Yield, Quality Components, and Nitrogen Levels of Silage Corn Fertilized with Urea and Zeolite

被引：22

作者：

de Campos Bernardi, Alberto C. ^{[1
]}

de Souza, Gilberto Batista ^{[1
]}

Polidoro, Jose Carlos ^{[2
]}

Perdigao Paiva, Paulo Renato ^{[3
]}

de Mello Monte, Marisa Bezerra ^{[3
]}

机构：

[1] Embrapa Pecuaria Sudeste, BR-13560970 Sao Carlos, SP, Brazil

[2] Embrapa Solos, Rio De Janeiro, Brazil

[3] Ctr Tecnol Minerais CETEM, Rio De Janeiro, Brazil

来源：

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS | 2011年 / 42卷 / 11期

关键词：

Nitrogen; stilbite; Zea mays L; USE EFFICIENCY; CLINOPTILOLITE; MAIZE; GROWTH;

D O I：

10.1080/00103624.2011.571980

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The zeolite and urea mixture may be use to improve nitrogen (N)-use efficiency of silage corn. The objective of this study was to evaluate dry-matter yield and nutritional levels of N of silage corn fertilized with urea and zeolite mixture. The experimental design was a 2 x 4 x 4 factorial randomized block design with three replications. Treatments included two types of stilbite zeolite (natural and concentrated), four levels of nitrogen (0, 50, 100, and 200 kg ha-1), and four ratios of zeolite (25%, 50%, and 100% of N level). Treatments were applied 60 days after planting with the topdressing fertilization. The use of concentrated (650 g kg-1 of stilbite) or natural (470 g kg-1 of stilbite) zeolite with urea increased silage corn dry-matter production and leaf N concentrations.

引用

页码：1266 / 1275

页数：10