Journal of Crop Nutrition Science: 1 (1)

Open Access Article

1 - Influence Different Level of Humic Acid and Irrigation Regime on Seed Yield and Morphological Traits of Corn under Warm and Dry Climate Condition
Kazem Banitamim Alireza Shokuhfar

In order to evaluation effect of different level of humic acid affected drought stress on seed yield, its components and morphological traits of corn a research farm was conducted according split plot experiment based randomized complete blocks design at three replicati More

In order to evaluation effect of different level of humic acid affected drought stress on seed yield, its components and morphological traits of corn a research farm was conducted according split plot experiment based randomized complete blocks design at three replication during 2015 year. Main factor included four irrigation regimes (90mm, 110 mm, 130 mm and 150mm evaporation from pan class A) and four level of humic acid belonged to subfactor (non-application or control, 20, 30 and 40 L.ha-1). According result of analysis of variance effect of different irrigation regime and humic acid on all measured traits (instead number of row per ear) was significant but interaction effect of treatments was not significant. Mean comparison result indicated 90 mm evaporation treatment had highest amount of plant height (191 cm), leaf area index (4.1), ear diameter (8.1 cm), ear length (21.4 cm), number of row per ear (14), number of seed per row (40), seed weight (338 gr), seed yield (7120 kg.ha-1), biologic yield (1650 kg.ha-1) and harvest index (48.6 %), instead ear length loses. Also among different level of humic acid 40 L.ha-1 had similar trend and was superior in all measured traits. It should be noted that the amount of organic matter in the soil, type and texture of the soil can be effective on grades of stress, and for each climate and region, the level of water stress and the optimum amount of humic acid can be different. Finally according result of this research irrigation at 90 mm evaporation from pan class A led to achieve highest seed yield and with 40 L.ha-1 humic acid treatment can be advised for studied region. Manuscript profile

Open Access Article

2 - Effect of Organic and Chemical Fertilizers on Growth Parameters and Essential Oil of Iranian Basil (Ocimum basilicum L.)
Jalil Dehghan Samani Abdollah Ghasemi Pirbalouti Fatemeh Malekpoor

Basil belongs to the Lamiaceae family, is one of the most important aromatic and medicinal plants, which it widely cultivated in many countries. The areal parts, especially leaves of sweet basil are widely used to enhance the flavor of foods such as salads, pasta, tomat More

Basil belongs to the Lamiaceae family, is one of the most important aromatic and medicinal plants, which it widely cultivated in many countries. The areal parts, especially leaves of sweet basil are widely used to enhance the flavor of foods such as salads, pasta, tomato products, vegetables, pizza, meat, soups, marine foods, confectioneries and other products. This study was conducted to investigate the response of basil to different fertilizers (chemical and organic). Treatments consisted of different fertilizers including: F1=C (Control, without any fertilization), F2= CM (Cow manure 20 t.ha−1), F3=CM+CF (Cow manure 20 t.ha−1 + chemical fertilizers), F4= CM+CF (Cow manure 10 t.ha−1+ chemical fertilizers), F5=CF (Chemical fertilizers, N.P.K), F6= VC (Vermicompost). This experiment conducted on randomized complete block design with three replications in Saman city, Southwestern Iran. Morphological traits and essential oil yield of the aerial parts of sweet basil (O. basilicum) were studied. From the results, it can be concluded that the application of different fertilizers has an influence on morphological traits, essential oil yield of the aerial parts of sweet basil. The highest values for plant height and dry weight (kg.ha-1), were observed with application CM (cow manure 20 t.ha−1), CM+ CF (cow manure 20 t.ha−1 + chemical fertilizers), respectively. Among different fertilizer, the essential oil yield exhibited the greatest amount in CM+ CF treatment. In finally, the application of integrated manures mixture of organic (cow manure) and chemical fertilizer (20 t.ha-1) can cause to improvement dry matter yield and essential oil content in sweet basil. Manuscript profile

Open Access Article

3 - Feasibility Study on Reducing Lead and Cadmium Absorption in Sweet Basil (Ocimum basilicum L.) With Using Active Carbon
Solmaz Divani Farzad Paknejad Hossein Ghafourian Mojtaba Alavifazel Mohammad Reza Ardakani

In order to reducing the risk of heavy metals concentration in plant tissues which areamong the edible plants by human, find the active carbon ability in heavy metals removalfrom Lead (Pb) and Cadmium (Cd) contaminated soils and its effect on growthand nutrient absorpti More

In order to reducing the risk of heavy metals concentration in plant tissues which areamong the edible plants by human, find the active carbon ability in heavy metals removalfrom Lead (Pb) and Cadmium (Cd) contaminated soils and its effect on growthand nutrient absorption of Sweet basil, this greenhouse experiment was conducted inthe faculty of agriculture, Islamic Azad University, Karaj branch, Iran. The experimentwas conducted in factorial in the form of a completely randomized design with fourreplications and three treatments: different levels of active carbon (0. 5, 10, 15 and 20g.kg-1soil), Lead (0 and 4 g.kg-1 soil) and Cadmium (0 and 0.08 g.kg-1 soil). Resultsshowed that active carbon significantly affected the sweet basil trials. It was observedthat the Pb and Cd absorption was reduced in soil contaminated with heavy metalwhen active carbon was applied. The optimum results were obtained through the applicationof active carbon in 20 g.kg-1 soil treatment. Totally, our results showed that activecarbon could improve the basil growth in heavy metal contaminated soil by inhibitionof Pb and Cd translocation into the plant tissues. Moreover, it was found thatSweet basil has a high ability in heavy metals removals in polluted regions. Manuscript profile

Open Access Article

4 - Study of Different Fertilization Methods on Oil Palm (Elaeis guineensis) Vegetative Factors
Abdol Amir Rahnama Abdol Hamid Mohebi Mohammad Khayat

Oil palm propagation techniques are juvenile pot plants derived from germinated seeds and tissue culture, because it doesn’t produce sucker. In the nursery stage, monitoring the conditions of irrigation and nutrition are important to ensure phenotypic quality. Dur More

Oil palm propagation techniques are juvenile pot plants derived from germinated seeds and tissue culture, because it doesn’t produce sucker. In the nursery stage, monitoring the conditions of irrigation and nutrition are important to ensure phenotypic quality. During the nursery stage, optimal fertilization in development of more vigorous and productive plants. This research was carried out to increase fertilizer use efficiency and its impact on vegetative growth of juvenile oil palm plants in greenhouse based Factorial experiment according completely randomized design with three replications at greenhouse of date palm and tropical fruit research institute in Ahvaz during 2011-2013. Treatments included five different fertilization methods (Without fertilization or control, soil application, fertigation, foliar spray and soil application add foliar spray on juvenile pot plants derived from germinated oil palm seeds) and eight genotypes. The results showed that different methods of fertilization were significantly different in vegetative growth characteristics. Also, different cultivars were significantly different in all vegetative traits except chlorophyll content. Interactions between treatments were significant in the growth characteristics of stem and number of leaves (P≤0.05). Fertigation with mean seedling height, stem height, stem diameter, leaf length and width, equivalent to 138.9, 26.0, 7.3, 126.5 and 40.6 cm, respectively and the average number of leaves and leaflets of 11.9 and 44.6 numbers per plant respectively and chlorophyll content of 55.3 was superior fertilization method comparing to other methods. Manuscript profile

Open Access Article

5 - Maize (Zea mays L.) Response to Nitrogen Fertilizer under Drought Stress at Vegetative and Reproductive Stages
Adel Modhej Maryam Davoodi Behrang Behdarvandi

In the sub-tropics, water and nitrogen are the most important factors limiting the grain yield of maize. The effect of nitrogen (N) rates and drought stress at different growth stages of maize were investigated. Nitrogen treatments consisted of 100, 150, and 200 kgN.ha- More

In the sub-tropics, water and nitrogen are the most important factors limiting the grain yield of maize. The effect of nitrogen (N) rates and drought stress at different growth stages of maize were investigated. Nitrogen treatments consisted of 100, 150, and 200 kgN.ha-1 from the urea source while water stress treatments were composed of irrigation-off since the early 10-leaf stage to emergence of 50% tassel (vegetative), irrigation-off since the emergence of 50% tassel to the end of pollination (reproductive), and well watered plots. Drought condition at both vegetative and reproductive growth stages reduced grain yield 35% and 45%, respectively. Number of kernel per ear and kernel weight also reduced significantly with drought stress especially in reproductive stage. The highest response of maize yield to N fertilizer was observed in treatment with optimal irrigation; however, the increase of N particularly in vegetative stress somewhat led to decrease of drought stress effects on grain yield. Drought stress at vegetative and reproductive stages increased resource limitation with the rate of 67.1% and 77.25%, respectively. Drought stress at both stages caused significant decrease in chlorophyll content and leaf relative water content. In general, the highest negative effect of drought stress on grain yield and physiological traits occurred at reproductive stage and increasing the amount of nitrogen cannot compensate these reductions. Manuscript profile

Open Access Article

6 - Evaluation Effect of Vermicompost and Nano Iron on Agro-Physiological Traits of Corn (Zea mays L.)
Arash Roozbahani Elham Mohammadkhani

In order to investigate the effect of vermicompost and Nano Iron on yield and yield components of maize, a farm experiment was done in a factorial based on completely randomized blocks design with three repetitions in Damavand in 2013. The first factor was vermicompost More

In order to investigate the effect of vermicompost and Nano Iron on yield and yield components of maize, a farm experiment was done in a factorial based on completely randomized blocks design with three repetitions in Damavand in 2013. The first factor was vermicompost in two levels included no applying and applying (vermicompost 1kg.m-2) and the second factor was Nano iron fertilizer with four levels included no application (control), seed coated application, foliar application and both seed coated and foliar application. The result showed that all traits significantly affected by Vermicompost and Nano iron. Meaning comparisons showed that application of vermicompost caused to reach the best result for nearly all investigated traits than control. Applying Nano iron significantly increased stem height, dry weight, total chlorophyll, yield, biological yield and harvest index. Nano iron application in a form of seed coated and foliar application was better than the other levels. Finally it’s suggested that to reach the best results should be applied of vermicompost and Nano iron in a form of seed coated and foliar application. Manuscript profile

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