Andersson Daniel Steffler, Eduardo Canepelle, Rodrigo Rotili Junior, Marciel Redin
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引用次数: 1
摘要
甘薯(Ipomoea batatas)因其质朴性和广泛的气候适应性而具有文化、社会和经济重要性,在巴西被种植为人类和动物食品。然而,种植主要是在不施肥的情况下进行的,并使用克里奥尔品种。目的是评价在施鸡粪和不施鸡粪的情况下甘薯品种根系的产量和品质。试验于2015/16和2016/17两季在田间条件下进行,采用随机区组设计,3个重复,地块面积6 m2。选用BRS Rubissol、BRS amsamulia、BRS Cuia和Crioula 4个甘薯品种。对根系生产力、根系数量、根系长度、根系直径、断裂根系进行了评价。在两种栽培条件下,脱毒品种Rubissol、amsamulia和Cuia的平均根产量分别为43,941、45,498和52,095 kg ha-1,高于Crioula品种的3,389 kg ha-1。鸡粪施肥不会增加产量、根的数量、长度和直径,但会增加断裂根的数量。无肥脱毒甘薯栽培可使根裂率平均降低51.4%。
Productivity and quality of sweet potato roots cultivation with and without chicken manure
Sweet potato (Ipomoea batatas) has cultural, social and economic importance due to its rusticity and wide climate adaptation, being cultivated in Brazil for human and animal food. However, cultivation is carried out mainly without fertilization and with Creole cultivars. The objective was to evaluate the yield and quality of roots of sweet potato cultivars with and without fertilization of chicken manure in an Oxisol. The experiment was carried out under field conditions in the 2015/16 and 2016/17 seasons in a randomized block design with three replications in 6 m2 plots. Four sweet potato cultivars, BRS Rubissol, BRS Amélia, BRS Cuia and Crioula, were used. Root productivity, number, length and diameter of roots, and cracked roots were evaluated. In both cultivation conditions, the virus-free cultivars Rubissol, Amélia and Cuia showed higher average root yields, 43,941, 45,498 and 52,095 kg ha-1, respectively, compared to the Crioula cultivar with 3,389 kg ha-1. Fertilization with chicken manure does not increase the productivity, number, length and diameter of roots, but it does increase the number of cracked roots. The cultivation of virus-free sweet potato without fertilizer reduces cracked roots by an average of 51.4%.