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首页> 外文期刊>Journal of Agricultural Science >Agronomic Performance of Soybean Intercropped With Cover Crops and the Effects of Lime and Gypsum Application
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Agronomic Performance of Soybean Intercropped With Cover Crops and the Effects of Lime and Gypsum Application

机译：间作套种大豆的农艺性状及石灰和石膏施用的影响

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Soybean is the major crop in the Brazilian Cerrado region. Tocantins state has been increasing soybean production mostly into degraded pasture. However, cover crops such as forages crops are important to implement in regional soybean agricultural systems to increase systems resilience due to climate variability. There is a lack of information regarding to agronomic performance of soybean intercropped with cover crops under no-tillage. The experimental design was randomized complete blocks with four replications in factorial 7 × 2. Seven soybean cultivation systems were tested: 1) soybean intercropped with Urochloa brizantha cv. Marandu; 2) soybean intercropped with Urochloa ruziziensis; 3) soybean intercropped with Panicum maximum cv. Momba?a; 4) soybean intercropped with Panicum infestans cv. Massai; 5) soybean intercropped with Pennisetum americanum; 6) soybean followed by Pennisetum americanum; and 7) soybean and fallow. Two soil acidity and amelioration were tested: 1) with lime and gypsum application; 2) without lime and gypsum application. Soybean grain yield, plant height and number of pods per plant were different. Soybean grain yield were higher with lime ad gypsum application. The highest soybean plants height were observed in the treatments where lime and gypsum were applied, and with soybean intercropped with P. maximun and Millet. Soybean number of pods was positively affected P. infestans intercropped with soybean. There was no significant difference among treatments for mass per 100 seeds. Cover crops showed suitable to increase agronomic performance of soybean.
机译：大豆是巴西塞拉多地区的主要农作物。 Tocantins州一直在增加大豆产量，其中大部分是退化的牧场。但是，有盖作物（例如草料作物）对于在区域大豆农业系统中实施以提高气候变化带来的系统适应力至关重要。缺乏关于免耕套种大豆的农艺性能的信息。实验设计是随机完整块，在因子7×2中有四次重复。测试了七个大豆种植系统：1）间作与Urochloa brizantha cv间作的大豆。 Marandu; 2）大豆与鲁氏Ur草间作; 3）大豆间作与Panicum最大cv。蒙巴？ 4）大豆与Panicum infestans cv间作。马赛5）大豆与美国狼尾草间作; 6）大豆，其次是美洲狼尾草; 7）大豆和休闲食品。测试了两种土壤的酸度和改善程度：1）石灰和石膏施用; 2）无石灰和石膏的应用。大豆籽粒产量，株高和单株荚数不同。施用石灰和石膏可提高大豆的产量。在施用石灰和石膏的处理中观察到大豆的最高株高，并且在大豆间作有最大的P. maximun和小米。大豆荚果数对大豆间作致病疫霉有积极影响。每100个种子的质量处理之间无显着差异。覆盖作物显示适合提高大豆的农艺性状。

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