Journal of Crop Nutrition Science: 5 (4)

Open Access Article

1 - Assessment Effect of Different level of Nitrogen Fertilizer (Urea Source) and Interval between Irrigation Round on Crop Production of Sorghum (Sorghum bicolor L., cv. Speed feed)
Bahareh Jahangiri Mojtaba Alavifazel Mohamad Reza Dadnia

BACKGROUND: Nutrients play a very important role in chemical, biochemical, physiological, metabolic, geochemical, biogeochemical, and enzymatic processes. Innovations for saving water in irrigated agriculture and thereby improving water use efficiency are of paramount i More

BACKGROUND: Nutrients play a very important role in chemical, biochemical, physiological, metabolic, geochemical, biogeochemical, and enzymatic processes. Innovations for saving water in irrigated agriculture and thereby improving water use efficiency are of paramount importance in water-scarce regions. Conventional deficit irrigation is one approach that can reduce water use without causing significant yield reduction. OBJECTIVES: This study is aimed to examine the changes of crop production of sorghum in response to apply different interval irrigation round and urea fertilizer. METHODS: A farm research was arranged via split plot experiment based on the randomized complete block design with three replications in 2012. Main plots were included apply three levels of interval between irrigation (I1: 8 day; I2: 12 day; I3: 16 day) and the sub plots consisted three level of urea fertilizer (N1: 200, N2: 300, N3: 400 kg.ha-1). RESULT: According result of analysis of variance effect of different level of urea fertilizer, irrigation regime and interaction effect of treatments on all studied traits (instead harvest index) were significant. Evaluation mean comparison result of interaction effect of treatments on all measured traits revealed the highest amount of seed yield (817 gr.m-2), 1000-Seed weight (33.38 gr), Fresh forage yield (11829 gr.m-2) and total dry weight (3071 gr.m-2) were noted for 8 day interval between irrigation round and 400 kg.ha-1 urea fertilizer and lowest amount of mentioned traits belonged to 16 day interval between irrigation round and 200 kg.ha-1 urea fertilizer treatment. CONCLUSION: Finally according result of current research application 8 day interval between irrigation round and 400 kg.ha-1 urea fertilizer had the highest amount of studied traits and it can be advice to producers in studied region. Manuscript profile

Open Access Article

2 - Assess Effect of Biological Phosphorous Fertilizers and Micro Elements (Boron and Manganese) on Alfalfa Growth Curve Indices
Maryam Khirkhah Hamid Madani Ghorban Normohammadi Mani Mojadam

BACKGROUND: Fertilizer management is one of the most important factors in successful cultivation of crops affecting yield quality and quantity. Growth analysis is still the most simple and precise method to evaluate the contribution of different physiological processes More

BACKGROUND: Fertilizer management is one of the most important factors in successful cultivation of crops affecting yield quality and quantity. Growth analysis is still the most simple and precise method to evaluate the contribution of different physiological processes in plant development. OBJECTIVES: Current research was conducted to evaluate effect of different level of Phosphorous biofertilizer and micro elements (Boron and Manganese) on physiological parameters of Alfalfa. METHODS: This research was carried out in three farm (One-year, three-year and five-year hay fields) according combined analysis factorial split plot experiment based on randomized complete blocks design during two year (2012-2013) with three replications. This experiment was performed on alfalfa planted at different years (one year, three years and five years). The main factor included phosphorous biofertilizers (p 0: control, p 1: Adding the bacteria at the rate of 100 g per 400 liters of water and the sub factor consisted Manganese fertilizer (Mn0: control, Mn1: Foliar application of chelate at the rate of 1 L.ha-1, Mn2: soil application in source of manganese sulfate at the rate of 10 kg.ha-1) and Boron fertilizer (B0: control, B1: Foliar application at the rate of 1 L.ha-1, B2: soil application at the rate of 10 kg.ha-1). RESULT: Compare different level of treatments revealed the highest amount of physiological parameters belonged to TR14: p 1B1Mn1 and TR15: p 1B1Mn2 and the lowest one were for TR1: p 0B0Mn0 treatment in three farms (One-year, three-year and five-year hay fields). CONCLUSION: Finally according result of current research revealed applying studied elements significantly increases crop production and can be suggested as the best nutritional recommendation for alfalfa so consume phosphorus biofertilizer, Foliar application of boron with soil application and foliar application of manganese had highest amount of physiological parameters such as LAI, CGR, NAR and RGR. Manuscript profile

Open Access Article

3 - Phytochemical Responses of White Savory (Satureja mutica Fisch and C.A.Mey.) to Foliar Application of Seaweed Extract and Ecormon Fertilizer
Saeid Reza Poursakhi Hossein Ali Asadi-Gharneh

BACKGROUND: Sustainable agriculture is a great solution to reduce chemical pollutants to overcome environmental pollution. OBJECTIVES: Considering the importance of the savory and the consequences of fertilizers application, current study was carried out to determine t More

BACKGROUND: Sustainable agriculture is a great solution to reduce chemical pollutants to overcome environmental pollution. OBJECTIVES: Considering the importance of the savory and the consequences of fertilizers application, current study was carried out to determine the optimum concentration of seaweed extract and Ecormon fertilizer -as an organic matter and growth promoting stimulus- on some biochemical characteristics of white savory. METHODS: The present study was conducted as a factorial experiment in a randomized complete blocks design including three concentrations of seaweed extract (0, 1.5, and 3/1000) and three concentrations of Ecormon fertilizer (0, 0.5 and 1/1000) in three replications to study the biochemical properties of white savory. RESULT: According to the results, the highest chlorophyll a, b, total chlorophyll and carotenoid levels were observed in the treatment of Ecormon1 (2.65, 2.31, 4.95 and 2.88 mg.g-1 respectively), whereas Seaweed 1.5 had the lowest pigments amounts. The highest amount of phenolic compounds (804.00 mg.g-1) was obtained from seaweed 3 plus Ecormon 1, while the lowest amounts were belonging to seaweed 1.5 plus Ecormon1 and seaweed 3 plus Ecormon 0.5 (247.40 and 248.30 mg.g-1), respectively. The highest amounts of antioxidant activity were observed in treatments of seaweed 3 plus Ecormon1 and Ecormon 0.5 (46.25 and 45.26 %, respectively) and the lowest value (25.87 %) was observed in control treatment. CONCLUSION: In general, application of Ecormon and seaweed extract showed a positive effect on photosynthetic pigments, phenolic compounds and antioxidant activity of white savory. So, it can be recommended to farmers as efficient bio-elicitors that improve the biochemical properties of the plant through induction of the immune system. Manuscript profile

Open Access Article

4 - Assess Effect of Nitrogen Fertilizer and Phosphorous Biofertilizers (Azospirillum and Pseudomonas) on Barley Crop Production and Seed Protein Content
Tahereh Hasanabadi Hamideh Khalaj Mohammad Reza Ardakani Maryam Delfani

BACKGROUND: Azospirillum is effective in biostabilization of nitrogen and Pseudomonas is effective in dissolving soil phosphorus. OBJECTIVES: Current study was conducted to assess effect of different level of nitrogen and biofertilizer on seed yield, its components and More

BACKGROUND: Azospirillum is effective in biostabilization of nitrogen and Pseudomonas is effective in dissolving soil phosphorus. OBJECTIVES: Current study was conducted to assess effect of different level of nitrogen and biofertilizer on seed yield, its components and protein content. METHODS: This research was carried out via spilt plot factorial experiment based on randomized complete blocks design with three replications along 2014-2015 year. The main factor included nitrogen (N0%=0 or control, N50%=75, N75%=112.5, N100%=150 kg.ha-1). The sub factor at first consisted Azospirillum (Azo0: non use of Azospirillum or control, Azo1: use of Azospirillum) and then Pseudomonas (Pse0: non use of Pseudomonas or control, Pse1: use of Pseudomonas). RESULT: The results showed that the application of nitrogen fertilizer had a significant effect on seed protein content, seed protein yield, plant height and seed yield at 1% probability level, also inoculation of Azospirillum increased the effect of nitrogen fertilizer on these traits. Mean comparison result of different level of Pseudomonas indicated that maximum seed yield (4800 kg.ha-1) was noted for Pse1 and minimum of that belonged to control treatment. So Pseudomonas inoculation increased seed yield by 8% compared to the control treatment (no bacterial inoculation). As for Duncan classification made with respect to interaction effect N × Azo the maximum and minimum amount of seed yield belonged to N100% and Azo1 (5710.9 kg.ha-1) and control (3981.3 kg.ha-1). Inoculation of the plant with Azospirillum increased the seed protein content by 14.8%. Also inoculation of Pseudomonas caused the highest amount of seed protein content of 13.56 (g.100 g-1). CONCLUSION: Inoculation of Pseudomonas fluorescence also had a significant effect on all the mentioned traits. Inoculation of Azospirillum and 75 kg N ha-1 significantly increased seed yield and the use of Azospirillum led to save 25% of the nitrogen fertilizer and can be advised to producers. Manuscript profile

Open Access Article

5 - Evaluation Effect of Different Level of Vermicompost and Manure on Physiological Parameters of Cowpea (Vigna unguiculata L.)
Ahmad Zalaghi Seyed Kivan Marashi Mani Mojadam

BACKGROUND: Vermicompost has many characteristics such as high porosity, ventilation and proper drainage, high moisture absorption and maintenance power, high uptake level for water and food stuffs, and its use in sustainable agriculture is very useful to improve soil p More

BACKGROUND: Vermicompost has many characteristics such as high porosity, ventilation and proper drainage, high moisture absorption and maintenance power, high uptake level for water and food stuffs, and its use in sustainable agriculture is very useful to improve soil porosity and thus more availability of nutrient elements required by plants. Manure plays an important role in improving physical, chemical and biological properties of the soil. OBJECTIVES: The current study was conducted to assessment effect of different level of vermicompost and several amount of cow manure on growth indices of Cowpea. METHODS: This research was carried out via factorial experiment based on randomized complete blocks design with three replications along 2015 year. Place of research was located in Ahvaz city at longitude 48°40'E and latitude 31°20'N in Khuzestan province (Southwest of Iran). The first factor included three level of Vermicompost (V1: nonuse of vermicompost or Control, V2: 2 t.ha-1, V3: 4 t.ha-1) and second factor consisted of cow manure (M1: nonuse of cow manure or Control, M2: 10 t.ha-1, M3: 15 t.ha-1). RESULT: Result of analysis of variance revealed effect of vermicompost and cow manure on all studied growth parameters (instead total dry weight) was not significant. Compare different level of vermicompost indicated that maximum leaf area index (LAI), total dry weight (TDM), crop growth rate (CGR) and net assimilation rate (NAR) was noted for 4 t.ha-1 and minimum of that belonged to control treatment. Compare different level of cow manure showed the maximum total dry weight belonged to LAI, TDW, CGR and NAR for 15 t.ha-1 and minimum of that was for control treatment. CONCLUSION: Based on the results of current research, treatments of 4 t.ha-1 of vermicompost mixed with 15 t.ha-1 of animal manure had the highest amount of physiological indicators and can recommended for studied area. Manuscript profile

Open Access Article

6 - Integrated Effect of Nitrogen Fertilizer and Vermicompost on Quantitative and Qualitative Traits of Sorghum (Sorghum bicolor L.) Under Water Stress Situation
Seyedeh Zohreh Hashemi saeid Zakernejad Khoshnaz Payandeh

BACKGROUND: Management of water deficit is a great factor to sustainable crop production, especially in arid and semi-arid regions. Vermicompost is an organic compound that is microbial active and rich in nutrients that results from the interaction of earthworms and mic More

BACKGROUND: Management of water deficit is a great factor to sustainable crop production, especially in arid and semi-arid regions. Vermicompost is an organic compound that is microbial active and rich in nutrients that results from the interaction of earthworms and microorganisms with organic matter decomposition. OBJECTIVES: This research was carried out to assess effect of different level of water deficit stress and combined effect of nitrogen fertilizer and vermicompost on Sorghum crop production and seed protein content. METHODS: Current study was conducted according split plot experiment based on randomized complete blocks design with four replications along 2017 year. The main factor included water deficit stress at three level (A1: 70, A2: 100 and A3: 130 mm Class A evaporation pan) and combined effect of nitrogen fertilizer and vermicompost at five level (B1: 100% Nitrogen; 100% pure nitrogen equivalent to 200 kg per hectare, B2: 75% Nitrogen+25% Vermicompost, B3: 50% Nitrogen+50% Vermicompost, B4: 25% Nitrogen+75% Vermicompost, B5: 100% Vermicompost) belonged to sub plot. RESULT: According result of analysis of variance effect of water deficit stress and combination nitrogen with vermicompost on all measured traits was significant but interaction effect of treatments only on seed and biologic yield was significant. Mean comparison result of different level of water deficit stress indicated that maximum plant height, race length, number of raceme per race, number of seed per race, 1000-seed weight and protein yield was noted for 70 mm evaporation pan class A and minimum of those belonged to 130 mm evaporation pan class A. Also as for Duncan classification made with respect to different level of combination nitrogen with vermicompost maximum and minimum amount of mentioned traits belonged to 75% nitrogen+25% vermicompost and 100% vermicompost treatment. CONCLUSION: Finally in order to achieve maximum quantitative and qualitative yield, cultivation of sorghum with apply 75% nitrogen+25% vermicompost treatment under 70 mm evaporation pan class A it can be advised at studied areas. Manuscript profile

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