Department of Microbiology, Federal University of Agriculture, Abeokuta, Nigeria.
Department of Plant Physiology and Crop Production, Federal University of Agriculture, Abeokuta, Nigeria.
Sci Rep. 2022 Feb 2;12(1):1787. doi: 10.1038/s41598-022-05757-z.
Tomato is beneficial to human health because it contains valuable vitamins such as vitamins A, C and several minerals. However, to meet up with the demands of the ever increasing population, there is need to improve tomato production. This research, thus, investigated the impact of rice-husk biochar on the agronomic performances of tomato plant and microbial biomass of carbon, nitrogen and phosphorus in different tomato growth stages. The rice husk biochar pyrolyzed at 350 °C was amended with soil at four different application rates: 0, 2.5, 5.0 and 7.5 t/ha. Physicochemical property of soil was conducted using Mid Infrared Reflectance Spectroscopy method. Impact of biochar on Microbial Biomass Carbon, Microbial Biomass Nitrogen and Microbial Biomass Phosphorous was conducted using fumigation extraction method and monitored at three functional stages. Biochar application appreciably increase the soil physicochemical properties such as pH, Ca, Na, H, S, P, B, C, Zn and cation exchangeable capacity in comparison with the control. Biochar amended soil significantly enhanced tomato height, stem girth, leaf area, flowers, fruit yields and weight. Although, B3 recorded the lowest leaf area, it possessed the highest number of fruits and fruit weight of 3 and 40%, respectively. The ratio of Microbial biomass C:N:P for biochar amended soil at 7.5 t/ha (B3) was 302.30:18.81:11.75 µg/g, compared to control, which was 242.12:18.30:11.49 µg/g. This study revealed that biochar amendments significantly (p < 0.05) increased the yields and microbial biomass of tomato plants. Conclusively, the application of rice-husk biochar (7.5 t/ha) to soil is considered as a suitable approach to improve tomato growth and yield.
番茄对人类健康有益，因为它含有有价值的维生素，如维生素 A、C 和几种矿物质。然而，为了满足不断增长的人口需求，需要提高番茄的产量。因此，本研究调查了稻壳生物炭对番茄植株农艺性能和不同番茄生长阶段土壤碳、氮、磷微生物生物量的影响。在 350°C 下热解的稻壳生物炭以 0、2.5、5.0 和 7.5 t/ha 的四个不同施用量添加到土壤中。采用中红外反射光谱法对土壤理化性质进行了分析。采用熏蒸提取法研究了生物炭对微生物生物量碳、微生物生物量氮和微生物生物量磷的影响，并在三个功能阶段进行了监测。与对照相比，生物炭的应用显著增加了土壤的理化性质，如 pH、Ca、Na、H、S、P、B、C、Zn 和阳离子交换量。生物炭改良土壤显著提高了番茄的株高、茎围、叶面积、花、果实产量和重量。尽管 B3 的叶面积最小，但它的果实数量和果实重量最高，分别为 3 和 40%。与对照相比，生物炭用量为 7.5 t/ha（B3）的土壤中微生物生物量 C:N:P 的比值为 302.30:18.81:11.75µg/g，而对照为 242.12:18.30:11.49µg/g。本研究表明，生物炭的添加显著（p<0.05）提高了番茄的产量和微生物生物量。总之，将稻壳生物炭（7.5 t/ha）施用于土壤被认为是一种提高番茄生长和产量的合适方法。
