Nitrogen fertilization and agronomic characteristics in blackberry

被引：7

作者：

Pereira, Ivan dos Santos ^{[1
]}

Picolotto, Luciano ^{[1
]}

Messias, Rafael da Silva ^{[1
]}

Potes, Mariana da Luz ^{[1
]}

Correa Antunes, Luis Eduardo ^{[1
]}

机构：

[1] Embrapa Clima Temp, BR-96010971 Pelotas, RS, Brazil

来源：

PESQUISA AGROPECUARIA BRASILEIRA | 2013年 / 48卷 / 04期

关键词：

Rubus; vegetative growth; nitrogen; mineral nutrition; small fruits; yield; ARAPAHO THORNLESS BLACKBERRY; FIELD ESTABLISHMENT; HIGHBUSH BLUEBERRY; ALLOCATION; CULTIVARS; GROWTH; SYSTEM;

D O I：

10.1590/S0100-204X2013000400004

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The objective of this work was to evaluate the influence of increasing doses of nitrogen on vegetative growth, yield and leaf nutrient levels of blackberry (Rubus spp.). The experiment was carried out with the cultivars Tupy and Xavante, in southern state of Rio Grande do Sul, Brazil, from 2008 to 2012. It was used a randomized block design, with four replicates. Treatments consisted of five N doses (0.0, 7.5, 15.0, 22.5 and 30.0 g per plant), applied as maintenance fertilization after the crop establishment. The following variables were evaluated: cane density, pruned dry mass, chlorophyll index, yield, number of fruit, and nutritional composition of leaves for N, K, Ca, Mg and S. The fertilization treatments significantly influenced the vegetative growth, yield, and nutrient composition of leaves. The cultivars responded differently to nitrogen application, with 'Tupy' being more demanding than 'Xavante'. The currently recommended nitrogen rate for blackberry cultivation is suitable for maximum yield of 'Xavante', but it is not sufficient for 'Tupy'.

引用

页码：373 / 380

页数：8

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