نتایج جستجو برای: 15 and 30 t ha

تعداد نتایج: 17092568  

Journal: :International Journal of Plant and Soil Science 2023

The investigation was carried out during summer season to know the effect of different organic and inorganic fertilizers on physicochemical properties soil & content uptake plants. experiment laid in factorial randomized block design (FRBD) followed by twelve treatments with four replications. Water holding capacity, bulk density, porosity not significantly influenced application at harvest...

Journal: :Peritoneal dialysis international : journal of the International Society for Peritoneal Dialysis 2003
Thomas Sitter Matthias Sauter Bettina Haslinger

OBJECTIVE Hyaluronan (HA) is an important extracellular matrix component and is involved in fluid homeostasis, tissue repair, and response to infections. Previous studies have shown that supplementation of dialysis fluid with high molecular weight HA may have a positive impact on peritoneal solute and fluid transport characteristics. In the present study, we investigated the impact of HA on the...

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
رجب چوکان مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، کرج علی شیرخانی غلامرضا افشارمنش افشار استخر محمد حسین سبزی همایون دارخال حمید نجفی نژاد

maize hybrid ksc 706 (k3547/4 × mo17) produced grain yield 11.713 t ha-1, when evaluated in eight locations over two years (2007-8), comparing to ksc 704 with 9.845 t/ha. on farm experiments in 2012, in kermanshah province in two locations, this hybrid produced 13.100 and 13.300 t ha-1 in eslam abad and ravansar as first cropping, respectively, comparing to ksc 704, with 11.300 and 9.700 t ha-1...

Journal: :Agriculture 2022

Biochar can increase the microbial activity of a soil and seed yield oilseed rape. We performed field experiment to determine effect different doses biochar impact nutrient additions on in soils with low pH (4.69). Different were applied plots 2016 (0 t/ha (control), 15 (B15), 30 (B30), or 45 (B45)), fertilization was during 2019 (90 kg P/ha) 2020 (50 N/ha, 80 P/ha, 50 K/ha). Maize grown 2016, ...

Journal: :iran agricultural research 2008
h. kheyrodin h. antoun

the objective of this work was to study the effects of tillage and liquid manure applications on some physical and chemical properties as well as on the carbon and nitrogen mineralization potential of a meadow soil. our results indicated that tillage and manure applications had no effect on the concentration of cu, mn, total n and organic c in 0-15 cm layer of soil after 15 years of treatment. ...

Journal: :پژوهش های تولید گیاهی 0
سید حمزه حسینی حسینی دانشجوی دکترا سعید یوسف زاده استادیار- پیام نور سرجی یریتسایان دانشگاه ملی ارمنستان خدایار همتی دانشگاه گرگان

background and objectives: production and use of fertilizers in common agriculture have been many environmental problems. while the application of organic fertilizers instead of chemical fertilizers have a important role in soil fertility, increase quality of production and safety of agricultural ecosystems. pumkin, is an important annual herbaceous plant belongs to the cucurbitaceae family due...

Journal: :Agronomy 2023

The agricultural valorization of organic waste, including digestate from anaerobic digestion, can be a good tool to remedy the problem soil depletion by intensive crops. This study was conducted evaluate effect application on chemical characteristics soil, N, P, and K content, pH, electrical conductivity, as well agronomic performance forage corn (Zea mays L.). Digestate applied incorporated in...

Journal: :Land 2023

Several agroforestry systems prevail in different agro-ecological zones of Pakistan, and cover a remarkable area 19.3 million hectares. They not only play an important role slowing down CO2 emissions, but also contribute to mitigating climate change. However, many regions, the relevant effect on overall carbon (C) stock their reliance various factors are quite unidentified. This study was plann...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1390

در این پژوهش ابتدا پودر هیدروکسی آپاتیت با روش شیمیایی با ابعادnm5±30 سنتز شد. سپس پوشش تک جزئی چیتوسان با استفاده از الکل های مختلف با غلظت g/l5/0 چیتوسان ایجاد شد. برای ساخت محلول های تک جزئی چیتوسان، چیتوسان به همراه اسید استیک در مخلوط الکل و آب با مقادیر مختلف آب(75،50،20،15،10،5و100%)حل شد. پوشش های بدست آمده از لحاظ وزن،میکروساختار، چسبندگی و مقاومت به خوردگی بررسی شده و مقدار آب بهینه د...

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