ABSTRACT The present study was conducted to determine soil properties affecting soil aggregate stability in southeast Iran. For this purpose, 169 soil samples were collected at 0–20 cm depth, and some soil properties such as soil bulk density (BD), electrical conductivity (EC), calcium carbonate equivalent (CCE), and soil organic matter (OM) were determined. Subsequently, soil aggregate stability (as

ABSTRACT A long-term experiment on conservation agriculture was designed to study different nitrogen dynamics in maize based cropping system at Research Farm, Bihar Agricultural University, Sabour dominated by Inceptisols in eastern Indo-Gangetic plains. The maize based cropping system was studied having various tillage (T1: Zero Tillage; T2: Permanent Raised Bed; T3: Conventional Tillage) and cropping

ABSTRACT Soil organic C (SOC) pools have various stabilization mechanisms and turnover times, which change with depth and are highly influenced by land use. Total SOC (TOC), particulate organic carbon (POC), mineral-associated organic carbon (MOC), and carbon management index (CMI) were used as indicators to compare cropland with manure application (CM) and continuous pasture (CP) to a hardwood forest

ABSTRACT Phosphorus availability and acid pH are major limiting factors for grass and crop production in the Andisols of Southern Chile. Sustainable management requires both the efficient use of fertilizers and the recycling of agricultural waste. The aim of this study was to investigate the effect of citrus waste, alone or in combination with beef cattle manure (CM), on phosphorus availability. Controlled

ABSTRACT A field experiment was conducted to assess the nutrients uptake pattern and partitioning of nutrient in banana cv. Rasthali (AAB) at critical growth stages like 10-leaf stage, 20-leaf stage, shooting stage and harvesting stage. From 10-leaf stage to harvesting, the per cent dry matter (DM) accumulation decreased from 43 to 22 in underground segment and increased from 57 to 78 in above ground

ABSTRACT Phosphorus (P) deficiency is an important nutritional constraint for crop productivity in alkaline-calcareous saline-sodic soils. Generally, farmers apply different P fertilizers to overcome P deficiency; however, different P fertilizers may have different efficiency in saline-sodic and normal soils. An experiment was conducted to investigate the comparative effect of phosphatic fertilizers

ABSTRACT Sustainability of cereal-based cropping system is important for the livelihood and food security in semi-arid regions. The present study explores the impact of long-term organic and inorganic nutrients and integrated fertilization practices of soil test crop response (STCR) approach of inductive-cum-targeted yield model on soil physical properties and its correlation with soil organic carbon

ABSTRACT Biological nitrogen fixation (BNF) is what makes soybean economically viable. However, the launch of cultivars, with a high-yield potential and abiotic factors that reduce BNF, raised doubts about the need for nitrogen (N) fertilizers for soybeans. The objective of the research was to evaluate the effects of nitrogen supply, in two application times in furrow starter fertilization and top-dressing

ABSTRACT Lead (Pb2+) sorption and desorption rates are the most important processes controlling the mobility and availability of this metal in soil. However, information about biochar addition on amounts and rates of Pb2+ sorption and desorption in calcareous soils is limited. In this study, the effect of application of 1% (w/w) walnut leaf biochar produced at 200 (B200), 400 (B400), and 600°C (B600)

ABSTRACT Copper (Cu) is an essential micronutrient that both deficient and excess concentration of this element can cause damages to plants. A greenhouse trial was conducted to investigate the effectiveness of brown coal application and magnetization of Cu-contaminated irrigation water on dry matter yield and Cu distribution in maize tissues. The greenhouse pot experiment was a factorial trial arranged

ABSTRACT Compost improves the physical, chemical, and biological properties of soils. The objectives of the present study were to determine (1) the impact of compost-amended substrate on transplant growth and mineral nutrition and, after transplanting, the effects on plant mineral nutrition and fruit yield in bell pepper and (2) the effects of preplanting compost application to the field on plant mineral

ABSTRACT Physicochemical characterization and a 300-day soil incubation was conducted to study the effect of a thermochemical organic fertilizer (TOF) produced from biowaste through rapid thermochemical processing technology on soil properties and nutrient release pattern at the Kerala Agricultural University, India. A field experiment to study the effect of TOF on the growth and yield of banana (Nendran)

ABSTRACT Biochar and compost are important organic amendment materials for modifying the distribution of pore size in soils. The main idea of this study was to investigate the impact of date palm biochar, compost and their combination on soil water parameters, pore size distribution curves and soil aggregates stability at the rates of 1%, 2%, 3% and 4% (10, 20, 30 and 40 g kg-1). In this study, shape

ABSTRACT The utilization of wastewater for agricultural irrigation has been widely accepted in China and other arid and semi-arid regions around the world. Effects of lateral depth and irrigation frequency on inorganic nitrogen yield and quality of Lactuca sativa var. augustana (asparagus lettuce) under drip irrigation with sewage effluent was examined in a solar-heated greenhouse in North China Plain

ABSTRACT Release of silicon (Si) from different Si sources and Si budgeting in varied types of soils are required for the exploration of sustainable rice production. Si products are shown to be effective in improving crop growth and yield; however, its reactivity differs based on the soil type. A pot experiment was conducted by using three Si sources (calcium silicate (CaSiO3), diatomaceous earth (DE)

ABSTRACT Irrigation water quality is a global agricultural management issue. High solution sodium adsorption ratio (SAR) and low electrical conductivity (EC) of irrigation waters decrease both hydraulic conductivity and aggregate stability. Little is known how solution EC and SAR affects soil mechanical properties. Three smectitic soils were treated with salt solutions made from sodium and calcium

ABSTRACT Tea polyphenols (TPs) may reach the soil through root secretions and the decomposition of fallen leaves in the tea garden ecosystem and may activate elements existing in the soil through complexation. We designed different epigallocatechin gallate (EGCG) concentration, residence time, and extraction reagent to determine the effect of these treatments on the mobilization of potassium (K), calcium

ABSTRACT The objective of this study was to determine the effects irrigation, fertilizer and manure on pore-water nutrient availability, rice yield and soil fertility improvement. The experiment was laid out in split plot design with a distribution of irrigation (I1: traditional irrigation, i.e. continuous flooding and I2: saturated condition) to the main plots and fertilizers to the sub plots. The

ABSTRACT Humic substances are increasingly used as biostimulants in agriculture because of their supposed effects on nutrient uptake and crop yield. The objective of this study was to assess the effect of fulvic acid (FA) and humic acid (HA) addition with and without fertilization (N, P, K, S, and Ca) on (i) grass yield (Poa trivialis) and nutrient uptake and (ii) composition of soil porewater and

ABSTRACT Chemical characterization of fertilizers, in terms of total nutrient content, is essential for quality control and definition of field-based rates. The Ministry of Agriculture, Livestock and Supply (MAPA) by IN/2007 recommends different methods for nutrient content extraction for fertilizers. These methods can have high analytical costs, be laborious, and generate large quantities of residues

ABSTRACT Plants are subjected to low use efficiency of water and nutrients in marginal lands such as calcareous soils. Moreover, plant wastes are not utilized optimally by the farmers. Hence, field trials were carried out in 2018 and 2019 summer seasons to find the practicable model which can be emerged through addition of sugar beet residues as mulching material and irrigation treatments in maize

ABSTRACT Common vetch plant (Vicia sativa L.) growth under various arsenic (As) loads was investigated in the clean (1st year cultivation) and As-contaminated soils (2nd year cultivation). The total dry weight (DW) of common vetch gradually increased by the application of low concentration of As-contaminated irrigation waters (IWs) while the decrease of total DW to lower than the control plant at high

ABSTRACT Saffron (Crocus sativus L.) is one of the most important crops produced globally, and in only a limited number of countries. Determining the best conditions for cultivating this crop is important. Prediction of saffron yield according to soil characteristics can help to evaluate the land’s ability to cultivate this valuable plant. To achieve this objective, 100 soil samples were taken. Physicochemical

ABSTRACT Field experiments were conducted during 2016 and 2017 cropping system to evaluate the performance of polymer-coated urea (PCU) viz. neam coated urea (NCU) at different doses. The experiment was conducted at the University Seed Farm, Usman, Tarn Taran, Punjab, India. Treatments comprised of T1 control, T2; 100% NCU in 3 splits T3 100% PCU in 3 splits T4; 100% PCU in 1 split, T5; 75% PCU in

ABSTRACT Spatial heterogeneity is a universal phenomenon existing in ecological systems at all scales. In the humid tropics, soil sampling and characterization are complex due to high spatial variability. The inability of researchers to capture this spatial variability inhibits the effective management of resources in terrestrial ecosystems. Hence, simple sampling approaches that are labor and cost-efficient

ABSTRACT Previously, studies of microbial fertilizer were mainly focused on isolation of the functional strains; the comparison among carriers of the fertilizer was seldom studied. In the current paper, we aimed to evaluate the effect of three carriers of microbial fertilizer in saline-alkaline soil. Two Bacillus strains and three carriers, namely activated carbon, spent mushroom substrate and peat

ABSTRACT Sulfur deficiency is recognized as a constraint to crop production all over the world from last decade. The soils of Northwestern Himalayas are also administering sulfur deficiency. To achieve higher yields with better nutritive quality, the plant fertilization management must include sulfur. Critical-level approach hardly advocated in vegetables, and no reports of critical limits of S were

ABSTRACT This study evaluated metal availability under acidic soil conditions and identified the solid phases that govern their solubility using Baker soil test. Free metal ion activity (Mn+) expressed as negative logarithm value (pMn+ = -log10 Mn+) of iron (pFe3+), manganese (pMn2+), copper (pCu2+), zinc (pZn2+), nickel (pNi2+), cadmium (pCd2+), and lead (pPb2+) ranged from 17.5 to 21.3, 5.2 to 8

ABSTRACT A field experiment was conducted to study the influence of foliar application of plant nutrition on yield attributes, yield and nutrient uptake of cotton (KC 3) at the Agricultural Research Station, Tamil Nadu Agricultural University, Kovilpatti during rabi season 2013–16. The experiment was laid out in a Randomized Block Design (RBD) comprising nine treatments replicated thrice under rainfed

ABSTRACT Zinc deficiency is a global nutritional problem which is caused by low dietary intake. Wheat is mostly low in bioavailable Zn and is sensitive to zinc deficiency compared with other grain crops and as a result is reflected as cereal with low Zn efficiency. Zn deficiency prevails in arid to semiarid regions of the world for reasons of less solubility and more fixation of Zn in these soil conditions

ABSTRACT Digested, undigested and green organic amendments were used to improve soil fertility and minimize any harmful effects. To understand the events in soil, we evaluated the nitrogen (N) and sulfur (S) mineralization in soil after adding with cattle manure and green manure. Eleven organic amendments were fresh dairy cattle manure, digested cattle manure with different temperature, green manure

ABSTRACT Crawfish aquaculture in low-lying paddy fields is implemented after middle-season rice is harvested, namely, Rice–crawfish rotation (RCR), and has been practiced for almost 30 years in Jianghan plain of China. However, little information is available on the effects RCR has on soil aggregates and water stability. Some soil properties were obtained by field sampling and analysis including mean

ABSTRACT Soil organic carbon (SOC) is highly sensitive to land use change and helps in maintaining soil quality. Changes in soil fertility status, SOC dynamics, and carbon indices were studied in a four-year experiment with nine sets of food-fodder cropping systems (CS) and three resource conservation techniques like rainfed (RC1), life saving irrigation (RC2) and in-situ moisture conservation practices

ABSTRACT Variable rate fertilization is one of the core technologies of precision agriculture, and it is particularly important to develop a representative field sampling scheme with less workload. A grid sampling of 1 m × 1 m was conducted on a pomegranate garden of 414 m2 in Nanzhuang Town, Jianshui County, Honghe Hani and Yi Autonomous Prefecture, Yunnan Province, and set up 7 groups of sample point

ABSTRACT High bicarbonate concentration in alkaline and calcareous soils is an important inducing factor of iron (Fe) chlorosis in plants. The purpose of this study was to investigate the effects of bicarbonate (15 and 30 mM) and Fe sources (FeEDTA and FeSO4.7 H2O) on vegetative growth and physiological traits of four grapevine cultivars in hydroponic systems. In this study a factorial experiment was

ABSTRACT Under various Arsenic (As) loads, growth of the tomato plant and changes in elemental uptake were investigated in this experimental study. Plants were transplanted into the As free soils and the loads of As were increased gradually with irrigation. The root and stem dry weights (DW) steadily increased with the increase of As concentration up to 1.5 mg L−1, while the DW dropped to lower than

ABSTRACT The long-term impact of integrated nutrient management (INM) experiment under cereal- vegetables- legume was undertaken to investigate the effect of organic and inorganic sources of nutrients with inclusion of microbial inoculants/biofertilizer and lime on different inorganic fractions of phosphorus (P) in acidic soil. The test crop maize was 17th crop in the sequence. The INM practices include

ABSTRACT The soil physicochemical properties and soil microbial community were affected by different fertilizer management. Fertilizer regime was closely related to soil texture and nutrient status in the double-cropping rice (Oryza sativa L.) paddy field of southern China. However, there was limited information about influence of long-term fertilizer management on soil microbial community in the double-cropping

ABSTRACT Due to reduced tillage practices, glyphosate is widely used as a herbicide in grain farming systems of Australia. Residual glyphosate when mixed with water bodies can be a health concern. Updated information concerning the fate of glyphosate in soil systems with biochar amendment is lacking. For this experiment, different biochars were weighed and premixed in 2 ml Eppendorf tubes. A solution

ABSTRACT The energetic state of water in the soil-plant system is a relevant theme in ecosystems affected by abiotic stress. Thus, the present study aimed to investigate the water potential in soil and in sorghum grown in Fluvisol irrigated with water of increasing electrical conductivity and different ionic compositions. Solutions were prepared with different ionic compositions (NaCl and a salt mix)

ABSTRACT Knowing the spatial distribution of nutritional status allows us to understand plants’ metabolic requirements and identify zones for differentiated management. Thus, the objective of this work was to use the fuzzy classification to standardize the values of macronutrients (N, P, K, Ca, Mg, and S) to construct the map of the average spatial distribution of nutritional status for Coffea canephora

ABSTRACT Nutrient deficiencies in calcareous soils are mostly related to high soil pH whereas sulfur supplement could facilitate nutrient element uptake by the crop plants. However, inefficient sulfur oxidation in soils is a limiting factor for this response. Mixing elemental sulfur with bentonite mineral can increase oxidation of sulfur since bentonite provides the sulfur particles with a better dispersion

ABSTRACT There is increased stress on soil and crop quality caused by machinery traffic during field operations in tillage systems, especially the area where the machinery turns, known as the headlands. While the influence of traffic on soil physical quality is understood, the impact on soil chemical quality and soil fertility is less so. Furthermore, correcting soil fertility and chemical quality

ABSTRACT Nickel is an essential micronutrient for leguminous plants. It has a large range between limiting and toxic levels. A pot experiment was conducted on two dominant soil series of Jharkhand i.e., Upland [Sidhamantoli (ST-5)] and Lowland [Tetratoli (TT-5)]. Five application levels of Ni, viz. 0.0, 2.5, 5.0, 10.0 and 20.0 mg kg−1 with pea (Pisum sativum L.) as test crop were arranged in three

ABSTRACT The effect of rice husk compost (RHC) on some soil properties, evapotranspiration (ETa), yield (Y) and water use efficiency (WUE) of tomato (Solanum lycopersicum L.) plant under the field and greenhouse conditions was investigated. In the experiments carried out at the experimental field and the greenhouse of Agricultural Faculty in Ondokuz Mayıs University, Samsun, Turkey. The RHC was applied

ABSTRACT Current trends in the intensification of olive cultivation including irrigation have dictated a need to reconsider amendment management practices. The addition of organic wastes to agricultural soils is becoming a common practice as a disposal strategy and to improve the physical and chemical soil properties This study examines physiological varieties of young olive trees (Olea europaea L

ABSTRACT Soil salinization is a common problem impacting plant physiology and agricultural productivities. In order to monitor soil salinization in plant physiological experiments, a salinity monitoring system – SProb – was produced to improve our understanding of plant responses to salinity, using open hardware Arduino platform. An experiment was performed and designed to calibrate and check the viability

ABSTRACT Date biochar (DB) was obtained by pyrolyzing date residues at four different temperatures (300, 400, 500, and 600°C referred as DB3; DB4; DB5; and DB6). Three experiments were performed: 1) assessment of wheat crop growth 2) water retention in the sandy soil 3) soil physiochemical properties after the application of DB to the soil. Results showed that the low temperature pyrolysis biochar

ABSTRACT Cadmium (Cd) contamination in agricultural soil is a global issue of concern because of its potential transfer to the human body through food chain interactions. Phosphate fertilizers used in the agricultural soils contain a high concentration of Cd. Composts are good sources of phosphorus, thus mixing of compost with phosphate fertilizer could reduce the total phosphate fertilizer use and

ABSTRACT Silicon (Si), depending on the application method, can benefit the growth of peanuts by stoichiometric modification of carbon (C); however, this is not yet well known in this culture. Therefore, the objective was to evaluate whether different application forms of Si increases the growth of peanut plants due to stoichiometric changes C/Si and consequently stomatal conductance and photosynthesis

ABSTRACT Soil compaction in the plow layer of soils is becoming a serious concern because of conventional tillage practices adopted by sugarcane growers utilizing a rotavator, particularly in medium to heavy textured soils. Continuous use of machinery causes compaction in the plow layer; thus strategic tillage practices have become an essential component in intensive agriculture. Keeping these points

ABSTRACT The present study was conducted in wheat to study effect of four tillage practices viz mold board plowing to a depth of 25 cm followed by rotavator (PT25 + R), mold board plowing to a depth of 14 cm followed by rotavator (PT14 + R), zero tillage with happy seeder (ZT) and conventional practices of 2 discing + 2 cultivator followed by planking (CT) along with irrigation scheduling on soil physical

ABSTRACT Biosolids are used to improve soil physical and chemical properties. Analysis of biosolids-amended soils from multiple regions of United States using consistent analytical methods is lacking. This Study determined long-term biosolids application on soil pH, electrical conductivity (EC), carbon, cadmium, copper, lead, and zinc concentrations in soils from two regions in United States. At one

ABSTRACT The replant disease refers to abnormal crop growth caused by continuous cultivation of the same or related species on the same soil, and often occurring in crops and orchards. Recently, replant disease have become a major factor constraining the sustainable development of global agriculture and fruit trees. The causes of replant disease include biological and abiotic factors, but in the final

ABSTRACT Agroecosystem functioning is dependent on practices that improves not only crop productivity but also soil quality. Therefore, identification of appropriate agricultural management strategies is a viable option. The objective of the current study was to assess the changes in pertinent soil quality indicators and their influence on crop productivity through crop residue (CR) retention and potassium

ABSTRACT Fertile soils available for agriculture are gradually diminishing due to climate change, soil deterioration, the use of wrong chemicals, and restraints from urban developments. In the near future, micro-organisms that promote plant growth are foreseen to replace chemicals in agricultural and environmental clean-up strategies. The present study was conducted to determine whether the effect

ABSTRACT Soil is an important natural resource, a medium for plant growth, and its quality is decisive for sustainable crop productivity. Soil biological properties in evergreen and deciduous fruit crops were estimated under subtropical region of north-west India; wherein, samples were taken from 0–20 to 0–40 cm soil layers. In the present study, total soil organic carbon (TSOC) and carbon (C) pools

ABSTRACT The massive use of inputs is often applied in common bean for nitrogen (N) supply, better plant development, and to prevent plant disease. Instead, the co-inoculation of Rhizobium, Azospirillum and Trichoderma may play the same role; however, its effects are unknown in common bean. This work aimed to evaluate the effects of co-inoculating three microorganisms on the development, nodulation

ABSTRACT Silicon, the second most abundant element on the Earth crust, is often considered beneficial for plant nutrition. However, plant available fraction of silicon (Si) is hard to find and extract from many types soils. Soil reaction (pH), temperature and plant uptake are some of the major determinants of Si availability affecting its extraction from soil. In this experiment, neutral, acidic and

ABSTRACT Silicon (Si) is classified as a beneficial element in higher plants. Although there is an abundance of literature on Si extraction and analysis in graminaceous crops such as rice and sugarcane, there is limited information on the validation of these methods for most dicotyledonous horticultural crops. These methods include gravimetric extraction, which requires a larger sample size the smaller