【Objective】 To explore the changes of soil bacterial community diversity and function after planting ginseng (Panax ginseng C. A. Mey.), and the effects of biochar application on soil bacterial community diversity and function. 【Method】 The field experiments with different biomass charcoals were conducted to improve the soil of continuous cropping ginseng field, and the changes of bacterial community diversity and function were analyzed by high-throughput sequencing technology.【Result】 The bacte...

Agricultural Science  Soil Science  Agronomy 

Doi:10.7671/j.issn.1001-411X.202105001

【Objective】 This study was to explore the dynamic effects of three kinds of shell biochars on the physical and chemical properties of red soil in southern China, and provide a theoretical basis for improvement of red soil in southern China.【Method】 Three kinds of shell biochars were prepared by slow pyrolysis method and characterized. The dynamic effects of adding three kinds of shell biochars on soil organic matter content, bulk density, pH and available potassium were studied through indoor e...

Agricultural Science  Soil Science  Agronomy 

Doi: 10.7671/j.issn.1001-411X.202010019

【Objective】 To explore the effects of different coupling modes of water-fertilizer on root zone soil quality and water use of Coffea arabica under shade. 【Method】 C. arabica was chosen as test material, under 30% shading degree, three irrigation levels (WH: 1.2 Ep, WM: 1.0 Ep, WL: 0.8 Ep) and three fertilization levels (FH: 530.00 kg·hm？2, FM: 353.33 kg·hm？2, FL: 176.67 kg·hm？2) were completely designed with a total of nine treatments. The response laws of soil nutrient, microbial quantity, enz...

Agricultural Science  Soil Science  Agronomy 

Doi: 10.7671/j.issn.1001-411X.202103007

【Objective】 To evaluate the ecological environment quality of coal mining area in Huaibei, and provide a scientific and theoretical basis for monitoring the ecological environment change in the mining area.【Method】 The growth and development condition of Caenorhabditis elegans in the water environment of the mining area and the change of soil nematode community structure were studied to evaluate the ecological environment quality. 【Result】 The water environment in the coal mining area reduced th...

Agricultural Science  Soil Science  Agronomy 

Doi: 10.7671/j.issn.1001-411X.202105042

【Objective】 To explore the effects of arbuscular mycorrhizal (AM) fungal inoculation on the growth of Nitraria sibirica Pall. under different levels of salt and heavy metal stress, and provide a scientific basis and data support for plant-microbial joint remediation of heavy metal contaminated and salinized soil. 【Method】 Greenhouse potted soil was used to simulate different levels of heavy metal Cd polluted (0, 2, 5 mg·kg？1 Cd in dry soil) and NaCl (0, 1.5 g·kg？1 Na in dry soil) salinized soil...

Mycology  Agricultural Science  Soil Science  Agronomy 

Doi:10.7671/j.issn.1001-411X.202108016

【Objective】 To discuss the effects of different phosphorus concentrations on soil characteristics, growth status and chromone content of Saposhnikovia divaricata, and provide theoretical basis for technical strategy formulation of S. divaricata artificial cultivation and responding mechanism research of S. divaricata to low phosphorus stress. 【Method】 Two-year-old S. divaricata was used as material, and three phosphorus treatments with NH4H2PO4 concentration of 1.0, 0.1 and 0 (no phosphorus) mmo...

Agricultural Science  Soil Science  Agronomy 

Doi:10.7671/j.issn.1001-411X.202104024

【Objective】 To discover the effects of biochar on soil bacterial community diversity, abundance and structure of different rice varieties, and provide a scientific basis for the application of biochar in paddy field.【Method】 Experiment of split-split plot was designed in the late rice field of Fluvo-aquic soil type in Taishan Town of Jiangmen County, Guangdong Province in 2019, treatments were designed with no biochar application(CK), biochar application of 3.5 t/hm2 (Tr1) and 7 t/hm2 (Tr2) as t...

Agricultural Science  Soil Science  Agronomy 

Doi: 10.7671/j.issn.1001-411X.202108022

【Objective】 In order to study the colonization rule of Bacillus subtilis biocontrol strain SEM-9 in the rhizosphere of crops and its influence on the microbial diversity of rhizosphere soil. 【Method】 The strain SEM-9 was labeled with green fluorescent protein by natural transformation method, and the colonization in rhizosphere soil, on root surface and in root tissue were observed by inverted fluorescence microscope. The changes of microbial diversity in rhizosphere soil treated with the strain...

Agricultural Science  Soil Science  Agronomy 

Doi:10.7671/j.issn.1001-411X.202107008

【Objective】 This study aimed to explore plant adaptability and heavy metals accumulation of different landscape plants and the co-planting system in sludge-amended landscape soil and provide a theoretical basis for the sewage sludge landscape utilization and the selection of landscape plants for heavy metals remediation.【Method】 Landscape tree Bischofia javanica and landscape ground cover plant Dianella ensifolia,Syngonium podophyllum, and Schefflera odorata were selected as tested plants. The g...

Agricultural Science  Soil Science  Agronomy 

Doi:10.7671/j.issn.1001-411X.202108021

【Objective】 To seek more effective agronomic measures to reduce runoff, sediment and phosphorus loss emissions under the combination of different stacking methods and straw returning densities.【Method】 Under the conditions of natural rainfall, different straw returning densities (0.75, 1.5 kg·m？2), different straw crushing particle sizes (1, 5 cm), adding water or urea were designed to study the effects on runoff and sediment amount, and phosphorus loss of slope farmland in the middle of Yunnan....

Agricultural Science  Soil Science  Agronomy 

Doi:10.7671/j.issn.1001-411X.202107028