Soil Fertility and Plant Nutrition Division, CSIR-Soil Research Institute, Kwadaso, Kumasi, Ghana.
Department of Crop and Soil Sciences, Faculty of Agriculture, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana.
PeerJ. 2023 Apr 4;11:e15135. doi: 10.7717/peerj.15135. eCollection 2023.
Food security issues continue to be a challenge in most parts of the globe, especially in sub-Saharan Africa (SSA). Several research attempts on addressing this issue have mainly been on nutrient replenishment using combined nutrient application of organic amendments and mineral fertilizer inputs. However, there is limited information available on the potential mechanisms underlying nutrient interactions associated with co-application of organic amendments and mineral fertilizers. Therefore, this review focuses on the mechanisms underlying crop nutrient interactions, with particular emphasis on improved nutrient synchrony, priming effect, general soil fertility improvement and balanced proportion of nutrients required by crops. Following a brief overview of the mechanisms, the review describes four common pre-determined nutrient ratios required by plants depending on its life cycle, environment and genotypic characteristics in order to attain the crop's maximum genetic potential. The review concludes with the need for future research to understudy mechanisms causing nutrient interaction under cropping systems, so as to apply nutrients at the most appropriate time to synchronize nutrient release with crop uptake, with the utmost goal of promoting sustainable crop production and enhancing food security.
粮食安全问题在全球大部分地区，尤其是撒哈拉以南非洲（SSA）仍然是一个挑战。针对这一问题的几项研究尝试主要集中在通过有机改良剂和矿物肥料的联合养分补充来补充养分。然而，关于有机改良剂和矿物肥料共同施用相关养分相互作用的潜在机制的信息有限。因此，本综述重点介绍了作物养分相互作用的机制，特别强调了改善养分同步性、激发效应、一般土壤肥力改善和作物所需养分的平衡比例。在简要概述了这些机制之后，本综述描述了植物根据其生命周期、环境和基因型特征所需的四种常见的预先确定的养分比例，以达到作物的最大遗传潜力。本综述最后指出，需要对耕作系统中导致养分相互作用的机制进行进一步研究，以便在最合适的时间施用养分，使养分释放与作物吸收同步，最终目标是促进可持续的作物生产和增强粮食安全。
