Cover crops residue decomposition and nitrogen release in a cerrado soil

被引：100
作者：
Torres, JLR
Pereira, MG
Andrioli, I
Polidoro, JC
Fabian, AJ
机构：
[1] Ctr Fed Educ Tecnol Uberaba, BR-38045000 Uberaba, MG, Brazil
[2] Univ Fed Rio de Janeiro, Dept Solos, BR-23890000 Seropedica, RJ, Brazil
[3] Univ Estadual Paulista, Dept Solos & Adubos, BR-14884900 Jaboticabal, SP, Brazil
[4] Univ Fed Rio de Janeiro, Dept Fitotecn, BR-21941 Rio De Janeiro, Brazil
[5] Ctr Fed Educ Tecnol Uberaba, Uberaba, MG, Brazil
来源：
REVISTA BRASILEIRA DE CIENCIA DO SOLO | 2005年 / 29卷 / 04期
关键词：
cover crop; nitrogen recycling; grasses; legume; N mineralization;
D O I：
10.1590/S0100-06832005000400013
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
Dry mass production, decomposition rate and nitrogen (N) release were evaluated in a field experiment under seven cover crop types: pearl millet (Pennisetum americanum sin. typhoides), brachiaria grass (Brachiaria brizantha), sorghum (Sorghum bicolor L. Moench), pigeon pea (Cajanus cajan (L.) Mill sp), sunn hemp (Crotalaria juncea) and black oat (Avena strigosa Schreb), compared to a fallow and a traditional cropping system (control) in a cerrado soil (Uberaba-MG, Brazil). Among the tested cover crops, pearl millet and sunn hemp presented higher dry mass yield and nitrogen accumulation and release. Brachiaria grass had the highest decomposition rate and shortest half-life time. All crops reached the highest N liberation rate 42 days after desiccation.
引用
收藏
页码：609 / 618
页数：10
相关论文
共 31 条
  • [21] OLIVEIRA TK, 2001, PLANTAS COBERTURA CU
  • [22] Reicosky DC, 1998, J SOIL WATER CONSERV, V53, P224
  • [23] Rezende CD, 1999, NUTR CYCL AGROECOSYS, V54, P99
  • [24] THE EFFECTS OF MICROARTHROPODS ON LITTER DECOMPOSITION IN A CHIHUAHUAN DESERT ECOSYSTEM
    SANTOS, PF
    WHITFORD, WG
    [J]. ECOLOGY, 1981, 62 (03) : 654 - 663
  • [25] SCHUNKE RM, 1998, THESIS U FED RURAL R
  • [26] Silva MLN, 1997, PESQUI AGROPECU BRAS, V32, P649
  • [27] Souza W. J. O., 2001, Revista Brasileira de Ciencia do Solo, V24, P885, DOI 10.1590/S0100-06832000000400020
  • [28] Spagnollo E., 2002, Rev. Bras. Ciênc. Solo, V26, P417, DOI 10.1590/S0100-06832002000200015
  • [29] Tedesco MJ, 1985, B TECNICO SOLOS, V5
  • [30] DECOMPOSITION OF LEAF-LITTER FROM TROPICAL FORAGE GRASSES AND LEGUMES
    THOMAS, RJ
    ASAKAWA, NM
    [J]. SOIL BIOLOGY & BIOCHEMISTRY, 1993, 25 (10) : 1351 - 1361
1234