Data/hora: 01/06/2024 08:09:18

Biblioteca(s): | Embrapa Meio-Norte.
Data corrente: | 14/04/1997
Data da última atualização: | 14/04/1997
Autoria: | SENTHONG, C.; PANDEY, R. K.
Título: | Response of five food legume crops to an irrigation gradient imposed during reproductive growth.
Ano de publicação: | 1989
Fonte/Imprenta: | Agronomy Journal, v. 81, n. 4, p. 680-686, Jul./Aug., 1989.
Idioma: | Inglês
Conteúdo: | Food legumes, an excellent source of protein and soil fertility improvement, offer small farmers a means of intensifying cropprin on rice lands in semiarid and tropical regions. Unfortunately food legume productivity is often limited by variation in the amount and distribution of rainfall. The study was conducted to compare differential responses of mungbean (Vigna radiata L.), soybean [Glycine max (L.) Merr.], cowpea [Vigna unguiculata (L.) Walp.] peanut (Arachis hypogaea L.), and pigeonpea (Cajanus cajan L.) to a soil water gradient imposed during the reproductive growth phase. Field studies were conducted on Lipa clay loam, an isohyperthemic Typic Hapludoll silt loam soil, using a line source sprinkler irrigation system at the International Rice Research Institute, Philippines, from January to May during 1985 and 1986. Among the five species, peanut yielded significantly higher across the irrigation regimes in both years. Lack of water in the driest regime (50% water deficit replacement) reduced the seed yield of mungbean, soybean, cowpea, and peanut by an average of 43, 39, 34, and 32%, respectively. However, pigeonpea seed yield increased by an average of 31% in the driest regime. Seed yield increases per mm of total irrigation water plus rainfall were 3.46 and 5.61 kg ha-1 in soybean, and 3.55 to 5.67 kg ha-1 in peanut in 1985 and 1986, respectively. However, pigeonpea yield per mm of total irrigation water plus rainfall declined 1.53 and 1.27 kg ha-1 in 1985 and 1986, respectively.
Palavras-Chave: | Arachis hypogoea; Caupi; Cowpea; Peanut; Soybean.
Thesagro: | Amendoim; Glycine Max; Irrigação; Soja; Vigna Unguiculata.
Thesaurus Nal: | Vigna radiata.
Categoria do assunto: | --
Registro original: | Embrapa Meio-Norte (CPAMN)
Exemplares: | CPAMN - (5353-1) - ADC - SP - -- - S 10669 -  - S 10669 - DIS