ISSN 0976-4550  
DOI: 10.21276/Ijabpt  
 
 
 
Peer Reviewed Online International Journal of Applied Biology and Pharmaceutical Technology www.ijabpt.com
 

THE EFFECT OF DIFFERENT SOIL AMENDMENT ON IRRIGATION FREQUENCY, CROP YIELD, WATER USE EFFICIENCY OF SPINACH. Page No 12 to 18, Volume-8, Issue-1, Jan-Mar-2017   DOI: 10.21276/ijabpt.2017.8.1.2

G. Pragna, M.Jyothi, Neha Kunari, I. Bhaskar Rao

ABSTRACT: In coastal sandy soil water retention is poor and having high infiltration rate which results in the low yield. Soil amendment can be added to improve the water retention capacity and make water available at the root zone depth of crop and also improvises the crop yield significantly. This may decrease the amount of irrigation water hence thereby increases in irrigation interval. Field capacity was computed by field test method to decide the irrigation schedule. Two irrigation interval was selected i.e. 7 days irrigation interval and 10 days irrigation interval on the basis of 50% and 60% of soil moisture depletion as compared to the field capacity. Moisture retention in the soil is fundamental for crop growth and development. Soil water affects plant growth directly because it influences aeration, temperature, nutrient transport, uptake and transformation. Large pore spaces in sandy soils prevent water retention, make water dry out easily and escalates leaching of precious nutrients past plant roots, thus hindering plant growth.

Key words: Soil, Irrigation, Crop yield, Spinach

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