نتایج جستجو برای: including control or without any humic application h1
تعداد نتایج: 5888547 فیلتر نتایج به سال:
Combined application of organic and inorganic amendments was known to play a significant role in improvement of soil properties. A field experiment was conducted to explore the effects of gypsum, farmyard manure and commercial humic acid application on the amelioration of salt affected (saline sodic) soil. During this study, soil pH, electrical conductivity, sodium adsorption ratio, responses o...
in the last two decades, there has been an increasing interest in structural engineering control methods. shape memory alloys and seismic isolation systems are examples of passive control systems that use of any one alone, effectively improve the seismic performance of the structure. characteristics such as large strain range without any residual deformation, high damping capacity, excellent re...
In recent years, special attention has been paid to the consumption of plant growth stimulants such as amino acids and humic acids along with micronutrients to adjust the effects of abnormal environmental conditions such as untimely cold or salinity and drought stress in grain production programs. In order to investigate the effect of growth enhancers on compensating for the lack of transport a...
this study sought to examine the effect of cooperative game on iranian students achievements in english alphabet learning. cooperative games are games, in which players or teams work together towards a common goal without defeating someone. the methodology used in this study was experimental. the population of the study was 60 female students from the grade one in secondary school in tabriz, ir...
the use of such biostimulants as humic materials has recently become common in turf management operations. these products have been used to help the establishment of turfgrass and to enhance the turf stress tolerance capacity. this experiment was aimed at studying the effect of humic acid on some growth factors in turf grass. it was carried out in a factorial randomized complete block design (r...
one of the most important issues affecting environmental health and sustainable food production is application of organic fertilizers instead of chemical fertilizers. this study set out to investigate the effect of application of soil humic acid and fulvic acid on barley plant. to this end a factorial experiment was carried out on the basis of randomized complete block design with four replicat...
extra use of chemical fertilizers in recent decades had resulted in pollution of water, soil and other environmental recourses. to investigate the effects of humic acid as an organic fertilizer on some yield components of three tomato (lycopersicon esculentum l.) varieties, an experiment was conducted during 2010 growing season at khorasan-e-razavi, ahmadabad suburb of mashhad. experiment was a...
Application[Editor 321] of biotic growth regulators (e.g. humic components) and appropriate mulches is recommended to improve turfgrass quality especially in arid andsemi-arid climate zones. However, limited number of studies have investigated their effect on lawn establishment. To investigate the effect of humic acid (HA) and selected mulches on characteristics of Festuca arundinacea in its p...
Many studies tested different feed additives, among these additives, humic substances (HS) have been used in livestock and poultry diets. Humic substances commonly present in nature as they are created from the organic matter decomposition, and are normally found in the soil and natural water. Active components of HS consist of humic acid (HA), humus, ulmic acid, fulvic acid, humin and certain ...
Humic acid (HA) with pseudo-hormonal activity has an important effect on nutrients uptake, yield and quality of crop products. Therefore, this experiment was conducted in soilless condition to evaluate the best HA concentration (0, 250, 500, 750 and 1000 MG/l) of nutrition solution and its effects on morphological traits, nutrients uptake, and postharvest vase life of pot marigold. Based on the...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید