Dada Oyeyemi A, Mavengahama Sydney, Kutu Funso R
Food Security and Safety Niche Area Research Group, North-West University, Mafikeng Campus, Mmabatho 2735, South Africa.
Department of Crop Protection and Environmental Biology, University of Ibadan, Nigeria.
Int J Food Sci. 2023 Jun 15;2023:6115098. doi: 10.1155/2023/6115098. eCollection 2023.
The dietary value of popcorn, an important snack, depends on its proximate and nutritional constituents, while the economic worth is based on popability and expansion traits of the kernels. There is paucity of information on how soil fertility influences or relates with popping potentials as well as quality of popcorn kernel in semi-arid region. Therefore, the proximate composition and popping parameters of popcorn in response to organic and inorganic fertilizers were investigated. The field trial was conducted in 2017-2019, and it comprised five amendment rates including 90 and 180 kg ha NPK fertilizer and 4 and 8 t ha compost and unamended treatment as the control. The trial was arranged in randomized complete block design in triplicate. Data on kernel yield, biomass, and harvest index were evaluated. Kernels were analysed for proximate composition and popping indices using standard procedures. Across the two seasons, mean protein (8.1%) and fibre (10.2%) contents were highest in kernels from plots fertilized with NPK at 180 kg ha, while grains from plots fertilized with 8 t ha compost had the highest moisture (19.3%) and starch (50.1%) contents. The highest kernel expansion of 54.18 cm g and 77.6% popped kernels were obtained in plots fertilized with 4 t ha compost. Most of the kernels (61%) were small-sized caryopsis. Popability is significantly associated with volume expansion ( = 0.696). Proximate components and popability improved greatly in compost-augmented field relative to the unfertilized plots. Application of 4 or 8 t ha sorted municipal solid waste compost to Luvisol enhanced growth and nutritional quality of popcorn. In view of promoting nutrient cycling towards improving soil fertility without compromising environmental health, compost is comparable and a good alternative to fossil-based mineral fertilizers.
爆米花作为一种重要的零食，其饮食价值取决于其近似成分和营养成分，而经济价值则基于玉米粒的爆裂性和膨胀特性。在半干旱地区，关于土壤肥力如何影响爆米花的爆裂潜力以及玉米粒品质或与之有何关系的信息匮乏。因此，研究了有机和无机肥料对爆米花近似成分和爆裂参数的影响。田间试验于2017年至2019年进行，包括五种施肥量，即90和180千克/公顷的氮磷钾肥料、4和8吨/公顷的堆肥，以及未施肥处理作为对照。试验采用随机完全区组设计，重复三次。对籽粒产量、生物量和收获指数数据进行了评估。使用标准程序对玉米粒的近似成分和爆裂指数进行了分析。在两个季节中，施氮磷钾180千克/公顷地块的玉米粒中，平均蛋白质含量（8.1%）和纤维含量（10.2%）最高，而施8吨/公顷堆肥地块的玉米粒水分含量（19.3%）和淀粉含量（50.1%）最高。施4吨/公顷堆肥的地块获得了最高的玉米粒膨胀度，为54.18立方厘米/克，爆裂玉米粒比例为77.6%。大多数玉米粒（61%）为小粒颖果。爆裂性与体积膨胀显著相关（=0.696）。与未施肥地块相比，堆肥改良田的近似成分和爆裂性有很大改善。向淋溶土施用4或8吨/公顷分类的城市固体废物堆肥可提高爆米花的生长和营养品质。鉴于促进养分循环以提高土壤肥力而不损害环境健康，堆肥与基于化石的矿物肥料相当，是一种很好的替代品。
