Upland rice yield as affected by Brachiaria coverage management
نویسندگان
چکیده
منابع مشابه
Interpreting Upland Rice Yield and Pratylenchus zeae Relationships: Correspondence Analyses.
Correspondence analyses were used to explore the relationships between yield and populations of Pratylenchus zeae in an upland rice field and in a greenhouse experiment. Initial soil (Pi) and final root (Pf) population densities of P. zeae, and yield (Y) of rice cv. UPL Ri5 were determined at 490 spots in the field. Very low Y was linked to very high Pf. Low Y was linked to medium or high Pi an...
متن کاملInterpreting Upland Rice Yield and Prafylenchus zeae Relationships: Correspondence Analyses'
Correspondence analyses were used to explore the relationships between yield and populations of Pratjlenchus zeae in an upland rice field and in a greenhouse experiment. Initial soil (Pi) and final root (Po population densities of P . zeae, and yield (Y) of rice CV. UPL Ri5 were determined at 490 spots in the field. Very low Y was linked to very high Pf. Low Y was linked to medium or high Pi ai...
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Abstract. Large quantities of N fertilizers may be lost in rice fields by nitrification-denitrification. In this connection, experiments were carried out in order to compare the effects from slow-release N-fertilizers (ISODUR) and products integrated with diciandiamide (DCD), a nitrification inhibitor, with the N splitting method applied in two or three times on the rice growth and yield. The e...
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Limited information is available on the effect of residues rates and slope direction on dryland wheat (Triticum aestivum L.) yield. This study was carried out to determine the effects of residues rates and tillage direction on grain yield and yield components of the Sardary wheat in a dryland region in Zanjan. Five wheat residues rates (0, 25, 50, 75 and 100% surface cover) were applied and i...
متن کاملUpland Rice and Allelopathy
Upland rice (Oryza sativa L.) is mainly grown in Asia, Africa and Latin America. Yield potential of upland rice is quite low and invariably this crop is subjected to many environmental stresses. Further, when upland rice is grown in monoculture for more than two to three years on the same land, allelopathy or autotoxicity is frequently reported. Allelopathy involves complex plant and plant chem...
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ژورنال
عنوان ژورنال: Revista Brasileira de Engenharia Agrícola e Ambiental
سال: 2015
ISSN: 1415-4366
DOI: 10.1590/1807-1929/agriambi.v19n1p15-20