Muhammad Sher, Shaukat Muhammad, Yasin Muhammad, Mahmood Athar, Javaid Muhammad Mansoor, Al-Sadoon Mohammad Khalid, Głowacka Aleksandra, Ahmed Mohamed A A
Department of Agricultural Sciences, Allama Iqbal Open University, Islamabad, 44000, Pakistan.
Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha, 40100, Pakistan.
Sci Rep. 2023 Oct 16;13(1):17519. doi: 10.1038/s41598-023-44921-x.
Arid soils are often weak, low in fertility, and lack essential plant nutrients. Organic amendments might be a feasible solution to counter the detrimental impact and rehabilitate weak arid soil for the growth of legumes. The study aimed to investigate how organic amendments of compost and humic acid may affect winter field pea productivity in arid soil. Over 2 years of field experiments, a range of treatments were applied, including different amounts of compost and humic acid. The results showed higher microbial carbon (C), and nitrogen (N) biomass, root length, shoot length, grains pod, and grain yield of pea, gained from the collective application of 8 Mg ha compost and 15 kg ha humic acid compared to all other treatments. Organic amendments increased soil microbial C density by 67.0 to 83.0% and N biomass by 46.0 to 88.0% compared with the control. The combined application of compost and humic acid increased soil microbial N biomass by 57.0 to 60.0% compared to the sole applications of compost-only and humic acid-only. It was concluded that organic amendments of 8 Mg ha compost and 15 kg ha humic acid in arid soil modulated microbial density, resulting in improved winter field pea productivity. This study suggests organic amendments of compost and humic acid might be a practicable solution to rehabilitate weak arid soil to grow legumes.
干旱土壤通常较为贫瘠，肥力低下，且缺乏植物必需的养分。有机改良剂可能是应对干旱土壤不利影响并修复贫瘠干旱土壤以促进豆类生长的可行解决方案。本研究旨在探究堆肥和腐殖酸的有机改良剂如何影响干旱土壤中冬播豌豆的生产力。在为期两年的田间试验中，设置了一系列处理，包括不同用量的堆肥和腐殖酸。结果表明，与所有其他处理相比，同时施用8 Mg/公顷堆肥和15 kg/公顷腐殖酸可使豌豆的微生物碳（C）、氮（N）生物量、根长、茎长、每荚粒数和籽粒产量更高。与对照相比，有机改良剂使土壤微生物C密度提高了67.0%至83.0%，N生物量提高了46.0%至88.0%。与单独施用堆肥和单独施用腐殖酸相比，堆肥和腐殖酸的联合施用使土壤微生物N生物量提高了57.0%至60.0%。研究得出结论，干旱土壤中施用8 Mg/公顷堆肥和15 kg/公顷腐殖酸的有机改良剂可调节微生物密度，从而提高冬播豌豆的生产力。本研究表明，堆肥和腐殖酸的有机改良剂可能是修复贫瘠干旱土壤以种植豆类的切实可行的解决方案。
