scholarly journals Humic acid and boron treatment to mitigate salt stress on the melon plant

2018 ◽  
Vol 111 (2) ◽  
pp. 349 ◽  
Author(s):  
Osama Abd El-Salam SHALABY ◽  
Mohamed Moustafa EL-MESSAIRY
Keyword(s):  
Salt Stress ◽  
Humic Acid ◽  
Combined Treatment ◽  
Total Yield ◽  
Nutrient Content ◽  
Dry Mass ◽  
Stress Factors ◽  
Soluble Solids ◽  
Growth And Yield ◽  
Control Group

<p>Salinity is one of the main abiotic stress factors which limit the growth and productivity of plants, however, the nutritional status of plants is the first brick in the resistance wall against stresses. Therefore, a factorial experiment was undertaken to investigate effects of soil applied humic acid (0, 7, 14, 21 l.ha<sup>-1</sup>) and boron foliar spraying (0, 50, 100 ppm) and their interaction on growth and yield of melon plant under saline conditions. The results suggested that the treatments soil application of humic acid and the boron spraying successfully mitigated the deleterious effects of salt stress and influenced growth and yield of melon plant. Humic acid at 21 l.ha<sup>-1</sup> or boron spray at 50 ppm exhibited an improvement in growth and yield of melon, in terms of plant length, plant fresh and dry mass, chlorophyll (SPAD), fruit mass, total yield, and also leaf nutrient content (N and K) and total soluble solids (TSS) of fruits, while reduced the sodium content of leaves. The combined treatment of humic acid at 21 l.ha<sup>-1</sup> and boron spraying at 50 ppm was found to be more effective for the melon plant to improving growth performance and the crop yield by 21 % as compared with the control group under saline conditions.</p>

scholarly journals The Effect of leaves Feeding with Heomic Acid in Some Growth and Producing Properties of Sun Flower Plant. Helianthus annuus L: تأثير التغذية الورقية بحامض الهيوميك في بعض صفات النمو والحاصل لنبات زهرة الشمس .Helianthus annuus L

2017 ◽  
Vol 1 (4) ◽  
Author(s):  
Ali Moutcher Murzah Al-Shamri - Najm Abdullah Juma Al - Zuba
Keyword(s):  
Humic Acid ◽  
Helianthus Annuus ◽  
Block Design ◽  
Total Yield ◽  
Dry Weight ◽  
Growth And Yield ◽  
Helianthus Annuus L ◽  
Flower Plant ◽  
Loam Soil ◽  
Four Levels

A factorial experiment was applied according to Randomized Complete Block Design (R.C.B.D) with three replications, during the spring season 2017 in Diyala / Baquba / Buhriz city, using silt loam soil to study the effect of four levels of foliar fertilization with humic acid 0, 2, 4, 6 ml.L-1 in the growth and yield of sunflower, Helianthus annuus  L. (LuLeo). The results showed significant differences for level of humic acid 6 ml.L-1 in plant height which gave an average 213.73 cm, leaf area of the plant 5597.32 cm2, chlorophyll index 48.64 SPAD, dry weight of the plant 215.0 g, number of seeds in the flowery disc 1494 seed.disc-1, 1000 seeds weight 88.3 g, plant yield 127.91 g.plant-1, total yield 6.81 ton.h-1 and oil percentage in the seeds 43.184%, while the level 4 ml.L-1 humic acid gave the highest average for the protein percentage in the seeds 18.34%.

scholarly journals Effects on Soybean Growth and Yield of Wheat-Soybean Intercropping System

2018 ◽  
Vol 9 ◽  
pp. 1498-1510
Author(s):  
Fernando Ross ◽  
Pablo Eduardo Abbate
Keyword(s):  
Total Yield ◽  
Stress Factors ◽  
Growth And Yield ◽  
Row Spacing ◽  
Planting Pattern ◽  
Crop Growth Rate ◽  
Stress Effects ◽  
Sole Crop ◽  
Relay Intercropping ◽  
Narrow Row

It has been demonstrated that soybean (Glycine max) produces lower yields at relay intercropping with wheat (Triticum aestivum) than if it is sown as a sole crop. However, most studies considered wider or irregular soybean row spacing, compromising its capacity to recover after wheat harvest. This work studied the stress effects in relay soybean intercropping and suggests narrowing row spacing to improve soybean performance. The aims were (i) to compare growth and yield of two planting patterns and (ii) to separate the effect of water stress (WS) from the effects of other stress factors (OSF) induced by wheat on intercropping soybean. WS was evaluated comparing above-ground dry and grain yield of irrigated and non irrigated intercropping soybean, and OSF was evaluated comparing intercropping soybean with another treatment in which wheat straw (aerial biomass) was eliminated at soybean emergence, both irrigated treatments. In wheat, similar yields were obtained in treatments with an intercropping planting pattern with two rows for wheat and one for soybean (2:1) compared to three rows for wheat and one row for soybean (3:1). However, intercropping soybean at narrow row spacing (52 cm; 2:1) improve yielded 23% more than intercropping at 70 cm (3:1). During wheat-soybean coexistence, OSF prevailed on soybean and this effect persisted in later stages. After wheat harvest, OSF reduced the amount of light interception from R1 to R5 and depressed the crop growth rate (CGR) in 34%. However, in this period, WS also affected the radiation use efficiencies (RUE) which explained the greater fraction (66%) of the total stress induced by wheat in soybean CGR. Intercrop soybean yielded 182 g m-2 less compared to the unstressed sole crop control. Considering the wheat effects on soybean growth, 63% (116.5 g m-2) of the total yield lost were due to WS. Therefore, most of the performance of relay intercropping soybean was linked with water disponibility since early stages. However, at optimum water condition wheat competition by light and resources also affected soybean yield (OSF: 37%).

scholarly journals The Effect of Humic Acid, Vermicompost and Nano-Phosphorous on Growth and Yield Characteristics of Maize (Zea mays L.)

2021 ◽  
Vol 923 (1) ◽  
pp. 012080
Author(s):  
Luma Salih Jabbar Al-Taweel ◽  
Ahmed Malik Waheed Al-Saadawi
Keyword(s):  
Humic Acid ◽  
Root System ◽  
Plant Height ◽  
Total Yield ◽  
Dry Weight ◽  
Growth And Yield ◽  
Control Treatment ◽  
Highest Weight ◽  
Phosphorous Fertilizer ◽  
Fertilizer Combination

Abstract In order to study the effect of adding humic acid, vermicompost and nano-phosphorous on the growth characteristics and yield of maize. An experiment was carried out in one of the fields located in Afak sub-district - Diwaniyah Governorate - Iraq in the autumn season 2020. The experiment was carried out according to a Complete Randomized Blocks Design with three replications. The treatments included adding humic acid at three levels (0, 10 and 20) kg H−1 and coded (H0, H1 and H2) sequentially, while vermicompost was added at two levels (0 and 4) tons H−1 and coded (V0 and V1) sequentially. While nano-phosphorous was added at three levels (0, 5 and 10) kg H−1 that coded by (nP0, nP1 and nP2) sequentially. The results of the experiment showed outperform the fertilizer combination (VnP1), which consisted of vermicompost (4) H− 1ton and nano-phosphorous (5) kgH−1, as it recorded the highest content of chlorophyll in leaves, the highest plant height, the highest weight of the vegetative and root system, the percentage of protein and the total grain yield (66.53). SPAD and 269.93 cm, 53.53 g and 11.853 g) compared to the control treatment that recorded the lowest values, followed by treatment (V) with a single effect of vermicompost (4) tonH−1, which outperformed in the content of leaves from chlorophyll, plant height, dry weight of the vegetative and root system and the percentage of the protein and total yield which recorded (SPAD 65.77, 263.50 cm, 53.04 g, 11.520 g, 12.25% and 12,393 mcg H−1) compared to the control treatment that recorded the lowest values, as the second level of single nano-phosphorous fertilizer (nP2) was significantly superior compared to the levels addition of nP and comparison treatment.

The Effect of Boron, Humic Acid and Interference on Water Productivity and Yield of Cauliflower (Brassica Oleracea)

2019 ◽  
Vol 9 (2) ◽  
pp. 139-197
Author(s):  
Alwand Tahir R. Dizayee
Keyword(s):  
Humic Acid ◽  
Irrigation System ◽  
Plant Root ◽  
Water Productivity ◽  
Total Yield ◽  
Winter Season ◽  
Leaf Length ◽  
Surface Flow ◽  
Growth And Yield ◽  
Line Pipe

An experiment has been carried out at field in Gardmalla/Qushtapa with reading GPS (longitude 440035E, Latitude 360023N) ,414 meter above sea level, 15.5 Km far Southern of Erbil city during the Winter season of 2017 to test the effect of application humic acid in soil and spraying boron on the growth and productivity of water on cauliflower. Factorial experiment 3 (humic acid) (0, 10 and 20 kg ha-1 using) × 4 (boron foliar) ( 0, 0.5, 1.0, and 2.0 kg B ha-1 ) using solid snow cultivars in RCBD with three replicates.Planting solid snow cultivars was done on 11/7/2017 (seeding date), 10 /8 /2017 (transfer to field) and 22/12/ 2017 picking or harvesting date. Irrigation water was applied at 35% depletion to the depth of total plant root and calculate the depth of water applied up to field capacity. Irrigation system is surface flow irrigation through line pipe provided with meter gages for measuring water applied.The results show that the application of boron and humic acid increase significantly all growth and yield parameters of cauliflower improved the highest values of leaf length (cm), leaf width (cm) and chlorophyll content (mg/cm2), recorded 47.67 cm, 28.45 cm and 40.66 mg/cm2; 75.39 cm, 37.55 cm and 43.11 mg/cm2 and 80.0 cm, 40.29 cm and 47.33 mg/cm2 in treatment 2 kg ha-1 of boron foliar and 0, 10 and 20 kg ha-1 of humic acid addition, respectively. The values of curd weight (kg), curd diameter (cm) and total yield (Mg/ha) values were 0.97 kg, 19.45 cm and 25.38 Mg/ha; 1.33 kg, 22.33 cm and 32.66 Mg/ha and 1.40 kg, 23.78 cm and 36.53 Mg/ha in treatment 2 kg ha-1 of boron foliar and 0, 10 and 20 kg ha-1 of humic acid application, respectively. Values of water productivity (Kg/m3) ranged between 6.25 to 12.18 Kg fresh (green) curd m-3 water applied.

scholarly journals Impact of water stress under ambient and elevated carbon dioxide across three temperature regimes on soybean canopy gas exchange and productivity

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shardendu K. Singh ◽  
Vangimalla R. Reddy ◽  
Mura Jyostna Devi ◽  
Dennis J. Timlin
Keyword(s):  
Water Stress ◽  
Seed Yield ◽  
Plant Traits ◽  
Negative Impact ◽  
Dry Weight ◽  
Dry Mass ◽  
Stress Factors ◽  
Interactive Effects ◽  
Growth And Yield ◽  
Temperature Regimes

AbstractThe present study investigated the interactive effects of three environmental stress factors elevated CO2, temperature, and drought stress on soybean growth and yield. Experiments were conducted in the sunlit, controlled environment Soil–Plant–Atmosphere–Research chambers under two-level of irrigation (WW-well water and WS-water stress-35%WW) and CO2 (aCO2-ambient 400 µmol mol−1 and eCO2-elevated 800 µmol mol−1) and each at the three day/night temperature regimes of 24/18 °C (MLT-moderately low), 28/22 °C (OT-optimum), and 32/26 °C (MHT-moderately high). Results showed the greatest negative impact of WS on plant traits such as canopy photosynthesis (PCnet), total dry weight (TDwt), and seed yield. The decreases in these traits under WS ranged between 40 and 70% averaged across temperature regimes with a greater detrimental impact in plants grown under aCO2 than eCO2. The MHT had an increased PCnet, TDwt, and seed yield primarily under eCO2, with a greater increase under WW than WS conditions. The eCO2 stimulated PCnet, TDwt, and seed yield more under WS than WW. For instance, on average across T regimes, eCO2 stimulated around 25% and 90% dry mass under WW and WS, respectively, relative to aCO2. Overall, eCO2 appears to benefit soybean productivity, at least partially, under WS and the moderately warmer temperature of this study.

scholarly journals Influence of Tytanit® and EM on biochemical, physiological, and qualitative parameters of common bean

2021 ◽  
Author(s):  
Alicja Auriga ◽  
Jacek Wróbel
Keyword(s):  
Common Bean ◽  
Absorption Spectrometry ◽  
Nutrient Content ◽  
Dry Mass ◽  
Stress Factors ◽  
Effective Microorganisms ◽  
Substantial Impact ◽  
High Yields ◽  
Positive Effect

The role of preparations supporting plant growth is mainly to reduce the harmful effects of various stress factors on plants and to ensure high yields of good quality. This experiment compared the effect of the mineral stimulator Tytanit® and the biological preparation Effective Microorganisms (EM) on the physiological and biochemical activity, as well as the yield of the common bean (Phaseolus vulgaris L.). The photosynthetic pigments, free proline and malondialdehyde were assayed and compared at three phenological phases of the bean: 15 BBCH, 24 BBCH, 65 BBCH. The yield parameters included the average number of pods per plant, as well as their fresh and dry mass. Additionally, the nutrient content in the pods was determined according to the atomic absorption spectrometry method. The study revealed a positive effect of both preparations on increasing the content of chlorophyll a, b, and the carotenoids in the bean leaves. Plants treated with Tytanit® were characterised by the highest content of malondialdehyde and proline, while EM maintained the aldehyde content on a similar level compared to the untreated plants and significantly reduced the proline content. Both preparations significantly decreased the Mn, Mg, P, and Ca content in the pods and did not have a substantial impact on the yield.

scholarly journals Influence of the use of slow-release phosphate fertilizers on the growth and production of chili peppers

2021 ◽  
Vol 17 (2) ◽  
pp. 39-50
Author(s):  
Leandro Alves Macedo ◽  
Brendo de Oliveira Ferreira ◽  
André Cabral França ◽  
Levy Tadin Sardinha ◽  
Ana Flávia Leão ◽  
...  
Keyword(s):  
Slow Release ◽  
Total Yield ◽  
Dry Mass ◽  
Growth And Yield ◽  
Yield Potential ◽  
High Yield ◽  
Hot Pepper ◽  
Dry Matter Accumulation ◽  
Perennial Crop ◽  
Mineral Fertilization

In general, fertilization recommendations for pepper are old and scarce. Because pepper is a semi-perennial crop with high yield potential and dependence on phosphorus (P), an extremely important element, as it participates in several metabolic processes, it is necessary to look for efficient alternatives for phosphatefertilization, due to its low availability and high adsorption capacity in most Brazilian soils. Slow-release fertilizers have been shown to be an excellent alternative to conventional mineral fertilization. Therefore, the objective of this study was to evaluate the effect of different sources of P on growth and yield of hot pepper (Capsicum frutescens L.). An experiment was carried out in a greenhouse in the JK campus of UFVJM, Diamantina -MG, Brazil, arranged in a completely randomized design with eleven treataments(absence of fertilization, mineral treatment, organic treatment and four slow-release phosphate sources: pelleted organomineral, granulated organomineral, MAP coated and triple formulated, at doses of 150 and 300 kg ha-1 of P2O5). Growth variables, fresh and dry matter accumulation and yield were evaluated 180 days after planting. The pelleted and granulated organomineral treatments at the dose of 300 kg ha-1 of P2O5,promoted the best results for the parameters dry mass of root, number of fruits per plant, fresh and dry mass of fruits and total yield. Such results can be explained by the better efficiency of P release and the better absorptionof this nutrient by the plant, making it an excellent option in relation to conventional sources commonly adopted.

scholarly journals Enhanced plant nutrient use efficiency with PGPR and AMF in an integrated nutrient management system

2008 ◽  
Vol 54 (10) ◽  
pp. 876-886 ◽  
Author(s):  
A.O. Adesemoye ◽  
H.A. Torbert ◽  
J.W. Kloepper
Keyword(s):  
Plant Growth ◽  
Management System ◽  
Nutrient Management ◽  
Nutrient Use Efficiency ◽  
Poultry Litter ◽  
Nutrient Content ◽  
Growth And Yield ◽  
Control Group ◽  
Integrated Nutrient Management ◽  
Microbial Inoculants

A 3 year field study was conducted with field corn from 2005 to 2007 to test the hypothesis that microbial inoculants that increase plant growth and yield can enhance nutrient uptake, and thereby remove more nutrients, especially N, P, and K from the field as part of an integrated nutrient management system. The field trial evaluated microbial inoculants, which include a commercially available plant growth-promoting rhizobacteria (PGPR), arbuscular mycorrhiza fungi (AMF), and their combination across 2 tillage systems (no-till and conventional till) and 2 fertilization regimes (poultry litter and ammonium nitrate). Data were collected on plant height, yield (dry mass of ears and silage), and nutrient content of corn grain and silage. In addition, nutrient content of soil was determined, and bioavailability of soil nutrient was measured with plant root simulator probes. Results showed that inoculants promoted plant growth and yield. For example, grain yields (kg·ha–1) in 2007 for inoculants were 7717 for AMF, 7260 for PGPR+AMF, 7313 for PGPR, 5725 for the control group, and for fertilizer were 7470 for poultry litter and 6537 for NH4NO3. Nitrogen content per gram of grain tissues was significantly enhanced in 2006 by inoculant, fertilizer, and their interactions. Significantly higher amounts of N, P, and K were removed from the plots with inoculants, based on total nutrient content of grain per plot. These results supported the overall hypothesis and indicate that application of inoculants can lead to reduction in the build up of N, P, and K in agricultural soils. Further studies should be conducted to combine microbial inoculants with reduced rates of fertilizer.

scholarly journals Salicylic acid ameliorates the adverse effect of salt stress on strawberry

2009 ◽  
Vol 66 (2) ◽  
pp. 180-187 ◽  
Author(s):  
Huseyin Karlidag ◽  
Ertan Yildirim ◽  
Metin Turan
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Chlorophyll Content ◽  
Electrolyte Leakage ◽  
Dry Weight ◽  
Nutrient Content ◽  
Growth And Yield ◽  
Fresh Weight ◽  
Shoot Dry Weight ◽  
Negative Effect

Strawberry is considered as a salinity sensitive species and is adversely affected in response to the salt stress in terms of growth and yield. Pot experiments were conducted to determine the effect of exogenous salicylic acid (SA) application on physiology, growth, chlorophyll and mineral content of strawberry grown under salt stress and greenhouse conditions. Strawberry plants were treated with SA at different concentrations (0.0, 0.25, 0.50 and 1.00 mM). Salinity treatments were established by adding 0 and 35 mM of NaCl to a base complete nutrient solution. Salt stress negatively affected the growth, chlorophyll content and mineral uptake of strawberry plants. However, plants treated with SA often had greater shoot fresh weight, shoot dry weight, root fresh weight and root dry weight as well as higher chlorophyll content under salt stress. The greatest values were obtained with 1.00 mM SA treatment in both saline and non-saline conditions. Leaf water relative content (LWRC) was reduced in response to salt stress while electrolyte leakage was raised. SA treatments induced increases in LWRC and decreases in electrolyte leakage compared to the control under salt stress. With respect to the nutrient content, SA treatments increased almost contents of all nutrients in leaves and roots of strawberry plants under salt stress. The greatest values were often obtained by the 1.00 mM SA treatment. These findings suggest that the SA treatments can ameliorate the negative effect of salinity on the growth of strawberries.

scholarly journals Role of Humic Acid and Chemical Fertilizer in NPK Concentration, Growth and Yield of Broccoli Under Salinity Conditions

2021 ◽  
Vol 910 (1) ◽  
pp. 012085
Author(s):  
Khaleel J. Al-Issawi ◽  
Kamal H. Al-Dulaimi ◽  
Bassam A.A.H Alkhateb
Keyword(s):  
Humic Acid ◽  
Plant Height ◽  
Potassium Concentration ◽  
Nitrogen Concentration ◽  
Total Yield ◽  
Chemical Fertilizer ◽  
Growth And Yield ◽  
Fertilizer Recommendation ◽  
Gm Plant

Abstract A field experiment was conducted during the winter agricultural season 2020. To study the effect of humic acid and fertilizer recommendation, humic acid was supplied with irrigation water at two levels i.e., 0 and 0.25 gm L-1. Nine levels of the fertilizer recommendation were applied according to the fertilizer recommendation of 92kg N.h-1, 200 kg P. h-1 and 150 kg K. h-1 taking the symbols of F1to F9. The results showed the superiority of the treatments of humic acid application( 0.25 gm l-1) in the traits of plant height, Weight of broccoli head, total yield, nitrogen, phosphorous and potassium concentrations, by giving 32.64 cm, 246.5 gm plant-1, 8.215 tons ha-1, 5.541%, 0.3816%, and 3. 641% respectively, the treatment of adding chemical fertilizer at a level of 125% N + 125% P + % K 125 of the fertilizer recommendation(F2) gave the highest plant height of 36.60 cm, Weight of broccoli head of 269.2 g plant-1, total yield of 8.972 tons H-1, nitrogen concentration 5.817% and concentration Phosphorous 0.3141% compared to treatment F9, while treatment F5 gave the highest potassium concentration 3.893% compared to treatment F9 (1.914%).

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