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首页> 外文会议>ACIAR Proceedings no.115; Workshop on Tropical Legumes for Sustainable Farming Systems in Southern Africa and Australia; 20021007-09; Limpopo Province(ZA) >Grain Yield of Maize Grown in Sole and Binary Cultures with Cowpea and Lablab in the Limpopo Province of South Africa
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Grain Yield of Maize Grown in Sole and Binary Cultures with Cowpea and Lablab in the Limpopo Province of South Africa

机译：南非林波波省的Cow豆和扁豆单一和二元培养的玉米籽粒产量

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摘要

The smallholder cropping system in the Limpopo Province of South Africa is characterised by predominantly maize monoculture, low external inputs and poor soil fertility, particularly low nitrogen and phosphorus. The need to include significant amounts of leguminous species in the system without sacrificing maize yields is essential. Field studies were conducted to assess the yield performance and agronomic characteristics of maize in sole and intercropped systems with diverse cowpea and lablab cultivars. Two different experiments were carried out at two locations in the Limpopo Province - namely, the University of the North experimental farm at Syferkuil and at a communal field at Thabina/Dan community during the 1998/99 and 1999/2000 growing seasons, and in the 2001/02 season, at Syferkuil and a fanner's field at Dalmada. The 1998/99 and 1999/2000 trials consisted of four cowpea cultivars (Pan 311, Pan 326, Bechuana White and Agrinawa) intercropped at alternate 90 cm inter-row spacing with the maize variety SNK2147 and their respective sole crops. The 2001/ 02 trials consisted of two cowpea cultivars (Glenda and Bechuana White) and two lablab cultivars (Rongai and Common) planted as sole crops or interplanted between two maize rows, spaced 90 cm apart. Differences in maize grain yield during the 1998/99 and 1999/2000 trials were only observed at Syferkuil in 1999/2000. The yield of maize intercropped with Pan 311 was superior to the sole crop yield, whereas the others were similar. In the 2001/02 trials, intercropped maize grain yields were generally lower than the sole crops. Seed yield of the cowpea cultivars Pan 326, Bechuana White and Agrinawa were similar in sole and intercropped systems, whereas the seed yield of cowpea cultivar Pan 311 was reduced by intercropping.
机译：南非林波波省的小农作物种植系统的特点是玉米单一栽培，外部投入低，土壤肥力差，尤其是氮和磷含量低。在系统中包括大量豆科物种而不牺牲玉米产量的需求是至关重要的。进行了田间研究，以评估玉米在具有多种cow豆和扁豆品种的单一和间作系统中的产量表现和农艺特性。在林波波省的两个地方分别进行了两次不同的实验-在1998/99年和1999/2000年的生长季节，在锡菲库伊北部的实验农场大学和Thabina / Dan社区的公共田间。 2001/02赛季，在Syferkuil和达拉马达的一个球迷场。 1998/99年和1999/2000年的试验由四个cow豆品种（Pan 311，Pan 326，Bechuana White和Agrinawa）以90 cm的交替行距与玉米品种SNK2147及其各自的唯一农作物间作。 2001/02年的试验由两个cow豆品种（Glenda和Bechuana White）和两个扁豆品种（Rongai和Common）组成，它们作为单独的作物种植或插在两行玉米之间，相距90厘米。 1998/99年和1999/2000年试验期间玉米籽粒产量的差异仅在Syferkuil于1999/2000年观察到。套种Pan 311的玉米的产量要高于单一作物的产量，而其他的相似。在2001/02年的试验中，间作玉米谷物的产量通常低于单季作物。豆和间作系统中pea豆品种Pan 326，Bechuana White和Agrinawa的种子产量相似，而间作则降低了pea豆品种Pan 311的种子产量。

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