Distribution of the 'Prata Ana' root system in two urea fertirrigation frequencies

被引：10

作者：

Borges, Ana Lucia ^{[1
]}

Souza, Luciano da Silva ^{[1
]}

Bastos Peixoto, Cesar Augusto ^{[2
]}

Copquer dos Santos, Jorge Luis, Jr. ^{[2
]}

机构：

[1] Embrapa Mandioca & Fruticultura Trop, BR-44380000 Cruz Das Almas, BA, Brazil

[2] UFRB, Ctr Ciencias Agrarias & Ambientais, Cruz Das Almas, BA, Brazil

来源：

REVISTA BRASILEIRA DE FRUTICULTURA | 2008年 / 30卷 / 01期

关键词：

Musa spp; nitrogen; micro sprinkler direction; depth;

D O I：

10.1590/S0100-29452008000100048

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

The knowledge of the distribution of roots in bananas generates information that guide the location of water and fertilizers, resulting an increase in crop yield in banana plantations. The 'Prata Ana' banana root distribution system, in loam clay sandy Yellow Latosol, before harvest of the second cycle, was evaluated in two urea fertirrigation frequencies (400 kg of N/ha/year) every 3 days (F1) and 15 days (F2). Root samples were collected in different distances and depths with a metallic tube, separated from the soi I and quantified using the GSRoot software. Higher urea fertirrigation frequency (3 days) favored root density, in relation to the 15 days frequency. The amount of roots in the superficial layers (up to 0.30 m) was greater, decreasing with the depth, as well as for the plant in the direction of the micro sprinkler, and less in the opposite direction. Roots of diameter between 0.2 to > 1.5 mm prevailed in the superficial layers and beside the plant in the direction of the micro sprinkler.

引用

页码：259 / 262

页数：4