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Straw retention, an alternative to artificial fertilization, commonly mitigates soil degradation and positively affects soil fertility. In this study, we investigated the succession of soil bacteria during two sugarcane straw retention treatments (control (CK) and sugarcane straw retention (SR)) and at four depths (0–10, 10–20, 20–30, and 30–40 cm) in fallow soil in a sugarcane cropping system. Using an Illumina MiSeq (16S rRNA) and soil enzyme activity, we explored the SR influence on soil bacterial communities and enzyme activities and its inclusive impact on soil fertility, with an emphasis on topsoil (0–10 cm) and subsoil (10–40 cm). Our results show that SR effectively improved soil fertility indicators (C, N, and P), including enzyme activities (C and N cycling), throughout the soil profile: these soil parameters greatly improved in the topsoil compared to the control. Sugarcane straw retention and soil depth (0–10 cm vs. 10–40 cm) were associated with little variation in bacterial species richness and alpha diversity throughout the soil profile. Subsoil and topsoil bacterial communities differed in composition. Compared to the CK treatment, SR enriched the topsoil with Proteobacteria, Verrucomicrobia, Actinobacteria, Chloroflexi, and Nitrospirae, while the subsoil was depleted in Nitrospirae and Acidobacteria. Similarly, SR enriched the subsoil with Proteobacteria, Verrucomicrobia, Actinobacteria, Chloroflexi, Gemmatimonadetes, and Bacteroidetes, while the topsoil was depleted in Acidobacteria, Gemmatimonadetes, and Planctomycetes compared to the CK. At the genus level, SR enriched the topsoil with Gp1, Gp2, Gp5, Gp7, Gemmatimonas, Kofleria, Sphingomonas, and Gaiella, which decompose lignocellulose and contribute to nutrient cycling. In summary, SR not only improved soil physicochemical properties and enzyme activities but also enriched bacterial taxa involved in lignocellulosic decomposition and nutrient cycling (C and N) throughout the soil profile. However, these effects were stronger in topsoil than in subsoil, suggesting that SR enhanced fertility more in topsoil than in subsoil in fallow land.
Caifang Zhang; Muhammad Tayyab; Ahmad Yusuf Abubakar; Ziqi Yang; Ziqin Pang; Waqar Islam; Zhaoli Lin; Shiyan Li; Jun Luo; Xiaoliang Fan; Nyumah Fallah. Bacteria with Different Assemblages in the Soil Profile Drive the Diverse Nutrient Cycles in the Sugarcane Straw Retention Ecosystem. Diversity 2019, 11, 194 .
AMA StyleCaifang Zhang, Muhammad Tayyab, Ahmad Yusuf Abubakar, Ziqi Yang, Ziqin Pang, Waqar Islam, Zhaoli Lin, Shiyan Li, Jun Luo, Xiaoliang Fan, Nyumah Fallah. Bacteria with Different Assemblages in the Soil Profile Drive the Diverse Nutrient Cycles in the Sugarcane Straw Retention Ecosystem. Diversity. 2019; 11 (10):194.
Chicago/Turabian StyleCaifang Zhang; Muhammad Tayyab; Ahmad Yusuf Abubakar; Ziqi Yang; Ziqin Pang; Waqar Islam; Zhaoli Lin; Shiyan Li; Jun Luo; Xiaoliang Fan; Nyumah Fallah. 2019. "Bacteria with Different Assemblages in the Soil Profile Drive the Diverse Nutrient Cycles in the Sugarcane Straw Retention Ecosystem." Diversity 11, no. 10: 194.
Fungi play an essential role in recovering the quality and fertility of soil. There is a limited understating of the complex response of fungal diversity to different organic materials in clay loam soil. Here, we report the response of soil fungi toward the short-term application of manure (M), sugarcane straw (S), and sugarcane straw plus manure (MS), including no organic material control (CK) at two different time points (50 and 100 days after application). Illumina sequencing was used to examine the fungal communities. Our results reveal a significant shift among the soil fungal community structure associated with each organic material application. After both time points, amendments—especially M and MS—decreased the fungal richness and stimulated the copiotrophic fungal group (Ascomycota) compared to the control soil (CK) and S-amended soil. On the contrary, as compared to the M and MS-amended soils, the CK and S-amended soils at both time points increased the fungal richness and stimulated the oligotrophic fungal groups. Organic material use, especially M and MS, showed variable results regarding pathogenic fungi enhancing the abundance of Lophodermium and Cercophora and decreasing Fusarium. Concerning the abundance of plant-beneficial fungi, Mortierella was reduced, and Podospora was increased by M and MS input. FUNGuild showed that the amendment of organic materials efficiently declined the abundance of endophytes and plant pathogens, but also enhanced the animal pathogens in terms of abundance with respect to CK at two time points. This study could be useful to provide a novel understanding of the management of soil-borne pathogens by organic amendments for the sustainable production of short-term crops.
Muhammad Tayyab; Waqar Islam; Chol Gyu Lee; Ziqin Pang; Farghama Khalil; Sheng Lin; Wenxiong Lin; Hua Zhang. Short-Term Effects of Different Organic Amendments on Soil Fungal Composition. Sustainability 2019, 11, 198 .
AMA StyleMuhammad Tayyab, Waqar Islam, Chol Gyu Lee, Ziqin Pang, Farghama Khalil, Sheng Lin, Wenxiong Lin, Hua Zhang. Short-Term Effects of Different Organic Amendments on Soil Fungal Composition. Sustainability. 2019; 11 (1):198.
Chicago/Turabian StyleMuhammad Tayyab; Waqar Islam; Chol Gyu Lee; Ziqin Pang; Farghama Khalil; Sheng Lin; Wenxiong Lin; Hua Zhang. 2019. "Short-Term Effects of Different Organic Amendments on Soil Fungal Composition." Sustainability 11, no. 1: 198.
Drought is one of the major concerns that reduces yield and quality of wheat worldwide, thus posing a great threat to food security. In near future, increasing wheat production is a key to meet the current increasing demand for food in drought stressed areas. Recent research findings have illustrated that silicon (Si), a second highly rich component in the soil, could cut down drought stress in wheat plants. Therefore, we have reviewed the promising role of Si in reducing drought stress and highlighted the mechanism by which Si could mitigate the drought stress in wheat plants. Application of Si not only enhances the photosynthetic pigment, biomass and growth but also improves grain quality and yield under drought stress. The review further sheds light on key mechanisms which explain about modification of gas exchange properties, nutrient element homeostasis, regulating of compatible solute synthesis, osmotic adjustment and antioxidant enzyme stimulation in wheat plants under drought stress. The review concludes via suggesting the future research needs about the Si role on wheat under drought stress.
Muhammad Tayyab; Waqar Islam; Hua Zhang. Promising role of silicon to enhance drought resistance in wheat. Communications in Soil Science and Plant Analysis 2018, 49, 2932 -2941.
AMA StyleMuhammad Tayyab, Waqar Islam, Hua Zhang. Promising role of silicon to enhance drought resistance in wheat. Communications in Soil Science and Plant Analysis. 2018; 49 (22):2932-2941.
Chicago/Turabian StyleMuhammad Tayyab; Waqar Islam; Hua Zhang. 2018. "Promising role of silicon to enhance drought resistance in wheat." Communications in Soil Science and Plant Analysis 49, no. 22: 2932-2941.
Crop residue and animal manure as a soil amendment have been recognized as a feasible agricultural practice owing to its contribution in improving the soil fertility (SF). The primary advantages of this practice are determined by the activities of soil microorganisms. However, goat manure (M), sugarcane straw (S), and goat manure plus straw (MS) amendments influence soil bacteria, their activities, and SF in clay-loam soil remains undefinable. Therefore, this study distinguished the efficacy of M, MS, and S amendment on soil enzyme activities and the availability of nutrients, including various bacterial populations in clay-loamy soil with respect to two different phases (50 and 100 days). In order to analyze the bacterial structure and their activities, we employed high-throughput sequencing (HTS) and soil enzyme activity (SEA) tests. Soil amended with M and MS not only significantly enhanced nutrient availability, including C, P, and N, soil pH, as well as SEA for C and N cycles in both phases. Additionally, the increase in nutrient availability was greater in M- and MS-amended soils in the second phase (100 days) compared to the M- and S-amended soils in the first phase (50 days). Moreover, plant growth promoting and lignocellulose degrading bacterial genera were enhanced under M- and MS-amended soil compared to S-amended soil in both phases. Distance-based redundancy analysis (dbRDA) showed that soil pH, carbon-nitrogen ratio (C:N), and nitrates (NO3−) were inducing the fewest changes, while total nitrogen (TN), total carbon (TC), available nitrogen (AN), available phosphorus (AP), total phosphorus (TP), available potassium (AK), and ammonium (NH4+) were the main operators in terms of change in bacterial populations. In general, we observed that M and MS are better amendment sources as compared to S amendment in order to enhance the SF in the clay-loamy soil in both phases, but greater fertility was exhibited in the second phase.
Muhammad Tayyab; Waqar Islam; Yasir Arafat; Ziqin Pang; Caifang Zhang; Yu Lin; Muhammad Waqas; Sheng Lin; Wenxiong Lin; Hua Zhang. Effect of Sugarcane Straw and Goat Manure on Soil Nutrient Transformation and Bacterial Communities. Sustainability 2018, 10, 2361 .
AMA StyleMuhammad Tayyab, Waqar Islam, Yasir Arafat, Ziqin Pang, Caifang Zhang, Yu Lin, Muhammad Waqas, Sheng Lin, Wenxiong Lin, Hua Zhang. Effect of Sugarcane Straw and Goat Manure on Soil Nutrient Transformation and Bacterial Communities. Sustainability. 2018; 10 (7):2361.
Chicago/Turabian StyleMuhammad Tayyab; Waqar Islam; Yasir Arafat; Ziqin Pang; Caifang Zhang; Yu Lin; Muhammad Waqas; Sheng Lin; Wenxiong Lin; Hua Zhang. 2018. "Effect of Sugarcane Straw and Goat Manure on Soil Nutrient Transformation and Bacterial Communities." Sustainability 10, no. 7: 2361.