Potential Grain and Forage Production of Early Maturing Pigeonpea in the Southern Great Plains

Abstract

Forage‐based livestock production is a significant component of the agricultural economy throughout the southern U.S. Great Plains. However, Livestock production in grazing systems is limited by low forage mass and quality from late July to early November. Pigeonpea (Cajanus cajan L. Millsp.) is a warm‐season grain legume that may have potential as a summer forage crop. A 3‐yr (1996–1998) field study was conducted near El Reno, OK, to assess the performance of two early maturing pigeonpea lines, Georgia‐2 and ICPL 85010. The two lines did not differ significantly in forage and grain production and nutritive value. At 96 d after planting (DAP), total aboveground biomass was 5.2 Mg ha−1, N content was 23 g kg−1, and in vitro digestible dry matter (IVDDM) was 580 g kg−1 averaged across years. At final harvest (118 DAP), total dry biomass was 12.6, 6.4, and 9.3 Mg ha−1 in 1996, 1997, and 1998, respectively. Seed yield was 5.4, 1.9, and 1.2 Mg ha−1 in 1996, 1997, and 1998, respectively. Nitrogen concentration and IVDDM at final harvest was 19 and 585 g kg−1 for total plant biomass, 34 and 758 g kg−1 for leaves, 9 and 420 g kg−1 for stems, and 26 and 750 g kg−1 for seed, respectively. Early maturing pigeonpea lines can fill the forage deficit period during late summer and provide protein supplement for livestock.

Integração lavoura-pecuária: intensificação de uso de áreas agrícolas

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“…A qualidade do solo refere-se à sua capacidade de funcionar dentro dos limites de um ecossistema, sustentando o rendimento biológico, mantendo a qualidade do ambiente e promovendo a saúde de plantas e animais (DORAN & PARKIN, 1994;SINGER & EWING, 2000). Nesse contexto, a Integração Lavoura-Pecuária (ILP) pode auxiliar no alcance desses objetivos, já que pressupõe o uso contínuo das áreas agrícolas e a melhoria da qualidade do solo ao longo do tempo (ENTZ et al, 2002;RAO et al, 2003). A ILP pode ser definida como um sistema de produção que alterna, na mesma área, o cultivo de pastagens anuais ou perenes, destinadas à produção animal, e culturas destinadas à produção vegetal, sobretudo grãos.…”

Forage productivity of pigeon pea (Cajanus cajan (L.)Millsp.) genotypes in Rondônia

“…Rao et al (2003) constataram, nas folhas e nas plantas inteiras de guandu, 21,25% e 11,87% COSTA, N.L. et al Produtividade de genótipos de guandu (Cajanus cajan (L.) Millsp.)…”

Corn productivity in integrated crop-livestock system: Effect of different forage masses post-grazing

“…The integrated crop-livestock system is one of the most promising strategies for developing production systems that are more sustainable and have reduced input use because it assumes the continued use of agricultural land and improvement of soil quality over time (Rao et al, 2003). According to Veiga et al (2011), this system integrates multiple biological, economic and social factors that interrelate and determine its sustainability.…”