Abstract The study was aimed to evaluate the efficacy of supplying a mixture four phosphorus (P)-solubilizing purple nonsulfur bacteria strains, Rhodopseudomonas palustris VNW64, VNS89, TLS06, and VNW02 (P-solubilizing (PS-PNSB)) on soil properties, P uptake, growth, yield canary melon ( Cucumis melo L.). experiment consisted eight treatments, including 100% (150 kg 2 O 5 ha −1 ) as recommended, 75% P, 50% (75 ), no fertilizers, these treatments with adding PS-PNSB mixture. results showed...

In rice-shrimp farming systems, the high level of sodium that shrimps are able to grow in may create an adverse environment for rice. This research aimed isolate purple nonsulfur bacteria (PNSB) from fields and select strains were resistant H+, Al3+, Fe2+ Mn2+, can produce plant growth promoting substances such as 5-aminolevulinic acid, exopolymeric substances, indole-3-acetic acid siderophores. The selected applied a soil pot experiment determine their ability enhance rice yield. From 63...

Under the effects of saltwater intrusion from rising sea water levels, climate change, and socioeconomic issues, Nga Nam district in Vietnam has suffered damage to its agriculture changes agricultural land use. This study aimed investigate factors that influenced use propose approaches limit The caused by on production was evaluated via secondary data collected Department Infrastructure Economics period 2010–2021. results show during 2010–2015 period, areas were affected 2010, 2012, 2015. In...

Pineapple cultivation in Vietnam results many byproducts that are costly to be chemically decompose, while acid sulfate soil for pineapple is deficient nutrients. Trichoderma spp. fungi more significant means of bio-decomposers agriculture and can degrade agricultural produce organic fertilizers crops, which one the trends sustainable agriculture. Therefore, current study aimed isolate strains could cellulose after harvest Vi Thanh City, Hau Giang Province. Forty-eight samples isolation was...

Abstract Highly saline soils negatively affect crop growth, especially rice. Although chemical approaches can be used, they damage the environment and sustainability of agriculture. Thus, a biological candidate should assessed. Therefore, study evaluated impact nitrogen (N)-fixing purple non-sulfur bacteria (PNSB) strains on improving soil properties, nutrient uptake, rice yield highly in My Xuyen district, Soc Trang province. The N-fixing PNSB were hypothesized to boost availability reduce...

The research aimed to (i) isolate, select, and assess the pathogenic potential of fungi that pose a risk causing scab disease on King mandarin fruits (Citrus sinensis), (ii) evaluate antagonistic Trichoderma spp. against Neurospora spp., , which cause under in vitro conditions. isolation process identified four fungal strains from ten showing symptoms, collected orchards Vung Liem District, Vinh Long Province. three most virulent scab-causing were KMS-01, KMS-02, KMS-04, with growth...

The aim of the current research was to evaluate effects members purple nonsulfur bacteria (PNSB), Rhodopseudomonas palustris strains VNW02, TLS06, VNW64, and VNS89, mixed with spent rice straw (SRS) from mushroom cultivation as a carrier on promoting sesame growth yield, ameliorating alluvial soil (AS) fertility in dykes. A 4 × 3 factorial experiment consisting different levels solid PNSB biofertilizer mixture at 0, 3, 4, 5 t·ha-1 (0, 1.81 108, 2.24 2.68 108 cells pot-1, respectively),...

The present study aimed to identify the abilities of δ-aminolevulinic acid (ALA) producing purple non-sulfur bacteria (PNSB), Luteovulum sphaeroides W22 and W47, reduce Na+ concentration, ameliorate soil fertility, nutrients uptake, growth yield rice on salt-contaminated soil. A two-factor experiment was conducted following a completely randomized block design. factors were frequency applying saline irrigation (zero, one, two, three four times) ALA-producing PNSB supplementation (applying...

The study was conducted to (i) isolate, select, and identify strains of purple nonsulfur bacteria (PNSB), which can fix nitrogen (N), from soil water in a rice-shrimp integrated system, (ii) determine the capacity selected potent PNSB producing plant growth promoting substances. isolation resulted 57 pure 36 samples paddy fields Thanh Phu - Ben Tre. Among them, 49 survived under pH 5.0 conditions, 24 grew well microaerobic light (ML) aerobic dark (AD) conditions basic medium (BIM) containing...

Salt intrusion has caused adverse effects on nutrient uptake, growth, and yield of rice plants in the Mekong Delta, Vietnam. Thus, (i) isolating, screening, identifying phosphorus (P)-solubilizing purple non-sulfur bacteria (PNSB), (ii) determining their ability to produce plant growth-promoting substances were aimed current study. Bacteria after isolation investigated under microaerobic light aerobic dark conditions for tolerate toxic cations available P from insoluble compounds, such as...

Abstract The use of chemical fertilizer based on farmers' experience has led to over-application in Hau Giang province, leading increased production costs and severe environmental pollution. Therefore, it is important assess crop nutrition status make nutrient recommendations. Therein, the diagnosis recommendation integrated system (DRIS) a well-known approach evaluating crops. current study aimed (i) evaluate sensitivity established DRIS norms set for ratoon pineapple (ii) appraise plants...

The overuse of chemical fertilizers under adverse conditions endangers the sustainability agriculture. A biological approach should be investigated to address this issue. Therefore, study aimed detect potency purple non-sulfur bacteria that can fix nitrogen (N) (PNSB-fN) Rhodobacter sphaeroides in soil N fertility, plant uptake, growth, and rice yield. In brief, an experiment was conducted check whether biofertilizer containing PNSB-fN strains improve yield fertility a highly saline acidic...

The study was conducted to isolate and select the fungal isolates causing stem end rot of pomelo fruit characterized by strong growth. Pomelos showing signs or wilt were collected. Sixteen isolated from samples collected two districts Binh Dai Mo Cay Bac Ben Tre province, Vietnam. experiment with 16 completely randomized, 3 replicates, each replicate being a Petri dish. Nine fast growing selected, diameter colonies ranging 8.60 9.00 cm, 48 h after inoculation. These nine when inoculated...

Abstract BACKGROUND A straightforward and robust technique to develop a heterogeneous Fenton‐like catalyst is demonstrated, involving the incorporation of iron oxides into zeolite X derived from rice husk ash, which improved removal efficiency for crystal violet (CV) with high dye concentration. RESULTS The synthesis an oxides/zeolite composite (IOZX) was investigated at room temperature salt ratio 10 wt%, ion exchange time 5 h 15% NaOH. With surface area 312 m 2 g −1 , obtained IOZX also...

This study aimed to (i) evaluate purple nonsulfur bacteria (PNSB) strains possessing the highest phosphorus (P) solubilizing capacity in field and (ii) determine efficacy of PNSB biofertilizers improving soil quality, P uptake, growth, yield pineapple cultivated acid sulfate (ASS). A experiment was conducted a completely randomized block design with two factors, including first factor as fertilizer levels (0, 50, 75, 100% P) based on recommended formula (RFF) second supplementation...

The diagnosis and recommendation integrated system (DRIS) has such high reliability that it can be used to evaluate many crops. Therefore, in order have a practical database for these norms, this study was conducted the established DRIS norms plant pineapples (Ananas comosus L.) assess their nutrition status an acid sulfate soil. Healthy disease-free leaf samples of 8-month-old pineapple plants without fruits were collected from experimental fields with nutritional omission trials farmers'...