Floração de Helianthus annuus L. com adubação NPK e conteúdo de água disponível no solo

Journal of Bioenergy and Food Science Pub Date : 2016-09-30 DOI:10.18067/JBFS.V3I3.94

Vinícius Batista Campos, L. Chaves, H. Guerra

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引用次数: 1

Abstract

The production of flowers and ornamental plants is an activity that has achieved great economic importance in several Brazilian states however in Paraiba State is little explored, which is intended to leverage with fertilization and water management. A trial was carried out in a greenhouse located at the Federal University of Campina Grande, in Campina Grande, Paraiba State, Brazil, with sunflower, cv Embrapa 122 V2000, in order to evaluate the effects of nitrogen, phosphorus, potassium and available soil water on the flowering this oil crop. A completely randomized design with 11 treatments originated from a baconian matrix was adopted. Reference doses were 60:80:80 kg ha-1 of N:P 2 O 5 :K 2 O, respectively and four available soil water (55, 70, 85 and 100% AW) in triplicate. Stem growth, head external and internal diameter and number of petals were measured when the flowers were fully open. While not affecting the number of petals, the highest percentage of available soil water promoted better benefit to the inflorescence of sunflower. Doses of 60 kg ha -1 N; 80 kg ha -1 P 2 O 5 e 80 kg ha -1 K 2 O provided better quality inflorescences.

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氮磷钾施肥和土壤有效水分含量对向日葵开花的影响

花卉和观赏植物的生产是一项在巴西几个州取得重大经济意义的活动，但在帕拉伊巴州却很少进行探索，其目的是利用施肥和水管理。在巴西帕拉伊巴州坎皮纳格兰德联邦大学的温室内进行了一项试验，试验用向日葵，cv Embrapa 122 V2000，以评估氮、磷、钾和有效土壤水分对这种油料作物开花的影响。采用基于培根矩阵的11个处理的完全随机设计。参考剂量分别为60:80:80 kg hm -1 N: p2o: k2o和4种有效土壤水分(55%、70%、85%和100% AW)，分3份。当花完全开放时，测量茎生长、头外径、内径和花瓣数。在不影响花瓣数量的情况下，土壤有效水分最高百分比对向日葵花序有更好的促进作用。剂量为60 kg / h -1 N;80kg / h - p2o和80kg / h - k2o的花序质量较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Bioenergy and Food Science

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