Spatial Fertilizer Recommendation Mapping Based on Soil Test Crop Response Equations for Important Crops Using GIS and GPS

Soil health, food security, and environmental quality are the major problems faced by Indian agriculture. Soil nutrient variability is the big hurdle to higher crop productivity. The location-specific collective information of soil nutrient status should be generated. The soil test crop response equ...

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Bibliographic Details
Published in:Communications in Soil Science and Plant Analysis 2021-01, Vol.52 (1), p.58-75
Main Authors: Raddy, Gurunath, B. S., Lalitha, H. M., Jayadeva
Format: Article
Language:English
Subjects:
Agricultural production
Cereal crops
Crop production
Crop yield
Crops
Environmental quality
Fertilizers
Food quality
Food security
Geographical Information system
Geographical information systems
geographical positioning system
Interpolation
Mineral nutrients
Nutrient status
Nutrients
Potatoes
Soil
Soil fertility
Soil surfaces
soil test crop response and Arc-GIS
Soil testing
Soils
Thematic mapping
Watersheds
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Summary:Soil health, food security, and environmental quality are the major problems faced by Indian agriculture. Soil nutrient variability is the big hurdle to higher crop productivity. The location-specific collective information of soil nutrient status should be generated. The soil test crop response equation embedded with fertilizer recommendation maps saves a major amount of plant nutrients applied to achieve the targeted yield. ArcGIS platform provides location-specific real-time thematic maps for the nutrient recommendations. Using GPS tool we collected 100 composite surface soil samples in Hanjihalli micro watershed, Hassan, Karnataka (India) and mapped nutrient recommendations for target yield in the GIS platform. The ready reckoner nutrient tables and nutrient recommendation maps were developed using interpolation technique for selected major grown field crops viz., maize, rice, ragi, and potato. The nutrient thematic maps will save a large amount of fertilizer for the specific target yield set up by the farmer.
ISSN:0010-3624
1532-2416
1532-4133
DOI:10.1080/00103624.2020.1849259