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首页> 外文期刊>Agricultural Systems >A bio-economic evaluation of the profitability of adopting subtropical grasses and pasture-cropping on crop-livestock farms.
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A bio-economic evaluation of the profitability of adopting subtropical grasses and pasture-cropping on crop-livestock farms.

机译：对农作物-农场采用亚热带草和牧草的盈利能力的生物经济评估。

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Pasture-cropping is a novel approach to increasing the area of perennial forages in mixed livestock and cropping systems. It involves planting annual cereals directly into a living perennial pasture. There is interest in using subtropical grasses for pasture-cropping as they are winter dormant and their growth profile is complementary with winter crops. The ability of subtropical grasses to maintain feed quality in summer is likely to be an important attribute. However, a wide range of factors can affect the uptake of such systems. This paper evaluates the farm-system economics of subtropical grasses and pasture-cropping. The research question is: what factors affect the profitability of a new technology such as (1) subtropical grass and (2) subtropical grass that is pasture-cropped. The analysis uses the MIDAS model of a central wheatbelt farm in Western Australia. The results suggest the profitability and adoption of subtropical grasses is likely to be strongly influenced by the mix of soil types present on the farm; the feed quality of the subtropical grass; whether the production emphasis of the farm is for grazing or cropping, and the level of production in summer and early autumn. The same factors are relevant to pasture-cropping, with the addition of yield penalties due to competition between the arable crop and the host perennial. The results were less sensitive to changes in the winter production of subtropical grass. Pasture-cropping was more profitable and likely to involve a larger area of the farm when a meat rather than a wool-dominant sheep system was present. However, there was little difference between the meat and wool flocks in their sensitivity to other factors in this analysis.
机译：牧草是增加混合牲畜和作物系统中多年生牧草面积的一种新颖方法。它涉及将一年生的谷物直接种植到活的多年生牧场中。人们对使用亚热带草种进行牧草有兴趣，因为它们处于冬季休眠状态，并且其生长状况与冬季作物互补。亚热带草在夏季保持饲料质量的能力可能是重要的属性。但是，各种各样的因素都会影响此类系统的使用。本文评估了亚热带草和牧草的农业系统经济学。研究的问题是：什么因素会影响一项新技术的盈利能力，例如（1）副热带草和（2）牧草副热带草。该分析使用了西澳大利亚州一个中央小麦带农场的MIDAS模型。结果表明，亚热带草的获利能力和采用可能会受到农场土壤类型的混合的强烈影响。亚热带草的饲料质量;农场的生产重点是放牧还是农作物，以及夏季和初秋的生产水平。牧场种植也有相同的因素，由于耕作作物和寄主多年生植物之间的竞争而增加了产量损失。结果对亚热带草冬季产量的变化不太敏感。当存在肉类而不是以羊毛为主的绵羊系统时，草场种植更有利可图，并且可能涉及更大的农场面积。但是，在此分析中，肉和羊毛群对其他因素的敏感性几乎没有差异。

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