Food Expenditure Research Articles

Nutrient budgets and biogeochemical dynamics in the coastal regions of northern Beibu Gulf, South China Sea: Implication for the severe impact of human disturbance

This study examined the nutrient budgets and biogeochemical dynamics in the coastal regions of northern Beibu Gulf (CNBG). Nutrient concentrations varied spatially and seasonally among the different bays. High nutrient levels were found in the regions with high riverine inputs and intensive mariculture. Using a three end-member mixing model, nutrient biogeochemistry within the ecosystem was estimated separately from complex physical mixing effects. Nutrient consumption dominated in most bays in summer, whereas nutrient regeneration dominated in winter, likely due to phytoplankton decomposition, vertical mixing and desorption. Through the Land-Ocean Interaction Coastal Zone (LOICZ) model, the robust nutrient budgets were constructed, indicating that the CNBG behaved as a sink of dissolved inorganic nitrogen, phosphorus and silicon. River-borne nutrient inputs were the dominant nutrient source, while residual flows and water exchange flows transported nutrient off the estuaries. This study could help us better understand nutrient cycles and nutrient sources/sinks in the CNBG.

Determinants of household food expenditure in Tanzania: implications on food security

BackgroundFood expenditure in developing countries particularly those in sub-Saharan Africa constitutes about 65–70% of total household expenditure. Existing literature on the determinants of household food expenditure in developing countries have mixed results. Thus, this study aimed at examining the determinants of household food expenditure in Tanzania and their implications on food security using country representative data from the 2017/18 household budget survey. The Two-Stage least squares (2SLS) regression analysis was used as method of analysis.ResultsResults show that, on average, monthly household food expenditure in Tanzania is about TZS 159,072.80(≈ US $ 69.2). Food expenditure exhibited a non-linear relationship with age of household head with income elasticity of 0.72%. Expenditure also increases with household size, household head sex, education, asset ownership, group membership and marital status while being located in rural areas is negatively associated with food expenditure.ConclusionsTo increase household’s food expenditure with dietary diversity for improved health, strategies aiming at improving household income, family planning, gender equity, education and social cohesion are important which will further increase household’s food security.

Paid family leave and the fight against hunger: Evidence from New York.

We examine the effects of New York's paid family leave (PFL) policy, introduced in January 2018, on food security. While researchers evaluating PFL policies in the past have mostly focused on employment and health outcomes, we believe that an improved understanding of potential impacts on food security is pivotal as it is directly related to the health and well-being of mothers and new-borns during the postnatal months. Our analysis uses two primary data sets-Current Population Survey Food Security Supplement (CPS-FSS) and Panel Study of Income Dynamics. Estimating difference-in-differences and triple difference models, we show that New York's PFL reduced the prevalence of low food security by 36% in both datasets. The positive effects are more sizable for households with low-educated heads and families with incomes under 185% of the Federal Poverty Line. These findings highlight that paid leave benefits lead to a larger reduction in food insecurity among disadvantaged families and thus have the potential to reduce existing societal inequalities. When examining potential mechanisms through which New York's PFL law improves food security, we show that the policy increased food expenditures, increased labor force participation, particularly by mothers, and improved parental health.

Nutrient consumption patterns of Lactobacillus acidophilus.

One of the greatest challenges in using Lactobacillus acidophilus as a probiotic is acid stress. The current research aimed to identify substances that help L. acidophilus resist acid stress; this was achieved through assessing its nutrient consumption patterns under various pH conditions. The consumption rates of alanine, uracil, adenine, guanine, niacin, and manganese were consistently higher than 60% for L. acidophilus LA-5 cultured at pH 5.8, 4.9, and 4.4. The consumption rates of glutamic acid + glutamine and thiamine increased with decreasing pH and were higher than 60% at pH 4.9 and 4.4. The viable counts of L. acidophilus LA-5 were significantly increased under the corresponding acidic stress conditions (pH 4.9 and 4.4) through the appropriate addition of either alanine (3.37 and 2.81 mmol L-1), glutamic acid + glutamine (4.77 mmol L-1), guanine (0.13 and 0.17 mmol L-1), niacin (0.02 mmol L-1), thiamine (0.009 mmol L-1), or manganese (0.73 and 0.64 mmol L-1) (P < 0.05). The viable counts of L. acidophilus LA-5 cultured in a medium supplemented with combined nutritional factors was 1.02-1.03-fold of the counts observed in control medium under all acid conditions (P < 0.05). Alanine, glutamic acid + glutamine, guanine, niacin, thiamine, and manganese can improve the growth of L. acidophilus LA-5 in an acidic environment in the present study. The results will contribute to optimizing strategies to enhance the acid resistance of L. acidophilus and expand its application in the fermentation industry. © 2024 Society of Chemical Industry.

Cross sectional study on the association among hypertension with obesity indicators and dietary patterns of fishing community at coastal regions in India

Background and aimOne of the main factors of sickness and disability around the world is hypertension and obesity is the main predictor of hypertensive condition. A few population-based studies on fishermen in West Bengal, India, evaluated the association between anthropometric parameters, nutritional intake, and obesity indicators with blood pressure (BP). The present investigation aims to explore the association between obesity indicators and nutrient consumption with blood pressure. MethodsIn the present study, a number of 1202 male fishermen (ages 25–60 years) from West Bengal's coastal areas, took their anthropometric measurements, BP values, and nutritional intake using standard techniques. The cut-off values of body mass index (BMI) and percentage of body fat (BF%) correlated with hypertension were determined by using receiver operating characteristic analysis. The statistical analyses were performed using SPSS (Version 20) and MedCalc statistical software (version 20.115). ResultsThe study showed that most of the anthropometric parameters were higher in the control group than the fishermen, and most of the fishermen remain in normotensive conditions. Obesity indicators were significantly high in hypertensive individuals. Increasing of the obesity indicators were associated with hypertensive condition. In the case of nutrient intake, only fat and oil intake had a significant positive correlation with an increase in BP. This finding also suggests that the BMI and BF% cut off values were associated with hypertension. ConclusionThis study suggests that the increasing value of BMI and the cut-off value of BMI and BF% of this study are all potential risk factors for hypertension.

The direct and indirect effects of cash transfer program on the consumption of nutrients: Evidence from Kenya

AbstractHow does the receipt of a cash transfer impact consumption of nutrients, vitamins, and minerals in households? To answer this question, we use a randomized controlled trial dataset from Hunger Safety Net Program (HSNP) with 9,246 households spread across the four districts (Turkana, Marsabit, Wajir, and Mandera) of Kenya. In the experiment, HSNP treated households received a bi‐monthly cash transfer of about United States of America Dollar (USD) 20 relative to households in control sub‐locations. Using difference in‐difference specification, we find that HSNP poor beneficiary households in treated households increased (by approximately 96%, 50%, and 61%) the consumption of vitamins A, C, and beta carotene, respectively compared to those in control sub‐locations. Moreover, HSNP non‐poor, non‐beneficiary households residing in treated sub‐locations increased (by about 70% and 46%) the consumption of vitamin A and Beta carotene, respectively compared to those in control sub‐locations. In addition, HSNP‐poor beneficiary households in treated sub‐locations sourced most of their nutrients, vitamins, and minerals from the market. We rule out alternative pathways that could potentially increase consumption and conclude that a rise in consumption amongst HSNP non‐poor, non‐beneficiary households is due to sharing of HSNP transfer amongst social network members.

The Relationship of Mother's Education Level, Mother’s Knowledge, Family Income and Nutritional Status of Toddler in The Working Area Of The Weekombak Puskesmas, West Sumba District

Nutritional status is the condition of the body as a result of food consumption and use of nutrients. Nutrition is also one of the assets in determining the quality of resources that can enhance physical growth and the development of human intelligence. Based on the health profile of Southwest Sumba Regency in 2019, namely in June, there were 278 cases of malnutrition among five children, while there were 939 cases of malnutrition. Weekombak Health Center is one of the health centers in West Wewewa District, Southwest Sumba Regency. Weekombak health center is one of the health centers that has nutritional status problems with a total of 95 cases. The purpose of this study was to analyze the relationship between mother's education level, mother's knowledge, family income and the nutritional status of toddlers in the working area of the Weekombak Health Center, Southwest Sumba Regency. The type of research used is survey research with a cross-sectional design. The location and time of this research is in the working area of the Weekombak Health Center, Southwest Sumba Regency, in July-August 2022. The sample used in this study was 95 toddlers. The data obtained were analyzed using chi-square with a significance level of α=0.005. The results showed that there were variables that had a relationship with the nutritional status of toddlers, namely mother's education (p-value = 0.000), mother's knowledge (p-value = 0.000), family income (p-value = 0.003), therefore, mothers Those who have children under five are expected to pay attention to the nutritional status of children under five and participate in the care of children under five.&#x0D; Keywords : related factors, nutritional status, toddlers

Effects of macro- and micro-nutrients on momentary and season-long feeding responses by select species of ants

Few studies have investigated the relative contribution of specific nutrients to momentary and season-long foraging responses by ants. Using western carpenter ants, Camponotus modoc, and European fire ants, Myrmica rubra, as model species, we: (1) tested preferential consumption of various macro- and micro-nutrients; (2) compared consumption of preferred macro-nutrients; (3) investigated seasonal shifts (late May to mid-September) in nutrient preferences; and (4) tested whether nutrient preferences of C. modoc and M. rubra pertain to black garden ants, Lasius niger, and thatching ants, Formica aserva. In laboratory and field experiments, we measured nutrient consumption by weighing Eppendorf tubes containing aqueous nutrient solutions before and after feeding by ants. Laboratory colonies of C. modoc favored nitrogenous urea and essential amino acids (EAAs), whereas M. rubra colonies favored sucrose. Field colonies of C. modoc and M. rubra preferentially consumed EAAs and sucrose, respectively, with no sustained shift in preferred macro-nutrient over the course of the foraging season. The presence of a less preferred macro-nutrient in a nutrient blend did not diminish the blend’s ‘appeal’ to foraging ants. Sucrose and EAAs singly and in combination were equally consumed by L. niger, whereas F. aserva preferred EAAs. Baits containing both sucrose and EAAs were consistently consumed by the ants studied in this project and should be considered for pest ant control.

Analysis of cell growth, photosynthetic behavior and the fatty acid profile in Tetraselmis subcordiformis under different lighting scenarios

Tetraselmis has been investigated as a potential source of lipids. This microalga possesses good growth characteristics and can be used to develop viable platforms for fatty acid production. This research aims to evaluate the effect of high photon flux density with light-dark cycles and light wavelength on biomass production and fatty acid profile in Tetraselmis subcordiformis. A low light control and treatments with high photon flux density with different light-dark cycles (24:0 h, 12:12 h, 1:1 h, and 15:15 min) and different light wavelength (white, green, red, and blue) were evaluated to determine cell concentration, nutrient consumption, chlorophyll content, photosynthetic yields, lipid content, and fatty acid profile. Significant differences were found in all variables, except for phosphate consumption. High photon flux density promotes cell growth with T. subcordiformis reaching biomass productivities of 0.10 g L-1 day-1 when continuous white light is used. However, no differences were observed in biomass productivities and lipid content for all high photon flux density treatments. On the other hand, red light resulted in higher cell growth, with a productivity of 0.12 g L-1 day-1, and the highest lipid content was achieved under white light. There was a significant effect on the fatty acid profile under different light conditions, with palmitic acid, oleic acid, and eicosapentaenoic acid being the most abundant. This study demonstrated that cellular growth and fatty acid profiles in T. subcordiformis can be influenced by different lighting schemes in the cultivation.

Associations between nutritional deficiencies and food insecurity among adolescent girls: A cross-sectional study.

There is a research gap in understanding the relationship between nutrient deficiency and food insecurity among adolescent girls in Afghanistan. The objective of this study was to investigate the associations between nutrient deficiencies and food insecurity among middle and high school-aged girls in Kabul. We conducted a cross-sectional study of 380 randomly selected 11-18-year-old girls attending public schools in grades 6-12. We assessed girls' food insecurity, food and nutrient intake, socioeconomic status, and physical activity. Nutrient consumption was calculated using Nutritionist IV software. Statistical analyses, including one-way analysis of variance, Chi-square tests, and t-tests, were used to assess the association between dietary intake and food insecurity. More than half (52.9%) of the participants were food insecure, with 35.8% experiencing hunger and 17.1% without hunger. Vitamin B3, C, selenium, and iron had the highest sensitivity, specificity, and accuracy and were the best indicators of food insecurity with and without hunger. The most prevalent nutrient deficiencies were vitamin B9 and E, calcium, magnesium, and zinc inadequacies. Food security was positively associated with fruit, vitamins E and K, dairy products (e.g., milk, yogurt, and cheese), meat products (e.g., chicken, meat, red meat, and egg), and nut intake. Our findings suggest that adolescent girls in Kabul may benefit from food programs that enrich nutrients such as B9 and E, calcium, magnesium, and zinc, which were found to be the most prevalent nutrient deficiencies. These findings highlight the importance of addressing food insecurity and nutrient deficiencies among adolescent girls in Afghanistan.

Parkinson’s Disease and Food Expenditure in Italy: Stochastic and Non-Stochastic Analyses

Parkinson’s Disease and Food Expenditure in Italy: Stochastic and Non-Stochastic Analyses

Hypoxia-responsive nanoparticles for tumor-specific starvation therapy via a two-pronged approach

Cancer starvation therapy, an effective cancer treatment approach that targets altered metabolic requirements of cancer cells, holds great promise for various cancer treatments. Herein, based on metabolic heterogeneity and hypoxia characteristics of the tumor, Au@BSA-L nanoparticles (NPs) were synthesized via the crosslink of Au@BSA by a hypoxia-responsive linker and utilized as the carrier for wzb117 to obtain Au@BSA-L-wzb117 NPs for hypoxia-activated starvation therapy with enhanced efficiency and negligible side effects. Specifically, the glucose oxidase (GOx)-like catalytic activity of Au@BSA could be effectively shielded during blood circulation owing to the crosslink, endowing Au@BSA-L-wzb117 with good biosafety. When Au@BSA-L-wzb117 accumulated at tumor sites, the hypoxic tumor microenvironment (TME) would promote the cleavage of the linker, resulting in the rapid release of Au@BSA and wzb117. The recovered GOx-mimicking activity of Au@BSA could speed up glucose consumption. Meanwhile, wzb117, a Glucose Transporter 1 (GLUT1) inhibitor, can effectively decrease glucose uptake and induce energy crisis in cancer cells to induce cell apoptosis. Both in vitro and in vivo experiments evidenced that the as-prepared Au@BSA-L-wzb117 exhibited TME hypoxia-responsive reactivity, nutrient consumption, and nutrient supply inhibition of tumor cells, and realized effective inhibition of tumor growth. Through this two-pronged strategy, Au@BSA-L-wzb117 exhibited great promise in efficient tumor starvation therapy with high specificity and reduced side effects.

Estimation of dietary intake of sodium, potassium, phosphorus and protein in healthy Indian population and patients with chronic kidney disease.

Poor nutritious diet is a major risk element for non-communicable diseases (NCD), which are of considerable public health concern. Given the diverse dietary patterns in India, precise determination of nutrient consumption is crucial for disease management. The present study assessed the dietary intake of sodium, potassium, protein, and phosphorus among North Indians. This cross-sectional study included healthy adults and adults with stage 2 to 4 chronic kidney disease (CKD). We analysed sodium, protein, potassium and phosphorus intakes using one-time 24-h urinary excretion. Dietary intake was also analysed in subgroups based on sex, body mass index, blood pressure and abdominal obesity. We evaluated the performance of various equations available to estimate sodium intake using a spot urine sample with respect to the sodium excretion measured in a 24-h urine sample. Descriptive statistics was used along with t-test for statistical significance. A total of 404 subjects (182 adult healthy subjects and 222 adults with CKD) with a mean age of 47.01 ± 11.46 years were studied. Mean dietary intakes of sodium, salt, potassium, protein and phosphorus were 2.94 ± 1.68 g/day, 7.42 ± 4.24 g/day, 1.43 ± 0.59 g/day, 47.67 ± 14.73 g/day and 0.86 ± 0.39 g/day, respectively. There were no differences in nutrient consumption between adults who were healthy and those with CKD. Consumption of sodium, salt, protein, potassium, and phosphorus among healthy population vs. those with CKD were 2.81 ± 1.60 vs. 3.05 ± 1.73 g/day (p = 0.152), 7.08 ± 4.04 vs. 7.70 ± 4.37 g/day (p = 0.143), 47.16 ± 14.59 vs. 48.08 ± 14.86 g/day (p = 0.532), 1.38 ± 0.59 vs. 1.48 ± 0.58 g/day (p = 0.087) and 0.86 ± 0.41 vs. 0.87 ± 0.37 g/day (p = 0.738), respectively. Men had higher consumption of these nutrients than women. Compared to non-hypertensives, hypertensive subjects had higher consumption of salt (8.23 ± 4.89 vs. 6.84 ± 3.59 g/day, p = 0.002) and potassium (1.51 ± 0.63 vs. 1.38 ± 0.55 g/day, p = 0.024), however, no difference were found in protein and phosphorus intakes. In terms of performance of equations used to estimate 24-h sodium intake from spot urinary sodium concentration against the measured 24-h urinary sodium excretion, INTERSALT 2 equation exhibited the least bias [1.08 (95% CI, -5.50 to 7.66)]. The study shows higher-than-recommended salt and lower-than-recommended potassium intake in the north Indian population compared to those recommended by guidelines. The dietary protein intake is below the recommended dietary allowance. These findings help the development of targeted policies for dietary modification to reduce the risk of the development and progression of CKD.

Determinants of Food Expenditure and Household Income in Gunungkidul’s Karst Region

Determinants of Food Expenditure and Household Income in Gunungkidul’s Karst Region

Does Food Expenditure Decrease after Retirement, and for Whom?

This paper examines the decline in food expenditure after retirement by quantiles of the consumption distribution, by gender, and by pre-retirement employment status. The decline in food expenditure after retirement is smaller among those who were employees than among those who were self-employed, but only for females. Males who did not work did not experience a decline in food expenditure when they crossed the official retirement age, while females who did not work decreased their food expenditure in parts of the consumption distribution. These results are consistent with the two common explanations of the decline in consumption after retirement: inadequate savings and substitution of time for money. Public policy should target the inadequate savings phenomenon in order to make food consumption more sustainable during retirement.

Comparison of Methods to Determine Nutrient Uptake of Tomato Grown in Free-Draining Perlite Substrate—Key Information for Optimal Fertigation Management

Two methods were compared to determine crop nutrient uptake by tomato crops in free-draining perlite substrate. They were the nutrient balance method (applied minus drained) and the dry matter method (DM) (nutrients in plant material). Uptake of N, P, K, Ca, Mg, and S was determined using both methods, in three consecutive tomato crops planted in the same perlite. Nutrient uptake determined using the balance method was consistently higher than with the DM method. Relative differences (balance minus dry matter, with respect to the DM method) were N: −1 to 16%, P: 27–45%, K: 14–46%, Ca: 17–87%, Mg: 28–111%, and S: 15–65%. There was a clear tendency for the difference between the methods to reduce with successive crops. The differences between the methods were reduced when the measured retention of nutrients in the perlite substrate and estimated nutrient retention in roots (using a model) were included. However, these data did not explain all of the observed differences between the two methods. Various retention and loss processes may explain the differences. The results suggest that the DM matter method estimates nutrient uptake by the crop, and the balance method estimates nutrient consumption by the cropping system.

Racial and Ethnic Minorities With Acute Pancreatitis Live in Neighborhoods With Higher Social Vulnerability Scores.

The primary objective was to determine differences in Social Vulnerability Index (SVI) scores among minorities (African-Americans and Hispanics) with acute pancreatitis (AP) compared with non-Hispanic whites (NHWs) with AP. The secondary objectives were to determine differences in diet, sulfidogenic bacteria gene copy numbers (gcn) and hydrogen sulfide (H2S) levels between the 2 groups. Patients with AP were enrolled during hospitalization (n = 54). Patient residential addresses were geocoded, and the Centers for Disease Control and Prevention's SVI scores were appended. Dietary intake and serum H2S levels were determined. Microbial DNAs were isolated from stool, and gcn of sulfidogenic bacteria were determined. Minorities had higher SVI scores compared with NHWs ( P = 0.006). They also had lower consumption of beneficial nutrients such as omega-3 fatty acids [stearidonic ( P = 0.019), and eicosapentaenoic acid ( P = 0.042)], vitamin D ( P = 0.025), and protein from seafood ( P = 0.031). Lastly, minorities had higher pan-dissimilatory sulfite reductase A ( pan-dsrA ) gcn ( P = 0.033) but no significant differences in H2S levels ( P = 0.226). Minorities with AP have higher SVI compared with NHWs with AP. Higher SVI scores, lower consumption of beneficial nutrients, and increased gcn of pan-dsrA in minorities with AP suggest that neighborhood vulnerability could be contributing to AP inequities.

The Income Distribution and Household Food Security of Beef Cattle Farmers in The Special Region of Yogyakarta, Indonesia

This research aimed to calculate income and its distribution as well as the food security rate and to analyze factors affecting food security rate of independent and profit-sharing farmers of beef cattle fattening in Special Region of Yogyakarta. An explanatory was used as the method for the research in Gunungkidul, Sleman, Bantul, and Kulonprogo Regencies by quota sampling on 120 independent and 120 profit-sharing farmers. Data were analyzed through income formulation, R/C Ratio, Gini Ratio, cross-classification of food expenditure share and energy consumption (Table of Jonsson and Toole), and ordered logistic model. The research results indicate that the incomes of independent and profit-sharing farmers were IDR1,079,033.00 and IDR1,023,324.00, lower than the Minimum Wage of Special Region of Yogyakarta which amounted to IDR1,337,645.25. The business was still accountable because the R/C ratio had a value larger than one. The values of the Gini Ratio of independent and sharing farmers were 0.310 and 0.219 which categorized as the low-scale unequal income distribution. Food security rates of independent and profit-sharing farmers were 22.5% and 13.33% of food secure, 15.83% and 18.33% of food vulnerable, 40.0% and 38.34% of less-secure food, and 21.67% and 30.0% of food insecure. The determining variables were the price of rice (p&lt;0.01), price of vegetable (p&lt;0.05), price of beef (p&lt;0.01), price of cooking oil (p&lt;0.05), and the price of instant noodle (p&lt;0.01), household income (p&gt;0.05), education dummy (p&lt;0.05), cattle group dummy (p&gt;0.05), the number of family member (p&lt;0.01), and the housewife education (p&gt;0.05).

Southern Ocean Biological Pump Role in Driving Holocene Atmospheric CO2: Reappraisal

AbstractChanges in Southern Ocean biological pump efficiency are frequently invoked as a source of glacial/interglacial CO2 variability. It was recently suggested that Southern Ocean biological pump weakening also contributed to Holocene CO2 increase. Here we test the causes and downstream effects of biological pump inefficiency during the Holocene. We first provide evidence that a southward shift of the South Westerly Winds, was likely the cause of increasing upwelling in the Southern Ocean leading to local biological pump weakening as reflected in fossil‐bound δ15N. We then introduce a series of ultra‐high resolution (6 m/ky) productivity records from the Chilean Margin to determine the fate of Southern Ocean nutrients. A compilation of records from Pacific sites supports export and complete consumption of preformed Southern Ocean nutrients, which might have reduced the contributions of Southern Ocean marine source to the Holocene increase in atmospheric CO2.

Effects of Organic Matter Addition on Soil Carbon Contents, CO2 Emissions, and Bacterial Compositions in a Paddy Field in South China

Increasing soil organic carbon (SOC) contents and reducing carbon dioxide (CO2) emissions in paddy soil fields can result in positive impacts on climate change mitigation and soil quality. However, SOC accumulation and its microbial driving factors under enhanced fertilization strategies (e.g., organic matter application) are still unclear. Therefore, we investigated the effects of organic matter addition on SOC variations, CO2 fluxes, and their relationships with soil bacterial compositions and functions through a 6-year fertilizer experiment in rice fields involving two fertilization types, namely chemical fertilizer (NPK) and chemical fertilizer combined with organic matter (NPK+OM). The results showed significantly higher and lower SOC contents (p &lt; 0.05) in the 10–20 cm soil layer under the NPK+OM treatment before rice transplanting and after rice harvest, respectively, than those under the NPK treatment. The lower SOC contents after rice harvest might be due to the great nutrient consumption, resulting in higher rice yields in the NPK+OM than those in the NPK treatment by 6.68 to 32.35%. Compared with NPK, NPK+OM reduced the in-situ CO2 fluxes by 38.70–118.59%. However, the ex-situ SOC mineralization rates were not affected by NPK+OM in the 0–10 and 10–20 cm soil layers. The 16S rRNA sequence indicated a significant increase in the abundance of non-singleton amplicon sequence variants (ASVs) in the NPK+OM treatment scenario compared to those in the NPK treatment scenario. The top three most important soil bacterial phylum influenced by NPK+OM were LCP-89, BRC1, and Rokubacteria in April, as well as Firmicutes, Nitrospinae, and BRC1 in July. Soil Actinobacteria was negatively correlated with the SOC contents in April and July. The results of the present study demonstrate the economic and ecological benefits of the organic matter addition in rice production, as well as the contribution of soil bacteria to SOC accumulation and CO2 emission reduction.