The Influence of Water Saving and Foliar Organic Fertilizer on Shallot Production in Dryland of NTB

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The Influence of Water Saving and Foliar Organic Fertilizer on Shallot
Production in Dryland of NTB

Ahmad Suriadi1*, Gungun Wiguna2, Lia Hadiawati1 and Moh. Nazam1
1Assesment Institute for Agricultural Technology. Jln. Raya Peninjauan Narmada,
Lombok Barat Regency, NTB, Indonesia
2Indonesian Vegetable Research Institute Lembang. West Java, Indonesia
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Dry land of semiarid climate in West Nusa Tenggara is potential area for shallot cultivation. However, its utilization has faced with various obstacles both physically   and   economically,   particularly   on   water   limiting   and   pest/disease controlling.. The objective of this research was to obtain the influence of water-saving and foliar organic fertilizer on the productivity of shallot in dry land of semiarid climate inWest Nusa Tenggara. The experiment was arranged by randomized block with split plot design. The main plot was irrigation types (sprinkler and farmers practice; furrow irrigation) and sub-plot was concentration of bio-urine as foliar organic fertilizer on 0 (control), 5%, 10% 15% and 20%. Data were analyzed using analysis of variance. The results showed that shallot productivity was influenced by the concentration of bio-urine application. Bio-urine at 15% concentration improved shallot yield from 19.7 tons/ha compared to control (30.7 tons/ha (wet weight)). Thus, bio-urine can increase yield about 63% compared to control. The optimum concentration of bio-urine to increase yield of shallot was 12% which applied 3 times every week at 20-45 days after planting. The amount of irrigation water during plant growth using sprinkler was 343.8 mm which was less than farmer practice (furrow irrigation) and 84% water saving. It was suggested  that  famers  may  apply  bio-urine  and  use  sprinkler  irrigation  system  to increase the yield of shallot in West Nusa Tenggata dryland.


Keywords:  shallot,  dryland,  bio-urine,  water  saving,  sprinkler  irrigation,  farrow irrigation.
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Indonesian Agricultural Environment Research Institute (IAERI)



A. Wihardjaka (1) and L.J. Wade (2)
(1)Research Station of Agricultural Environment Preservation

(2)International Rice Research Institute

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