Effect of Method, Levels and Time of Potassium Fertigation on Available potassium during the Growing Season of Tomato(Lycopersicon esculentum Mill) | ||
| Basrah Journal of Agricultural Sciences | ||
| Article 9, Volume 27, Issue 2, December 2014, Pages 98-111 PDF (0 K) | ||
| DOI: 10.33762/bagrs.2014.111776 | ||
| Authors | ||
| Abd Almahdi S. Al-Ansari; Mohammed A. Abdulkreem; Amin H. Jabal | ||
| Abstract | ||
| A field experiment was conducted during the growing season of 2013-2014 of tomato grown under plastic house the study effect of Potassium Fertigation on available K in soil. Potassium (K2SO4)as source of potassium was added at rates of 0,100,200,300,400 and 500 kg ha-¹ at four methods(conventional method, 50% to soil +50% fertigation, equal doses method divided at seven dosed and fertigated to plant with (12) days intervals and according to plant growth stage. Soil sample (0-30 cm) were collected at five stage of plant growth (50% flowering ,50% fruitage ,50% maturity ,full maturity and at end of season). available K was determined. Result showed that applied K as fertigation according to plant growth stage or 50% to soil +50% fertigation resulted in highest available K in soil compared with other application. Result also that K concentration in soil increased with increasing K rate. Highest K concentration in soil (317.63gm kg-¹soil)found at growth 50% fruitage at rate of 500kg K ha. | ||
| Keywords | ||
| level and method of K; Fertigation; available K; tomato | ||
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