Sward characteristics and herbage accumulation of Tanzania grass submitted to sward heights

被引：10

作者：

do Canto, Marcos Weber ^{[1
]}

Jobim, Cloves Cabreira ^{[1
]}

Gasparino, Eliane ^{[1
]}

Hoeschl, Andre Ricardo ^{[1
]}

机构：

[1] Univ Estadual Maringa, Dept Zootecn, BR-87020900 Maringa, Parana, Brazil

来源：

PESQUISA AGROPECUARIA BRASILEIRA | 2008年 / 43卷 / 03期

关键词：

Panicum maximum; canopy height; morphological components; grazing management;

D O I：

10.1590/S0100-204X2008000300019

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The objective of this experiment was to evaluate different sward height (20,40, 60 e 80 cm) in Tanzania grass (Panicum maximum Jacq.) pastures managed under continuous stocking. The animals used were Nellore steers, and the control of sward height was done with put-and-take techniques. Evaluations were made for: forage mass, green leaf mass, leaf:stem ratio, morphological composition and dry matter accumulation rate. The experimental design was completely randomized with two replications. Forage mass increased linearly with sward height with overall mean of 2,767, 3,105, 3,657 and 4,436 kg ha(-1) at sward heights 20, 40, 60 and 80 cm, respectively. Rates of dry matter accumulation decreased with increasing sward heights and were 104, 108, 90 and 81 kg ha(-1) per day for sward heights 20,40,60 and 80 cm, respectively. Leaf:stem ratio decreased linearly with sward heights. Tanzania grass pastures, under continuous stocking, should be managed between 40 and 60 cm heights in the final of spring and during summer station.

引用

页码：429 / 435

页数：7

共 34 条

[1]

Almeida E.X., 2000, REV BRAS ZOOTECN, V29, P1288, DOI [10.1590/S1516-35982000000500005, DOI 10.1590/S1516-35982000000500005]

[2]

[Anonymous], SAS US GUID STAT

[3]

[Anonymous], REV BRASILEIRA ZOOTE, DOI DOI 10.1590/S1516-35982000000500004

[4] Tanzania grass subjected to combinations of intensity and frequency of grazing [J].

Barbosa, Rodrigo Amorim ;

do Nascimento, Domicio, Jr. ;

Batista Euclides, Valeria Pacheco ;

da Silva, Sila Carneiro ;

Zimmer, Ademir Hugo ;

de Almeida Torres, Roberto Augusto .

PESQUISA AGROPECUARIA BRASILEIRA, 2007, 42 (03) :329-340

[5] Evaluation of three cultivars of Panicum maximum Jacq. under grazing:: Forage availability, post grazed stubble height and participation of leaves, stems, and dead material [J].

Brâncio, PA ;

Euclides, VPB ;

do Nascimento, D ;

da Fonseca, DM ;

de Almeida, RG ;

Macedo, MCM ;

Barbosa, RA .

REVISTA BRASILEIRA DE ZOOTECNIA-BRAZILIAN JOURNAL OF ANIMAL SCIENCE, 2003, 32 (01) :55-63

[6] GRAZED PASTURE PARAMETERS .2. PASTURE DRY-MATTER USE IN A STOCKING RATE AND GRAZING MANAGEMENT EXPERIMENT WITH DAIRY COWS [J].

CAMPBELL, AG .

JOURNAL OF AGRICULTURAL SCIENCE, 1966, 67 :211-+

[7]

Carnevalli RA, 2006, TROP GRASSLANDS, V40, P165

[8]

DA SILVA S.C., 2004, S MANEJO ESTRATEGICO, V2, P347

[9] MILK-PRODUCTION FROM COWS GRAZING ON TROPICAL GRASS PASTURES .1. EFFECTS OF STOCKING RATE AND LEVEL OF NITROGEN-FERTILIZER ON THE PASTURE AND DIET [J].

DAVISON, TM ;

COWAN, RT ;

SHEPHERD, RK ;

MARTIN, P .

AUSTRALIAN JOURNAL OF EXPERIMENTAL AGRICULTURE, 1985, 25 (03) :505-514

[10] Morphological responses of irrigated Tanzaniagrass (Panicum maximum jacq. cv. Tanzania-1) to grazing intensity under rotational stocking [J].

de Mello, ACL ;

Pedreira, CGS .

REVISTA BRASILEIRA DE ZOOTECNIA-BRAZILIAN JOURNAL OF ANIMAL SCIENCE, 2004, 33 (02) :282-289

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