Use of saline water for irrigation is essential to mitigate increasing agricultural demands in arid and semi-arid regions. The objective this study address the potential using straw biochar as a soil amendment promote wheat production under irrigation. A field experiment was conducted clay loam from eastern China during 2016/2017 2017/2018 winter season. There were five treatments: freshwater (0.3 dS m−1), (10 m−1) combined with 10, 20, 30 t ha−1. Saline alone caused salinization decreased...

Saline water resources are abundant in the coastal areas of south China. Most these still have not been effectively utilized. A 3-year study on effects saline irrigation tomato yield, quality and blossom-end rot (BER) was conducted at different lower limits soil matric potential (-10 kPa, -20 -30 -40 kPa -50 kPa). differing electrical conductivity (EC) (3 dS/m, 4 4.5 5 dS/m 5.5 dS/m) supplied to plant after seedling establishment. In all three years, with salinity reduced maximum leaf area...

Moistubes continuously irrigate crop-root zone through tube nanopores, as required based on crop water demand. This study investigated the soil dynamics under adjusted working pressure heads (WPHs) in Moistube and revealed whether wetting patterns moisture distribution can be artificially regulated. Six scenarios of adjustments were designed, WPH increase from 0 to 1, 0–2, 1–2 m, decrease 1 0, 2–0, 2–1 m. Wetting analyzed using image processing. discharge within analyzed. Results...

Saline water irrigation has been considered a useful practice to overcome the freshwater shortage in arid and semi-arid regions. Assessing scheduling appropriate amount, salinity, timing is essential maintaining crop yield soil sustainability when using saline agriculture. A field experiment that included two levels (traditional deficit irrigation) three salinities (0, 5, 10 dS/m) was carried out North China Plain during 2017/18 2018/19 winter wheat growing seasons. AquaCrop used simulate...

Preferential pathways in soil lead to nutrient leaching and groundwater contamination. However, the evolution of preferential flow with straw application remains uncertain. This study aims experimentally determine hypothesis that, depending on how it is applied, will either promote or inhibit movement flow. Treatments rates 0, 5, 10, 15 t/ha decomposition time points 60, 240 d were set up for potassium iodide–starch dye-tracer method. The results showed that rate slowed down later stages. At...

To identify effective regulatory methods scheduling with the compromise between soil desalination and improvement of tomato quality yield, a 3-year field experiment was conducted to evaluate compare effect straw mulching structure conditioner water-retaining agent on greenhouse saline soils, quality, yield. A higher salt removing rate 80.72% in plough layer obtained based observation mass fraction 0~20 cm before after experiment. Salts were also found move gradually deeper time. Straw...

To investigate better saline water irrigation scheme for tomatoes that scheduling with the compromise among yield (Yt), quality, use efficiency (IWUE) and soil salt residual, an experiment three quotas salinities of was conducted under straw mulching in northern China. The quota levels were 280 mm (W1), 320 (W2) 360 (W3), salinity 1.0 dS/m (F), 3.0 (S1) 5.0 (S2). Compared to freshwater, irrigations decreased maximum leaf area index (LAIm) tomatoes, LAIm presented a decline tendency higher...

The coastal regions of eastern China have substantial potential for agricultural production. Freshwater scarcity makes the utilization plentiful brackish water a vital issue in this area. We aim to assess effects cycle irrigation with fresh and on soil salinity maize ( Zea mays L.). A pot experiment was performed two typical soils (sandy loam silt loam) one local cultivar. growing season divided into three phases (development, mid‐, later stage). Cycle conducted using (5 g NaCl L −1 ) during...

The considerably high evapotranspiration and the low leaching fraction of soil in arid regions are likely primary causes enhanced salinity such regions. Winter irrigation has proven to be very effective for promoting salts from rooting-zone. In this study, we investigated effects different methods (flood drip irrigation) winter quotas (450, 1350, 2250, 3150, 4050, 4950 m3/hm2) on plant growth an region. sum ECe 0–100 cm layer was 56.26–29.32 ms/cm under flood irrigation, 61.37–17.90 64.13 no...

Numerous indicators under the plant-soil system should be taken into consideration when developing an appropriate agricultural water conservancy project. Entropy evaluation method offers excellent prospects in optimizing management schemes. To investigate impact of different buried depths (30, 45, 60, 75, 90, and 105 cm) subsurface drainage pipes on greenhouse systems, tomato was employed as plant material, marketable yield, fruit sugar to acid ratio, soil electrical conductivity, nitrogen...

Sheath blight, which is caused by Rhizoctonia solani, a disease that majorly impacts rice production. A biocontrol agent used for control sheath blight must be sprayed on the stem at specific times during growth, process labour-intensive and renders antagonist vulnerable to environmental factors. In this study, Trichoderma asperellum T12 was produce preparation solid-state fermentation using surface-response method. Rice hull selected as carrier based its ability sustain floating in water...

The scarcity of good-quality water is forcing the use brackish for irrigation in many areas around world. Alternate fresh- and a feasible method (IM). A pot experiment was carried out with three IMs at levels (1, 3 5 g NaCl L−1). various waters were irrigated seedling stage, jointing tasseling stage after respectively. responses maize (Zea mays L.) to alternate investigated through gas exchange chlorophyll fluorescence. results showed that reduced increasing soil salinity caused by...

Moistube irrigation is an efficient method that accurately irrigates and fertilizes agricultural crops. Investigation into the mechanisms of infiltration behaviors under adjusted working head (WKH) benefits a timely artificially regulating moisture condition within root zones, as adapted to evapotranspiration. This study explores laws irrigated soil water movement constant heads. Lysimeter experiments were conducted measure cumulative infiltration, rate, observe wetting front area content...

Abstract. With growing competition for freshwater by industrialization and urbanization, brackish water irrigation has been increasingly used agricultural production. One of major concerns is the accumulation salt its impacts on soil properties crop yield. If properly managed, alternate with might alleviate adverse physicochemical plant growth. To exploit proper to minimize such impacts, a maize pot experiment was conducted at three stages (seedling, jointing tasseling, after tasseling)...

The aim of this study is to understand the effect subsurface drainage on salts greenhouse soils, tomato yield and quality. Different layout schemes with various pipe depth (0.6 0.8 m) space (6, 8 10 were designed, Electrical Conductivity (EC) topsoil soil during different periods, main quality indexes (soluble solids, total acid, vitamin C, sugar/acid ratio) observed. results showed that: EC values a fluctuating decline trend, D2S1 treatment obtained best salt removing, removal rate 50.87%;...

Organic fertilizer applications and subsurface drainage are two important measures for improving coastal saline soil; however, nitrous oxide (N2O) emissions from soil under a combination of these seldom evaluated. In this study, cultivated with sunflowers (Helianthus annuus L.) was employed as an experimental system. Prior to the experiment, soils were buried three different spacings (10 m (S1), 15 (S2), 20 (S3)) pipes. The nitrogen nutrients that needed by came sources (organic inorganic...

In order to explore how the land treatment of rural sewage affects soil environment and flue-cured tobacco quality, pretreated collected from areas south China were directly discharged experimental fields microbial number, enzymatic activities soils with different distance away outlet depth observed; besides, diluted proportions applied for cultivations tobacco, afterwards, leaves at maturity harvested quality evaluation Principle Component Analysis (<em>PCA</em>) method was adopted select...

In order to simulate the dynamic changes of flue-cured tobacco leaf area index (LAI) and predict yield under different salinity fertilizer levels, a field experiment with six treatments for tobaccos was carried out at plastic sheet covered greenhouse in south China, three models including linear model, exponential model crop growth were used LAI varying days after transplanted. Results showed that change presented single-peak curve, could be divided into stages, slower period, acceleration...

A well-designed subsurface drainage system with reasonable drain space and depth contributes to large ratio of desalination high crop yield. In order find out the optimal tubes for tomato cultivation in greenhouse salty soils south China, treatments different buried methods were designed, quality, yield, Irrigation Water Use Efficiency (<em>IWUE</em>) surface soil electricity conductivity observed during 2010 2012 growth seasons principle component analysis model projection pursuit used...