Jéssica P. P. da Silva, Francisco Bezerra Neto, Jailma S. S. de Lima, Rayanna C. Ferreira, Isaac A. da S. Freitas, Natan M. Guerra
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引用次数: 0
摘要
利用Caatinga生物群系的自然物种作为绿肥是提高农业系统生产力和环境可持续开发的一个有前途的实践。本研究旨在估计单作萝卜农业经济特征的最大物理和经济效率与鸡冠树(Calotropis procera, Ait)的关系。半干旱环境下两个种植季的生物量。试验设计为随机完整区,5个处理,5个重复。这些处理分别为:16、29、42、55和68 t hm -1。在每个地块中,增加了两个额外的处理,一个不施肥(对照),另一个施用矿物肥料,以与最高效率处理进行比较。种植的萝卜品种是“Crimson Gigante”。在土壤中加入50.86 t ha-1的原麻干生物量时,萝卜可获得最大的优化生产效率(9.56 t ha-1)。土壤中添加44.39 t ha-1的萝卜干生物量可获得最大优化农业经济效益(以净收入37,641.08 R$ ha-1为基础)。每笔实物投资的回报率和利润率为2.94雷亚尔,利润率为62.55%。对于在半干旱环境中实行萝卜单一栽培的生产者来说,利用C. procera绿肥中的生物质是一项可行的技术。
Agro-economic optimization of radish cultivation fertilized with doses of roostertree in a semi-arid environment
ABSTRACT The use of spontaneous species from the Caatinga biome as green manure is a promising practice in increasing the productivity of agricultural systems and sustainable exploitation of the environment. This study aimed to estimate the maximum physical and economic efficiencies of radish agroeconomic characteristics in monocropping as a function of roostertree (Calotropis procera (Ait.) R. Br) biomass amounts in two cropping seasons in a semi-arid environment. The experimental design was randomized complete blocks with five treatments and five replications. The treatments consisted of different roostertree biomass amounts: 16, 29, 42, 55, and 68 t ha-1 on a dry basis, incorporated into the soil. In each block, two additional treatments were added, one without fertilization (control) and the other with mineral fertilizer, for comparison purposes with the maximum efficiency treatment. The radish cultivar planted was ‘Crimson Gigante’. The fertilization of the radish to obtain the maximum optimized productive efficiency (9.56 t ha-1) was possible with the incorporation of 50.86 t ha-1 of C. procera dry biomass into the soil. The maximum optimized agroeconomic efficiency (based on a net income of 37,641.08 R$ ha-1) of radish cultivation was obtained with 44.39 t ha-1 of C. procera dry biomass added to the soil. The rate of return and the profit margin obtained were 2.94 R$ for each real invested, with a profit margin of 62.55%. The use of biomass from the C. procera green manure is a viable technology for producers who practice radish monoculture in a semi-arid environment.
期刊介绍:
A Revista Caatinga é uma publicação científica que apresenta periodicidade trimestral, publicada pela Pró-Reitoria de Pesquisa e Pós-Graduação da Universidade Federal Rural do Semi-Árido – UFERSA, desde 1976.
Objetiva proporcionar à comunidade científica, publicações de alto nível nas áreas de Ciências Agrárias e Recursos Naturais, disponibilizando, integral e gratuitamente, resultados relevantes das pesquisas publicadas.