■卢塞恩(苜蓿),是中国畜牧业的基石,然而,由于落后的农艺策略和技术,卢塞恩在中国面临种植挑战,导致生产率和质量低于全球标准。因此,我们进行了一项荟萃分析,以评估五种不同施肥类型对中国不同地区卢塞恩产量和营养品质的影响。肥料实践包括施用粪肥,矿物肥料和粪肥联合施用(FM),生物肥料施用,不平衡施用两种或两种以上矿物肥料,和平衡的矿物肥料施用。此外,研究了施肥对苜蓿产量和品质的影响因素,包括气候变量(年平均降水量,年平均温度),初始土壤特性(土壤有机碳;全氮,pH值),和农艺因素(播种率,收获频率,和卢塞恩站立年龄)。
■我们的研究分析了53篇发表的论文,以确定对提高卢塞恩产量和营养品质最有益的肥料。
■结果表明,肥料实践,平均而言,产量显著提高31.72%,粗蛋白含量显著提高11.29%,随着调频成为最有效的,这是因为矿物肥料为卢塞恩提供了可用的营养,粪肥为微生物提供必需的有机物并改善土壤特性。此外,肥料实践使中性和酸性洗涤剂纤维含量显着降低了6.28%和8.50%,分别,同时增加灰分含量和相对饲用价值。此外,气候变量,土壤性质,播期和收获频率等种植系统因素显著影响产量和营养品质。我们的结果的实际含义强调了平衡和战略性肥料施用以优化卢塞恩生产的必要性,并强调了根据环境条件调整种植实践的潜力。平衡和战略施肥可以同时改善土壤特性,增强土壤碳固存,减少土壤中温室气体的排放,这是实现农业可持续发展的重要措施。
UNASSIGNED: Lucerne (Medicago sativa), is a cornerstone of China\'s livestock industry, however, due to the backward agronomic strategies and technology, lucerne in China faces cultivation challenges that result in lower productivity and quality than global standards. Therefore, we undertook a meta-analysis to evaluate the impact of five distinct fertilization types on lucerne yield and nutritional quality in various locations in China. The fertilizer practices included manure application, combined mineral fertilizer and manure application (FM), biological fertilizer application, unbalanced application of two or more mineral fertilizer types, and balanced mineral fertilizer application. Furthermore, we investigate influential factors of yield and quality of lucerne under fertilization, including climatic variables (mean annual precipitation, mean annual temperature), initial soil properties (soil organic carbon; total nitrogen, pH), and agronomic factors (seeding rate, harvest frequency, and lucerne stand age).
UNASSIGNED: Our study analyzed 53 published papers to discern the most beneficial fertilizer for enhancing lucerne yield and nutritional quality.
UNASSIGNED: The results showed that the fertilizer practices, on average, significantly improved yield by 31.72% and crude protein content by 11.29%, with FM emerging as the most effective, this is because mineral fertilizers provide available nutrients for lucerne, manure provides essential organic matter for microorganisms and improve soil properties. In addition, the fertilizer practices significantly reduced neutral and acid detergent fiber contents by 6.28% and 8.50%, respectively, while increasing ash content and relative feeding value. Furthermore, climatic variables, soil properties, and planting system factors such as sowing date and harvest frequency significantly affected yield and nutritional quality. The practical implications of our results emphasize the need for balanced and strategic fertilizer application to optimize lucerne production and highlight the potential to adjust cultivation practices according to environmental conditions. Balanced and strategic fertilizer application can simultaneously improve soil properties, enhance soil carbon sequestration, and reduce the emission of greenhouse gases from the soil, which is a vital measure for realizing sustainable agricultural development.