نتایج جستجو برای: efficient use of chemical fertilizers
تعداد نتایج: 21279075 فیلتر نتایج به سال:
In order to investigate the effect of vermicompost and humic acid on the quantitative and qualitative characteristics of safflower (Carthamus tinctorius L.), an experiment was conducted in a completely randomized design with seven treatments (control, 100 g vermicompost, 200 g vermicompost, 0.5 g.lit humic acid, 1 g.lit humic acid, 0.5 g.lit humic acid + 100 g vermicompost, 1 g.lit humic acid ...
this experiment was conducted in 2012 at the research field of alborz research station, research institute of forests and rangelands, karaj, iran, to study the effect of chemical and biological fertilizers on sage (salvia officinalis l.) and replacing biofertilizers instead of high doses of chemical fertilizers. the experiment was conducted in factorial in the form of a randomized complete bloc...
one of the important aspects of the medicinal plants production is using less chemical inputs. it could be effective for increasing of production and environmental purposes. in order to investigate the effects of application time of integrated chemical fertilizer with cattle manure on growth, yield and yield components of black cumin (nigella sativa l.), an experiment was conducted based on a r...
the present study aimed at investigating the relationship between iranian efl teachers’ classroom management orientations and their teaching styles. additionally, the difference between male and female teachers’ teaching styles and classroom management orientations and their relationship with experience and age were explored. three hundred efl teachers filled in attitudes and beliefs on classro...
abstract since heubners (1985) pioneering study, there have been many studies on (mis) use/ non-use of articles by l2 learners from article-less and article languages. the present study investigated how persian l2 learners of english produce and interpret english definite descriptions and demonstrative descriptions. it was assumed that definite and demonstrative descriptions share the same cen...
in this thesis a calibration transfer method is used to achieve bilinearity for augmented first order kinetic data. first, the proposed method is investigated using simulated data and next the concept is applied to experimental data. the experimental data consists of spectroscopic monitoring of the first order degradation reaction of carbaryl. this component is used for control of pests in frui...
Background & Aim: Thymus daenensis is recognized as aromatic herbs, which used in food, flavoring, pharmaceutical, and perfumery industries. This study was conducted to investigate the response of T.daenensis to different fertilizers (chemical and organic) along with chitosan. Experimental: Treatments consisted of different fertilizers...
to evaluate the effects of fertilizing and deficit irrigation regimes on some chemical properties of soil and plant, an experiment was conducted during 2007 and 2008 growing seasons. experimental design was a split plot based on a randomized complete block design with four replications. the treatments consisted of three deficit irrigation regimes (main plots) and six soil fertilizing systems (s...
One of the greatest advances in agriculture (and thus in human civilization) occurred in the middle of the 20 century, when strains of crop plants were developed that allowed considerably greater yields, at the expense of high inputs of nitrogenous fertilizer. The resulting increase in the use of nitrogenous fertilizers came at a great cost, however. As much as 1% of the total global energy bud...
in recent years the use of organic and biological modifier as an environmental friendly replacement for chemical fertilizers has been used more. in order to study the effect of different levels of biological fertilizers and mushroom compost on flower yield and characteristics of saffron corms (crocus sativus l.), a split plot experiment based on rcbd design with three replications was conducted...
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