Effects of Irrigation Scheduling and Nitrogen Levels on Soil Nutrient and Their Uptake in Radish (Raphanus Sativus L.) in Mid Hills of North-Western Himalayas, India

• Published in: Communications in Soil Science and Plant Analysis Vol. 54; no. 16; pp. 2274 - 2285
• Main Authors: Sharma, Archana, Sharma, J C, Gautam, Krishan Lal
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis 08-09-2023; Taylor & Francis Ltd
• Subjects: Experimental farms; Fertility; Groundwater; Groundwater pollution; Horticulture; Irrigation; Irrigation effects; Irrigation scheduling; Limiting factors; Loam soils; Nitrogen; Nutrient availability; Nutrient loss; Nutrient status; Nutrient uptake; nutrient use efficiency; Radishes; Raphanus sativus; Sandy loam; Sandy soils; Schedules; Soil; Soil degradation; soil fertility; Soil nutrients; Soil pollution; Soil water; Soils; Sulfur; Sulphur; Uptake; Water pollution; Water resources; Water scarcity
• ISSN: 0010-3624; 1532-2416; 1532-4133
• DOI: 10.1080/00103624.2023.2212000

Irrigation and N are the main two limiting factors for the radish growth and soil nutrient pool. Inappropriate irrigation and nitrogen application can negatively affect the soil nutrient status and accelerate nutrient losses which can lead to ground water pollution and soil degradation. In this study, four irrigation schedules viz. I
0
(no irrigation), I
1
-IW/CPE = 0.8, I
2
-IW/CPE = 1.0, I
3
-IW/CPE = 1.2 and three N levels i.e. N
0
(no N application), N
1
(75% RDN) and N
2
(100% RDN) were evaluated and replicated thrice in a RBD (factorial) during 2016-17 and 2017-18 at experimental farm of Dr YSP University of Horticulture and Forestry Nauni, Solan (HP), on sandy loam soil. Results revealed that irrigation and nitrogen levels had a significant effect on soil nutrient contents and maximum available N, P contents were observed under N
2
I
1
, N
0
I
0
respectively, while available K, Ca, Mg and sulfate sulfur were highest under N
2
I
3.
Nutrient uptake significantly enhanced with increase in irrigation and N levels due to their solubilility and mobility. Lowest values were recorded under control. Nitrogen use efficiency decreased with increase in nitrogen levels. Results of study could be highly supportive in selecting appropriate irrigation schedule (I
3
) and N (100% RDN) level for fertility and efficient management of scarce water resources.