MARC details
000 -LEADER |
fixed length control field |
03238nab a22005777a 4500 |
001 - CONTROL NUMBER |
control field |
39649 |
003 - CONTROL NUMBER IDENTIFIER |
control field |
CO-PlCIA |
005 - DATE AND TIME OF LATEST TRANSACTION |
control field |
20130510162151.0 |
040 ## - CATALOGING SOURCE |
Original cataloging agency |
CO-PlCIA |
Transcribing agency |
CO-PlCIA |
041 ## - LANGUAGE CODE |
Language code of text/sound track or separate title |
por |
050 ## - LIBRARY OF CONGRESS CALL NUMBER |
Classification number |
20391 |
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
fixed length control field |
120502t1982 000 0spor d |
100 ## - MAIN ENTRY--PERSONAL NAME |
Personal name |
ECHEVERRIA, L.C. |
245 ## - TITLE STATEMENT |
Title |
Fertilizacao em pastagens cultivadas: Estimacao da dose otima economica de fosforo |
300 ## - PHYSICAL DESCRIPTION |
Extent |
p. 51-58 |
520 ## - SUMMARY, ETC. |
Summary, etc |
Se presenta una aplicacion del modelo "Decide" para estimar la curva de respuesta de una pradera de Brachiaria decumbens a la fertilizacion con P, para determinar la dosis optima de P en un sistema de engorde de bovinos. La relacion entre la cantidad de P aplicada y el rendimiento en MS se ajusto con una funcion exponencial de Mitscherlich Y = A (1 - Be-CX), donde Y = produccion de carne (kg peso vivo/ha); A = max. rendimiento con P no limitante; B = respuesta del suelo a la aplicacion de fertilizante (superfosfato simple: 0, 86, 345 y 1380 kg P/ha) (0 B 1); C = forma de la curva de respuesta; X = dosis de fertilizante por estimar. La produccion de carne a los 12 meses fue de 73, 152, 347 y 430 kg peso vivo/ha para las dosis resp. de P. La dosis de 240 kg de P/ha es la que da la max. rentabilidad liquida, con una produccion de 362 kg de peso vivo/ha u 84 por ciento de la produccion max. El analisis indico que parece no haber sensibilidad en la dosis de P para variaciones de precio del P o de la carne. Las principales limitaciones del trabajo se refieren a la transformacion de la MS en carne; se recomienda en futuros trabajos que la respuesta al fertilizante sea medida directamente en los animales. Otra limitacion se refiere al efecto residual del P en diversos tipos de suelo. (CIAT) |
-- |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Brachiaria decumbens |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Fertilizantes |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
P |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Rendimiento |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
MATERIA SECA |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Produccion de carne |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Modelos matematicos |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Economia |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Brasil |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Brachiaria |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Gramineas |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
MINERALES Y NUTRIMENTOS |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
CARACTERISTICAS AGRONOMICAS |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Produccion animal |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Análisis económico |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
AMERICA DEL SUR |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Plantas |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
AMERICA |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
ANALISIS |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
COMPOSICION QUIMICA |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
METODOS ANALITICOS |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Requerimientos nutricionales |
9 (RLIN) |
spa |
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Requerimientos nutricionales (Plantas) |
9 (RLIN) |
spa |
653 ## - INDEX TERM--UNCONTROLLED |
Uncontrolled term |
Forage |
-- |
spa |
653 ## - INDEX TERM--UNCONTROLLED |
Uncontrolled term |
Articles in proceedings |
-- |
spa |
653 ## - INDEX TERM--UNCONTROLLED |
Uncontrolled term |
Artículos en memorias |
-- |
spa |
653 ## - INDEX TERM--UNCONTROLLED |
Uncontrolled term |
Forrajes |
-- |
spa |
653 ## - INDEX TERM--UNCONTROLLED |
Uncontrolled term |
Serial book chapters |
-- |
eng |
700 ## - ADDED ENTRY--PERSONAL NAME |
Personal name |
COSTA, F.P. |
700 ## - ADDED ENTRY--PERSONAL NAME |
Personal name |
GARDNER, A.L. |
773 ## - HOST ITEM ENTRY |
Title |
In: Boock, Araê; Gardner, Andrew L. (eds.). Seminario sobre Nutriçao de Plantas Forrageiras em Solos Tropicais Acidos (1979, Campo Grande, Brasil). [Trabajos presentados] |
Place, publisher, and date of publication |
Brasília, BR, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Departamento de Informaçao e Documentaçao, 1982 |
Series data for related item |
Documentos 3 |
998 ## - Data Base |
DataBase |
CATAL |
998 ## - Data Base |
DataBase |
PASTOS |
942 ## - ADDED ENTRY ELEMENTS (KOHA) |
Source of classification or shelving scheme |
Library of Congress Classification |
Koha item type |
Book Chapters |