Rain-fed fig trees response to supplemental irrigation timing and potassium fertiliser in micro-catchment
Due to the scarcity of water resources, low quality of available water, and drought occurrence, farmer's tendency to rain-fed farming is increased. In this study, the effect of supplemental irrigation (SI) timing in different months (Rain-fed, March, May, August, March + May) and potassium (K)...
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Published in | The journal of horticultural science & biotechnology Vol. 96; no. 6; pp. 738 - 749 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Taylor & Francis
02.11.2021
|
Subjects | |
Online Access | Get full text |
ISSN | 1462-0316 2380-4084 2380-4084 |
DOI | 10.1080/14620316.2021.1923409 |
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Summary: | Due to the scarcity of water resources, low quality of available water, and drought occurrence, farmer's tendency to rain-fed farming is increased. In this study, the effect of supplemental irrigation (SI) timing in different months (Rain-fed, March, May, August, March + May) and potassium (K) application at three rates either via foliar spray (0, 1.5 and 3 kg K 1000 L
−1
) or fertigation (0, 150, 250 g tree
−1
) on soil water balance and growth of rain-fed fig (Ficus carica L.) trees was investigated through a 3-year experiment. Results showed that SI would increase the soil water content, tree evapotranspiration, yield, shoot growth, shoot diameter, number of leaves in a new shoot, leaf width in a new shoot, number of inflorescences, and inflorescence diameter in rain-fed fig trees. Among the irrigation timing treatments, irrigation in March is the best time for the supplemental irrigation of rain-fed fig orchards in severe drought conditions to improve vegetative and generative traits. In addition, application of potassium at the rate of 150 g per tree through fertigation or 3 kg 1000 L water via foliar application is recommended to achieve the highest fruit production in rained fig orchards under drought conditions. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1462-0316 2380-4084 2380-4084 |
DOI: | 10.1080/14620316.2021.1923409 |