Received: 26-02-2020
Accepted: 22-06-2020
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Influence of Nitrogen Fertilizer Rate on the Growth and Yield of Ly Son Garlic (Allium sativumL.) Plants in Sandy Soil at Quang Dien Commune, Thua Thien Hue Province
,
Pham Thanh
1
Keywords
Ly Son garlic, growth, nitrogen fertilizer, yield
Abstract
Ly Son garlic (Allium sativumL.) is a high economic value crop. This is one of the first reports to evaluate the effect of nitrogen fertilizer application rate on the growth, development and yield of Ly Son garlic grown on the sandy soil inThua Thien Hue, Viet Nam. Four nitrogen fertilizer levelwere selected and tested in this study: 230kg N ha-1, 55kg N ha-1, 115kg N ha-1, 165kg N ha-1. Theresults showed that A. sativumwas suitable for growing and developing under the natural conditions of Thua Thien Hue. The growing duration of A. sativumranged from 120 to 145 days. Furthermore, the traditional fertilizer dosage (230kg N ha-1) gave the lowest yield;while, the nitrogen fertilizer level of 115kg N ha-1was the best treatment,which resulted inhigh yield and good growth in terms ofthe number of leaves per plant (6.1 leaves), pseudostem height (12.1cm), the weight of fresh bulb (5.73g), the weight of dry-bulb (0.45g) and the yield of A. sativum(6.03 t/ha), respectively. This result also demonstrated that the agro-biological characteristics, yield parameters such as bulb diameter and length, number of cloves per bulb of A. sativumplanted in that area have not been different comparing with the originally planted garlic grown in the areas of Ly Son, Quang Ngai province.
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