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26 real negative results, null findings, and replication failures in Agriculture (General) · Negative / Null Result Report. Search the index →

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result ReportOpen accessAgriculture (General)

EFFECT OF BIO HEALTH, TECAMIN MAX AND BENZYL ADENINE ON GROWTH CHARACTERISTICS OF SWEET ORANGE SEEDLINGS

A. S. Abdulrhman, Sh. M. M. Al-Atrushy · 2024 · The Iraqi Journal of Agricultural science

This investigation was aimed to study the effect of soil application of Bio health and foliar application with Tecamin max and Benzyl adenine on growth characteristic of sweet orange (Citrus sinensis L.) seedlings during two successive seasons (2020 and 2021). Bio health was added with three concentrations (0, 6 and 12 g.L-1) to the soil and foliar application of Tecamin max with three concentration (0, 5 and 10 ml.L-1), Benzyl adenine with three concentration (0, 100 and 200 mg. L-1) on the sweet orange seedlings which were brought from private nursery in Duhok city and have two- years old an

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Negative / Null Result ReportOpen accessAgriculture (General)

Insecticides in Bait Spray Solutions: Validation, Determination, and Stability: The Role of Trophic Attractants

Eleftheria Bempelou, Kyriaki Varikou, Antonios Nikolakakis et al. · 2026 · Agriculture

In Greece, the protection of olive orchards against the olive fruit fly ( Bactrocera oleae ), the most serious pest of olive fruits, is implemented through a national control program. This program is implemented by the Ministry of Rural Development and Food in co-operation with various public and private organizations. A new approach followed for this goal is the use of insecticide spray solutions combined with trophic attractant to attract and kill the olive fruit fly. In the present study, a method for the determination of the major insecticides, lambda-cyhalothrin and Spinosad, in their spr

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Negative / Null Result ReportOpen accessAgriculture (General)

Fermented Aloe vera Juice: A Prebiotic Potential and Metabolite Profile Analysis

Silvana Nurulfauziyyah Indahsari, Siti Nur Jannah, Arina Tri Lunggani et al. · 2025 · Agritech

Probiotics are health-beneficial microorganisms found in the human digestive tract, and Aloe vera (Aloe vera var. chinensis (L.) Baker) is potentially a source of prebiotics that support the growth of probiotics. Therefore, this research aims to analyze the effect of Aloe vera juice on Lactobacillus rhamnosus ATCC 9595 growth, total lactic acid, total reducing sugars, antioxidant activity, total Short Chain Fatty Acid (SCFA), and metabolite profile. Four experimental groups of Aloe vera concentration were used (0%, 25%, 50%, and 75%), each with three different incubation times (0, 24, and 48 h

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Negative / Null Result ReportOpen accessAgriculture (General)

Zmiany chemicznych właściwości gleby w zależności od systemu nawożenia

Stanisław Sienkiewicz, Sławomir Krzebietke, Jadwiga Wierzbowska et al. · 2004 · Agronomy Science

The objective of the study was to determine modifications in the content of available nutrients, organic carbon, total nitrogen and mineral forms of nitrogen occurring under the effect of long-term mineral and mineral-organic fertilization. The experiments were carried out on two fields between 1998 and 2001. They covered the fourth rotation of a long-term field trial established in 1986. On grey-brown podzolic soil formed from loamy clay, the following crops were grown in rotation: sugar beet, spring barley, maize and spring wheat. The soil analyses carried out prior to the tests showed that

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Negative / Null Result ReportOpen accessAgriculture (General)

Effects of extreme climate on hydrological dynamics in dryland apple orchards: a modeling study

Yumeng Yang, Qi Liu, Xiaodong Gao et al. · 2026 · Agricultural Water Management

In the past decades, extreme precipitation and drought have increased in both intensity and frequency in global drylands, threatening the sustainability of agricultural systems. To address this challenge, this study refined the process-oriented STEMMUS (simultaneous transfer of energy, mass, and momentum in unsaturated soil) model by introducing a dynamic leaf area index (LAI) development sub-module, and defined scenarios incorporating variations in precipitation amount, precipitation intensity, and temperature. These scenarios elucidate the response patterns of shallow and deep soil moisture

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Negative / Null Result ReportOpen accessAgriculture (General)

Root, Yield, and Quality of Alfalfa Affected by Soil Salinity in Northwest China

Yuan Qiu, Yamin Wang, Yaqiong Fan et al. · 2023 · Agriculture

Growing crops in salt-affected soils has become increasingly important for sustainable development in arid and semi-arid regions. Knowledge on the responses of alfalfa root development, yield, and quality to soil salinity is critical for assessing the productivity and profitability of salt-affected soils. A field experiment with a total of six treatments combining three soil salinity levels and two biosolids fertilizer levels was conducted in 2018 and 2019 in northwest China. For salinity treatments, the salt addition rates were 2‰, 4‰, and 6‰ of 0–60 cm soil dry weight, while a commercial bio

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Negative / Null Result ReportOpen accessAgriculture (General)

Study on Illumination Intensity and Duration of LED Light Sources for a Weaned Piglet House without Natural Light

Yaqiong Zeng, Dingbiao Long, Bin Hu et al. · 2023 · Agriculture

Lighting is an important environmental parameter in livestock farming, which can affect the physiology and behavior of animals, and it can regulate animal production. To explore the comprehensive effects of light intensity and duration on the performance, behavior, and physiological indicators of piglets, a 3 × 2 two-factor experiment (three levels of lighting intensity × two lighting durations) was conducted. The three light intensities used were high (100–120 lux), medium (40–50 lux), and low (5–20 lux). The two lighting durations were 8 h and 10 h of light per day. The experiment used a tot

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Negative / Null Result ReportOpen accessAgriculture (General)

Water absorbent polymer in sugarcane crop Polímeros hidroabsorventes em cultura canavieira

Tadeu A. Marques, Patricia A. A. Marques, Marcos W. Suriani et al. · 2013 · Engenharia Agrícola

The water absorbent polymer effect on vegetative growth and production of Theoretical Recovery Sugar (TRS) of sugarcane cv. RB 86 7515 was evaluated on two field tests installed in randomized blocks, with four treatments and five repetitions. The polymer doses were 0; 4; 8 and 12 g m-1 of furrow (test 1) and 0; 1.4; 2.8 and 4.2 g m-1 of furrow (test 2). Test 1 (dec/2007 to may/2009) was implanted in a Distroferric Red Argisol soil in Presidente Prudente - State of São Paulo (SP), Brazil; and the test 2 (Aug/2008 to Aug/2009) was implanted in a Red Yellow Argisol soil in Lucélia - State of São

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Negative / Null Result ReportOpen accessAgriculture (General)

Integrated impacts of irrigation and nitrogen management for balancing winter wheat yield and greenhouse gas emissions

Hongzheng Shen, Shilei Li, Kexin Sun et al. · 2023 · Crop and Environment

Irrigation and nitrogen (N) input are effective methods of balancing crop yields and greenhouse gas (GHG) emissions. However, the effects of irrigation and N management on the GHG emission of winter wheat production systems have not yet been well documented. Therefore, we conducted 2-year field experiments on winter wheat and studied the effects of irrigation and N reduction/replacement on GHG emissions, grain yield, global warming potential (GWP), and GHG emission intensity (GHGI). The winter wheat was irrigated once or twice with 60 or 90 ​mm each time. Five N reduction/replacement treatment

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Negative / Null Result ReportOpen accessAgriculture (General)

Controle da podridão parda do pessegueiro com fungicidas e fosfitos avaliados em pré e pós-colheita Control of peach tree brown rot by fungicides and phosphites evaluated during preharvest and postharvest

Luciene Martins Moreira, Louise Larissa May-de Mio · 2009 · Ciência e Agrotecnologia

A podridão parda é a doença mais importante para a cultura do pessegueiro, entretanto, no Brasil são escassos os trabalhos realizados a campo visando o seu controle. Objetivou-se, neste trabalho, selecionar fungicidas em laboratório e avaliar a sua eficiência e de fosfitos a campo, para o controle da podridão parda monitorando as fases de desenvolvimento de frutos e pós-colheita, além de avaliar as características qualitativas dos frutos. O experimento de campo foi realizado com seis tratamentos e quatro repetições: três fungicidas pré-selecionados in vitro (iminoctadine tris albesilate, myclo

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Negative / Null Result ReportOpen accessAgriculture (General)

Effects of Magnetization Irrigation on Photosynthesis, Mineral Elements and Yield of Lettuce Vary with Water Sources

WANG Xiaofan, WU Yong, ZHANG ZHONG Lili et al. · 2021 · Guan'gai paishui xuebao

【Background and Objective】 Magnetizing the water prior to irrigation is a new technology developed over the past decades in China. The objective of this paper is to investigate how different irrigation water sources alter the effects of the magnetization on photosynthesis, physiological and biochemical characteristics, as well as the yield of lettuce. 【Method】 The experiment was conducted in a solar greenhouse with the Italian lettuce taken as the model plant. It consisted of non-magnetization (M0) and magnetization (M1); added to these are three irrigation water sources: fresh water (T1), rec

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Negative / Null Result ReportOpen accessAgriculture (General)

Características de carcaça e qualidade de carne de novilhos superprecoces de três grupos genéticos Carcass characteristics and beef quality of young bulls from three genetic groups

Patrícia Maria Ribeiro Campos Pereira, Marcos Franke Pinto, Urbano Gomes Pinto de Abreu et al. · 2009 · Pesquisa Agropecuária Brasileira

O objetivo deste trabalho foi avaliar parâmetros de carcaça, características físico-químicas e de qualidade de carne de novilhos machos superprecoces. Foram avaliados três grupos raciais com 8 animais Nelore (N), 18 ¼ Abeerden Angus ½ Nelore (AN) e 18 ½ Limousin ¼ Abeerden Angus ¼ Nelore (LAN), com idade entre 7,5 e 11,5 meses no início do experimento, abatidos após 143 dias de confinamento. Os animais AN apresentaram maior peso ao abate, ganho médio diário de peso, peso de carcaça e comprimento de carcaça; os animais LAN apresentaram maior rendimento de carcaça e área de olho de lombo. Os ani

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Negative / Null Result ReportOpen accessAgriculture (General)

Distribution and Stability of Soil Aggregates over the Fissure Zones in Reclaimed Coal Mining Waste Dumpsite

LI Yexin, LYU Gang, WANG Daohan et al. · 2023 · Guan'gai paishui xuebao

【Objective】 Restoring coal mining waste dumps is a way to alleviate their detrimental impact on environment. In this paper, we present the results of an experimental study on distribution and stability of soil aggregates in a reclaimed coal mining overburden dump. 【Method】 The experiment was carried out at a reclaimed coal mine dump site in a grassland region in northern China. We measured the development of fissures from Zone I (GF) to Zone three (GFIII) in the fissure zone. The composition and distribution soil aggregates in these zones were determined using dry-wet sieve method. Aggregate s

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Negative / Null Result ReportOpen accessAgriculture (General)

Intermittent sprinkler irrigation during the establishment of strawberry (Fragaria ×ananassa Duch.) bare-root transplants conserves water without loss of yield and fruit quality

Junaid Mushtaq Lone, Shinsuke Agehara, Amr Abd-Elrahman · 2024 · Agricultural Water Management

Commercial strawberry (Fragaria ×ananassa Duch.) production in Florida relies heavily on bare-root transplants, which typically have 3–5 leaves with partially desiccated roots. Successful establishment requires sprinkler irrigation during daylight hours for the first 10–14 days, leading to substantial water consumption. To address this issue, we evaluated the efficacy of intermittent sprinkler irrigation as a water conservation strategy. We conducted field experiments over two growing seasons [Season 1 (2021–22) and Season 2 (2022–23)] in west-central Florida using three major strawberry culti

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Negative / Null Result ReportOpen accessAgriculture (General)

The effect of inoculation (plating) together with the use of boron and molybdenum micro fertilizers on productivity of common vetch seeds

V. N. Zolotarev · 2018 · Зерновое хозяйство России

The effect of inoculation (plating) together with the use of boron and molybdenum micro fertilizers on productivity of common vetch seeds The article deals with the study of the effect of inoculation (plating) of the grain forage common vetch variety ‘Lugovskaya 98’ made by the production strains of nodule bacteria №112,142,145 in the combination with boron and molybdenum micro fertilizers on the formation of grass stand structure and productivity. It has been determined that the variety possesses a high susceptibility to plant-rhizobial interaction with nodule bacteria №142 or 145 and respons

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Negative / Null Result ReportOpen accessAgriculture (General)

Pot Experiments Overestimate Mercury Accumulation in Rice: Evidence from Multi-Year Field Validation

Lingxiao Zhang, Jinlong Dong, Xiao Ma et al. · 2026 · Agriculture

The uptake and accumulation of mercury (Hg) in rice poses a serious threat to food safety. Pot experiments are widely used to screen for low-Hg-accumulating cultivars, yet their reliability in predicting field performance remains uncertain. This study evaluated pot-based screening by (1) comparing Hg uptake in rice grown in freshly processed versus aged soil; (2) contrasting Hg accumulation in the same cultivars grown in pots versus at two field sites; and (3) isolating micro-environmental effects by burying pots in situ. A total of 22 rice cultivars were used during 2021–2023 in this study. P

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Negative / Null Result ReportOpen accessAgriculture (General)

Technological and sensory quality of restructured low-fat cooked ham containing liquid whey Características tecnológicas e sensoriais de apresuntados com baixo teor de gordura elaborados com soro de leite

Monalisa Pereira Dutra, Giselle Pereira Cardoso, Eduardo Mendes Ramos et al. · 2012 · Ciência e Agrotecnologia

The use of liquid whey to replace water (at 0, 25, 50, 75 or 100%) in a restructured cooked ham formulation was studied and several technological and sensory quality properties were determined. The test results showed no statistically significant differences (P 0.05) less reddish (a* value reduction) and more grayish and yellowish (lesser C* and higher h values) with higher whey additions. A lower (P 0.05). These results suggest that up to 38% natural fresh liquid whey can be added to a restructured cooked ham formulation with similar results to products cured with a conventional formulation.

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Negative / Null Result ReportOpen accessAgriculture (General)

Laboratory study of the nutrient release rate for vinasse on sandy soil and three coastal clay soils of Guyana

Clairmont Clementson, Lalita Gopaul · 2020 · International Journal of Recycling of Organic Waste in Agriculture

Purpose Vinasse is produced in large quantities as a by-product from bioethanol production. To ensure environmental sustainability, a beneficial use was sought. Previous study showed that short-term crops grown with vinasse-amended soil provided higher yield than crops treated with chemical NPK (15:15:15) fertilizer. To understand this phenomenon, this study sought to establish the nutrient release rates of vinasse in the agricultural soils of Guyana. Methods Soils representative of the three most common and one futuristic agricultural land in Guyana were fertilized with vinasse, then watered

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Negative / Null Result ReportOpen accessAgriculture (General)

Evaluation of Reuse of Spent Mushroom Substrate for New Pleurotus ostreatus Crop Cycle

Wagner Gonçalves Vieira Junior, Lucas da Silva Alves, Jadson Belém de Moura et al. · 2025 · AgriEngineering

Although considered relatively sustainable, mushroom production generates significant waste at the end of cultivation. This study investigated the reuse of Spent Mushroom Substrate (SMS) to formulate new substrates for Pleurotus ostreatus cultivation. Substrates with high (higher bran content) and low (lower bran content) nitrogen levels were prepared and supplemented with 5%, 10%, or 20% SMS across three successive cycles P. ostreatus crops. Cultivation performance was evaluated based on biological efficiency, number of mushrooms, fresh weight, and number of clusters. Substrates were chemical

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Negative / Null Result ReportOpen accessAgriculture (General)

Estimation of aboveground biomass of Alfalfa using field robotics

Jasanmol Singh, Ali Bulent Koc, Matias Jose Aguerre et al. · 2024 · Smart Agricultural Technology

Alfalfa is a high-yielding forage crop that is widely grown in the United States for grazing, hay and silage making. A proper maintenance of these grasslands is necessary to ensure optimum productivity and profits. The pre-harvest estimation of biomass yield helps in quantifying the profits and optimizing the forage allocation in advance. Most traditional methods of forage estimation are relatively laborious and time-consuming. Recent developments in contact and remote sensing technologies opened numerous paths for performing aboveground biomass estimation tasks with flexibility and easiness.

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Negative / Null Result ReportOpen accessAgriculture (General)

The Effect of Combined Use of Vermicompost and Poultry Manure on the Growth and Yield of Cucumber Plants in Different Conditions of Deficit Irrigation

M. Behdarnejad, H. Piri, M. Delbari · 2023 · مجله آب و خاک

Introduction In sustainable farming systems, the use of organic fertilizers is of particular importance in increasing crop production and maintaining sustainable soil fertility. Nowadays, the consumption of organic foods is introduced to consumers as an alternative. The result of the application of chemical products is the crisis of environmental pollution, soil and water resources, and the health risk to human society. Nowadays, in order to reduce the effects of misuse of chemical inputs, chemical fertilizers can be replaced with organic biological fertilizers, including animal manure, compos

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Negative / Null Result ReportOpen accessAgriculture (General)

The Effect of Marketing Mix and Reference Group on Chicken Nugget Preference Through Brand Image

R. Syaprudin, Megawati Simanjuntak, Heny Kuswanti Suwarsinah · 2023 · Jurnal Manajemen & Agribisnis

Due to the increasingly fast-paced lifestyles and busy lives of urban citizens, the demand for chicken nuggets has continued to rise. This study aims to analyze the effect of the marketing mix (product, place, price, promotion) and the reference group on consumer preference for chicken nuggets through the brand image formed in the market. The respondents consisted of 251 individuals who were selected through voluntary sampling. These respondents were people who had consumed Fiesta and So Good brand chicken nuggets in the last three months. Data were collected through an online questionnaire an

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Negative / Null Result ReportOpen accessAgriculture (General)

Combined effects of landscape composition and pesticide use on herbivore and pollinator functions in smallholder farms

Quentin Struelens, Diego Mina, Olivier Dangles · 2021 · CABI Agriculture and Bioscience

Abstract Background Landscape composition has the potential to foster regulating ecosystem services such as pollination and biocontrol in temperate regions. However, most landscape studies do not take pesticide use into account even though it is the main control strategy worldwide and has negative impacts on beneficial insects. Moreover, few studies have explored these combined effects in smallholder cropping system with diverse landscapes and small cultivated fields. Methods We assessed the effect of semi-natural cover and pesticide use on pollinator and herbivore abundances and functions in

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Negative / Null Result ReportOpen accessAgriculture (General)

Differential Soil Organic Carbon Accumulation Patterns Following Cropland-to-Grassland Conversion in Non-Saline and Saline–Alkali Soils

Jinglei Zhang, Shanshan Bai, Chunlin Jia et al. · 2025 · Agriculture

Agricultural expansion and intensification generally lead to a depletion in soil organic carbon (SOC). While converting cropland to grassland is a recognized strategy for SOC accumulation, the patterns of SOC accumulation under different grassland types and soil conditions remain unclear. This study evaluated the long-term effects of two perennial grasses—alfalfa (a legume) and switchgrass (a non-legume)—on SOC composition, specifically lignin phenols and amino sugars, in non-saline and saline–alkali soils, using a conventional wheat–maize rotation as a control. Our results showed that both al

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Negative / Null Result ReportOpen accessAgriculture (General)

Índíces de conforto térmico e concentração de gases em galpões avícolas no semiárido Paraibano Indices of thermal comfort and gases concentration in broilers houses in the semiarid region, Brazil

Dermeval A. Furtado, Herlucio P. Rocha, José W. B. Nascimento et al. · 2010 · Engenharia Agrícola

Esta pesquisa teve o objetivo de determinar os índices de conforto térmico e a concentração de gases no interior de galpões avícolas e suas influencias sobre o desempenho de frangos de corte comercias, em condições de verão, na região semiárida paraibana. Utilizaram-se dois aviários, um coberto com telha de cerâmica e outro coberto com telha de fibrocimento. Observou-se que não houve diferença significativa (p > 0,05) entre a temperatura ambiente (TA), umidade relativa do ar (UR), temperatura da água de bebida (Tágua) e da cama entre os galpões, sendo que os valores médios de TA (das 8h às 17h

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Negative / Null Result ReportOpen accessAgriculture (General)

Cotton Yield and Water Productivity Affected by Conservation Tillage and Irrigation Methods in Cotton-Wheat Rotation

S Afzalinia, A Ziaee · 2020 · Journal of Agricultural Machinery

In this study, the effect of conservation tillage and irrigation methods on the soil properties, cotton yield, and water productivity was evaluated in a wheat-cotton cropping system in the form of a split-plot experimental design. The main plots were irrigation using the three methods including surface irrigation, drip tape irrigation, and sprinkler irrigation. Tillage methods including zero tillage, reduced tillage, and conventional tillage were considered as subplots in this research. Results showed that tillage methods had no significant effect on cotton yield; whereas, the cotton yield was

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