Saini Ishan, Kaushik Prashant, Al-Huqail Asma A, Khan Faheema, Siddiqui Manzer H
Department of Botany, Kurukshetra University Kurukshetra, Kurukshetra 136119, India.
Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, 46022 Valencia, Spain.
Saudi J Biol Sci. 2021 May;28(5):2641-2648. doi: 10.1016/j.sjbs.2021.02.070. Epub 2021 Mar 1.
The belowground soil environment is an active space for microbes, particularly Arbuscular Mycorrhizal Fungi (AMF) and P hosphate Solubilizing Bacteria (PSB) that can colonize with roots of higher plants. In the present experiment, we evaluated the combination of microbial inoculants with the different doses of urea and superphosphate in a complete randomized block design (CRBD). Three different doses of urea and superphosphate were tested, i.e., recommended dose, 75% of the recommended dose and 125% of the recommended dose, independently and in combination with three microbial groups . (AMF), (PSB) and Nitrifying microorganisms ( + , NN). Overall, there were 16 treatment combinations used, and studied the number of tubers per plant, the weight of tubers, moisture content, and the number of nodes per tubers which were best in treatment comprising of AMF + PSB + NN + 75% of urea + superphosphate. From our results, it is suggested for the growers to use a lesser quantity of fertilizers from the recommended dose along with some bioinoculants to maintain the soil fertility and also to achieve the yield targets by decreasing the cost of chemical fertilizers.
地下土壤环境是微生物的活跃空间,尤其是丛枝菌根真菌(AMF)和溶磷细菌(PSB),它们可以与高等植物的根系共生。在本实验中,我们采用完全随机区组设计(CRBD)评估了微生物接种剂与不同剂量尿素和过磷酸钙的组合。测试了三种不同剂量的尿素和过磷酸钙,即推荐剂量、推荐剂量的75%和推荐剂量的125%,分别单独使用以及与三个微生物组(AMF)、(PSB)和硝化微生物(+,NN)组合使用。总体而言,共使用了16种处理组合,并研究了每株植物的块茎数量、块茎重量、含水量以及每个块茎的节数,其中最佳处理为AMF + PSB + NN + 75%尿素 + 过磷酸钙。根据我们的结果,建议种植者从推荐剂量中减少化肥用量,并搭配一些生物接种剂,以维持土壤肥力,同时通过降低化肥成本实现产量目标。