To evaluate the herbage yield and silage quality of sorghum as affected by nitrogen irrigation levels, a 2-yr experiment (2017–2018) was conducted in semi-arid region Iran. Three levels (supply 100, 75, 50% soil moisture deficit I100, I75, I50) three (150, 300, 450 kg urea ha−1 N150, N300, N450) were evaluated. Increasing increased green (GHY), water use efficiency (IWUE), lactic acid (LA), propionic (PA), digestible organic matter (DOM), crude protein (CP), metabolizable energy (ME) but...

To identify the optimum intercropping system of sorghum and clover in terms quantity quality forage yield, a two-year experiment was conducted semi-arid region Iran, during 2016 2017 growing seasons. Treatments consisted eight cropping systems: S75C25 (75% + 25% clover), S50C50 S25C75, as replacement series; S100C50, S50C100, S100C100 additive sole cultures clover. The highest lowest dry matter (DM) yield (29.17 10.71 Mg·ha-1) were found monoculture systems, respectively. Although content...

Addressing water scarcity and the need for high-quality forage in arid regions necessitates development of efficient irrigation techniques. This study assesses impact various methods on performance water-use efficiency (IWUE) sorghum cultivars under water-deficit conditions a semi-arid region Iran during 2019 2020 cropping seasons. Three methods-variable alternate furrow (AFI), fixed (FFI), conventional (CFI)-were evaluated alongside three levels drought stress (severe stress: I50, moderate...

The production of sufficient animal feed in arid and semi-arid regions plays a significant role food security these areas. present study was conducted based on the hypothesis that intercropping sorghum amaranth, comprising relatively drought tolerant forages, will enhance yield quality under limited irrigation water availability.Implementation fixed alternate furrow (FFI) (AFI) resulted saving 22.5% 19.7% water, respectively. However, declined both forage. In conventional (CFI), highest dry...

The experiment was conducted in spring 2014 to evaluate the effect of defoliation on quantitative and qualitative characteristics sugar beet Motahari research station located Kamal Shahr region Karaj, Iran.The study split plot factorial with completely randomized block design four replications.The main factors included two planting dates viz 23 April, (suitable time) 18 May, (Late planting) sub-factors five levels including stage early cotyledon growth true leaves (2 leaves), plant...

Research on the impact of inputs has a long history in country; however, because dispersion and diversity results various experiments, it is difficult to achieve general conclusion. In this study, meta-analysis approach been used overcome problem order single result by integrating re-analyzing findings independent experiments. For purpose, scientific articles published researchers country regarding effect salinity stress cotton yield were investigated. Articles selected so that, their data...

Application of growth regulators like paclobutrazol and gibberellic acid is a suitable way to prevent excessive nitrogen consumption. Therefore, this 2-year research was conducted in Karaj, Iran. This laid out randomized complete block design with three replications split-plot arrangement 2019–2021. Treatments included at levels: (60, 105 150 kg ha−1) which were placed the main plots. The second factor foliar application [gibberellic (100 ppm), (200 ppm) control]. results showed that raised...

Different strategies are required to mitigate drought stress in plants. In order effect of nano micronutrient and cytokinin on wheat under different irrigation regimes, the experiment was performed Karaj city, Iran. The experimental factors included regimes at three levels [I1: normal irrigation, I2: from planting date pollination stage, 60% available moisture discharge afterward, I3: then holding cutoff irrigation], considered as main plots. Nano microelements five levels: [control, zinc,...

Abstract Appropriate planting date is one of the important factors in determining yield potential crops, and use methanol glycine betaine increased plant growth, especially delayed cultivation. For this purpose, a factorial research was carried out form completely randomized block design with three replications Mazandaran, Iran, on maize as second after rice harvest. Treatments included at levels [0 (control), 1, 2 ppm], 10, 20% v/v], dates: [August 6, 16, 27]. The results illustrated that...

Identification and determination of ecological requirements in medicinal plants is necessary for maintaining them their habitats. The aim this study was to assess the effect soil properties climatic factors various habitats on morphology, phenology, growth characteristics essential oil quantity quality Perovskia abrotanoides Karel Iran. Six most important P. were identified Khorasan province Multiple regression stepwise technique used determinate relationship between parameters (climate...

Agriculture in arid areas with inadequate water supply enquires the right cognition of evapotranspiration related to application.In this research a single-cross hybrid maize (S.C. 704), under split plot experiment based on randomized complete block design was selected for cultivation 2015 and 2016 years.The experimental treatments were set up three planting dates: 21 st April, 11 th May 31 May, four irrigation regimes: I 100 (100%), 80 (80%), 60 (60%) 40 (40%) estimated (ET).The results...

To evaluate the influence of different plant growth stimulants on yield and components corn (Zea mays L), a greenhouse experiment was conducted as factorial arrangement based completely randomized design. The studied treatments (T) were in 8 levels: (T0, control, T1, foliar application amino acid, T2, seaweed, T3, fertigation humic T4, fulvic T5, T6, inoculation growth-promoting bacteria, T7, acid+ seaweed+ acid). Also, fertilizers (F) applied 3 levels (F0, F1, 75 kg, F2, 100 kg). results...

Simulation models of crops are referred as an efficient complement for the experimental study.Also crop simulation can be useful making appropriate decisions on agricultural systems.So this study aimed to simulate growth maize under different sowing times and deficit irrigation conditions, using Decision Support System Agrotechnology Transfer (DSSAT) model in 2014 year.This was conducted research field Islamic Azad University Karaj 2013 year.The experiment designed a split-block with four...

In order to study biological control of soybean charcoal rot disease using multiple mutant Trichoderma formulations with gamma ray, an experiment under greenhouse conditions was performed in the years 2017 and 2018 at Karaj Nuclear Agriculture Research Institute. Beside consisted 16 treatments including chemical commercial fungicides inoculation non-mutant fungi. The results showed that effect significant for all morphological physiological characteristics soybean. use had a positive...

To study the response of seed germination and early growth common heliotrope (Heliotropium europaeum) in different environmental conditions, three separate experiments were conducted. Treatments effect waterlogging levels 0, 1, 2, 4 8 days; acidity at seven 4, 5, 6, 7, 8, 9 100 high temperature nine 60, 80, 100, 120, 140, 160, 180, 200 220°C; percentage rate germination, root shoot length fresh weight seedlings was studied two populations Karaj Ahvaz. The results showed that with increasing...

Abstract Considering the high waste after peach harvest, it is very important to provide suitable solutions increase shelf life of this fruit harvest. One ways fruits harvesting use nature-friendly substances such as vegetation and hormones. For purpose, an experiment was conducted investigate effect cover in a factorial form completely randomized design four replications on ( Prunus persica L.). Research treatments included salicylic acid at three levels: control (no consumption), 1 mM 2...