use and water use efficiency of pigeonpea (Cajanus cajan) cv. LRG 41. The treatments included three irrigation regimes (50 %, 75 %, 100 % computed water requirement of crop) and surface irrigation along with three fertilizer levels with water soluble fertilizer (WSF) and conventional fertilizers (CF). The treatments were laid out in Randomized Block Design with three replications. The results revealed that drip irrigation at 100 % WRc with fertigation at 125 % RDF through WSF registered significantly highest grain yield of 2812 and 2586 kg ha-1 during 2011-12 and 2012-13, respectively. Surface irrigation with conventional method of fertilizer application recorded lower water use efficiency of 3.70 and 3.38 kg ha-1 mm-1 whereas it was reverse with drip irrigation of 100 % WRc + 125 % RDF through WSF with a WUE of 6.97 kg ha-1 mm-1 during 2011-12 and during second season (2012-13), the highest WUE of 6.72 kg ha-1 mm-1 was recorded in drip irrigation at 50 % WRc along with fertigation at 125 % RDF through WSF. The increase in grain yield with drip irrigation at 100 % WRc + fertigation with 125 % RDF through WSF was mainly attributed by greater and consistent availability of soil moisture and nutrients which resulted in better crop growth, yield components and ultimately reflected on water use efficiency and yield of pigeonpea Cajanus cajan.

Download Full-text

Nutrient Use and Yield of Banana as influenced by Fertigation

Agropedology ◽

10.47114/j.agroped.2017.dec12 ◽

2019 ◽

Vol 27 (2) ◽

Author(s):

K.D. Kale ◽

◽

D.D. Pawar ◽

U.S. Surve ◽

S.S. Jadhav ◽

...

Keyword(s):

Nutrient Availability ◽

Drip Irrigation ◽

Nutrient Use Efficiency ◽

Water Soluble ◽

Growth Stages ◽

Surface Irrigation ◽

Nutrient Use ◽

Use Efficiency ◽

Crop Growth Stage ◽

Drip Fertigation

A field experiment was conducted during 2010-2011 in medium deep clay soils at the Research Farm of Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra to find out the effect of drip fertigation on yield and nutrient use efficiency of banana (cv. Grand naine). The treatments comprised of 100, 80 and 60 % recommended dose (RD) of fertilizer applied through drip in two schedules (Schedule A-equal, Schedule B crop growth stage), drip irrigation with only N through drip, drip with conventional fertilizers through soil and surface irrigation as control. The drip irrigation increased banana yield by 59.6 per cent and saved fertilizer to the tune of 40 per cent .The treatment comprising of 100 % RD of fertigation (schedule B) had maximum banana yield (81.84 t ha-1) over surface irrigation (51.26 t ha-1), however, it was at par with 100 % RD of fertigation in uniform 16 splits and 80 % RD of fertigation. Application of water soluble fertilizers through drip resulted in highest nutrient availability than control. In general, 100 % RD had the highest nutrient availability than 80 % and 40 % RD of fertilizer. The nutrient availability was more in treatment in which fertilizers were applied as per growth stages (schedule B) than equal splits (schedule A). The uptake of nutrients was higher in fertigated treatments than other treatments

Download Full-text

The Cotton Crop

Scientific American ◽

10.1038/scientificamerican09171859-194a ◽

1859 ◽

Vol 1 (12) ◽

pp. 194-194

Keyword(s):

Cotton Crop

Download Full-text

The Last Cotton Crop

Scientific American ◽

10.1038/scientificamerican10201860-267a ◽

1860 ◽

Vol 3 (17) ◽

pp. 267-267

Keyword(s):

Cotton Crop

Download Full-text

Poultry Manure as a Fertilizer

EDIS ◽

10.32473/edis-aa205-2013 ◽

2013 ◽

Vol 2013 (11) ◽

Cited By ~ 1

Author(s):

Michael A. Davis ◽

Doug R. Sloan ◽

Gerald Kidder ◽

R. D. Jacobs

Keyword(s):

Organic Matter ◽

Environmental Factors ◽

Nitrogen Content ◽

Soil Amendment ◽

Poultry Manure ◽

Nutrient Retention ◽

High Nitrogen Content ◽

High Nitrogen ◽

Animal Science ◽

Fact Sheet

Animal manures have been used as natural crop fertilizers for centuries. Because of poultry manure’s high nitrogen content, it has long been recognized as one of the most desirable manures. Besides fertilizing crops, manures also supply other essential plant nutrients and serve as a soil amendment by adding organic matter, which helps improve the soil’s moisture and nutrient retention. Organic matter persistence will vary with temperature, drainage, rainfall, and other environmental factors. This 2-page fact sheet was written by Michael A. Davis, D.R. Sloan, Gerald Kidder, and R.D. Jacobs, and published by the UF Department of Animal Science, November 2013. http://edis.ifas.ufl.edu/aa205

Download Full-text