Phosphorus management for continuous corn-cowpea production in a Brazilian Amazon Oxisol
Material type:
ArticleLanguage: En Publication details: 1990ISSN: - 1435-0645|1435-0645 (Revista en electrónico)
- 0002-1962
- Agronomic characters AGROVOC
- America
- Application methods
- Cereals AGROVOC
- Cropping patterns
- Cropping patterns and systems
- Crops AGROVOC
- Cultivation AGROVOC
- Dicotyledons
- Economic plants
- Elements
- Environment
- Feed crops
- Feed grasses
- Fertilizers AGROVOC
- Fertilizing
- Genetic soil types
- Glumiflorae
- Grain crops AGROVOC
- Gramineae
- Grasses
- Industrial crops
- Inorganic compounds
- Leguminosae
- Methods
- Monocotyledons
- Nonmetals
- Oil crops
- Papilionoideae
- Phosphates
- Placement
- Plant propagation
- Plants
- Productivity AGROVOC
- Profitability
- Rosales
- Salts
- Site factors
- Soil types
- Soils
- South America
- Sowing AGROVOC
- Starch crops
- Sugar crops
- Vigna
- Yields AGROVOC
- 90-094613
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Article | CIMMYT Knowledge Center: John Woolston Library | AGRIS Collection | 90-094613 (Browse shelf(Opens below)) | 1 | Available | 90-094613 |
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Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0002-1962
Although Oxisols occupy extensive areas in the Amazon, few studies have addressed their fertilizer P requirements for sustained, long-term crop production. This field study was conducted to evaluate initial and long-term responses to P rates and placement by corn (Zea mays L.) and cowpea (Vigna unguiculata L.) when grown in annual rotation during five consecutive years in a Xanthic Hapludox (clayey, kaolinitic, isohyperthermic) near Manaus, Brazil. Effects on yields of sole broadcast P rates of 0, 22, 44, 88 and 176 kg ha-1 in split-plot combination with subplot banded P rates of 0, 11, 22 and 44 kg ha-1 were evaluated over 11 total crops. Banded P at 11 kg
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