Essay On Pot Experiment

Words: 1057

Pages: 5

Open Document

Materials and Methods
The pot experiment was conducted in the greenhouse C4b in Dahlem (Albrecht Daniel Thaer – Institute für Agrar und Gartenbauwissenschaften) under specific experimental conditions, 20/25 °C (daily mean temperature) with 14:10h light:dark photoperiod, 60-65 Lux (light intensity) and 38-45% humidity. The soil was collected from paths from Thyrow region (Brandenburg, Germany, 52°15'0" N, 13°14'0" E) and sieved through a sieve (1 cm mesh size). The pots were washed, sterilized, dried and filled with 3.5 Kg soil prepared by mixing Thyrow soil with 2% from Dahlem soil (Steglitz-Zehlendorf, Berlin, Germany, 52°27'29"N, 13°17'15"E) as a source of inoculum. The Dahlem soil was sieved before mixing through a sieve with 3 mm mesh size. Field capacity was measured by estimating water content and field capacity of Thyrow soil (natural wet soil) in 9 replicates. First, for field capacity, each sample of 100 gm soil was placed in a funnel plugged with a small piece of cotton or …show more content…
Then, the funnel was fixed to a cylinder and 100 ml water was added to soil in the funnel slowly. Watch glass dish was used to cover the upper surface of the funnel to avoid losing any water by evaporation. The start time of each sample was recorded to calculate the amount of collecting water in the cylinder after one hour. The retained water in the soil was calculated simply (100 – the collected water in the cylinder) with considering the amount of water in the cotton or ply tissue. Water content was estimated in additional samples (100 gm) by weighting the soil samples (W1) and afterward drying them at 105 °C (W2). The final field capacity was the sum of field capacity of original soil (retained water in the soil) and water content (W1 – W2). According to this methodology, the field capacity for each pot (3.5 kg)

What Makes Evidence Puzzling, Difficult And Interesting?

Puzzling, Difficult—and Interesting? We have been thinking and writing about different kinds of summaries (again) as the basis for engaging with a text and its arguments. We’ve been also talking about looking for the key sentences and claims of an essay. In this exercise, I ask you to consider a number of passages, paraphrase their meaning, and writing a summary in response to them. Here’s what to do: 1) Read Randolph Bourne, Trans-national America 2) Annotate the articles by elaborating on…

Words 355 - Pages 2

Different Types Of Teachers

they don’t know. Similarly to an observation Lawrence Otis Graham made when he was growing up “at least two tables of athletes, an Italian table, a Jewish girls’ table, a Jewish boys table, a table of kids who were into heavy metal music and smoking pot, a table of middle-class Irish kids”(Graham 346). He went on to say “no one even acknowledged the segregated nature of those other tables” (Graham 346). Mr. Brenneman is attempting to eliminate this issue simply by having every student work with each…

Words 1345 - Pages 6

Women Immersed in a Culture in Decline Essay

Thunderstorms always seemed to rattle the shaky old cottage in the middle of the desert; and it had finally stopped and our family found tranquility in the night again. It was the summer when I was about five years of age. The melancholy night soon turned into hell once again. Our family was a woken with sounds of breaking plates and smashing pans on the ground through out the kitchen. The air all of a sudden seemed cold and damp with a smell of rotting flesh. Being the second youngest in my…

Words 1788 - Pages 8

Legalization of Marijuana Essay

Legalization of Marijuana: Pros and Cons Cannabis, also known by its Spanish and commonly used name “marijuana”, is perhaps the most controversial and widely used illicit drug in the United States today, second only to the legal recreational substance, alcohol. From the 1960s to the 1970s, marijuana became more than just a drug. It grew to become a symbol in its own right, a flag of the revolutionists that rejected the leadership and materialism of mainstream American culture. As a result of…

Words 2902 - Pages 12

Essay about AP HISTORY QUESTIONS

Klo Bu U2L10 Mr.Breisher 15 October 2014 1. George Washington-on May 28 1754 then a 22 year old gentleman farmer promoted to lieutenant colonel in the Virginia militia 2. Fort Dequesne- French troops had been sent from what is now Pittsburgh to look for Washington’s force. It was part of a string of French forts built along the Ohio and Mississippi Rivers to maintain New France's claims in the region. 3. French and Indian War- 1754-1763 The war was fought between the colonies of British America…

Words 2090 - Pages 9

AP Biology Paper

Part I. Introduction Chapter 1. What is Human Ecology? Chapter 2. Environment, Technology, and Culture What Is Human Ecology? 1 Chapter 1. WHAT IS HUMAN ECOLOGY? Another Unique Species (Title of Robert Foley’s 1987 book on evolutionary human ecology) I. Introduction What is human ecology? Human ecology is an approach to the study of human behavior marked by two committments. First, human ecologists think that humans should be studied living systems operating in complex environments…

Words 7920 - Pages 32

Thoery essay

Discuss Factors and Theories that Influence Children and Young People’s Development and How these Influence Current Practice. Within this essay I am going to discuss and explain the differences between Personal factor and External factor. As well as discussing and conversing the different factors I am also going to talk about the influence of child development within three theorists, these three theorists are Maria Montessori, Lev Yvgotsky and Jean Piaget. Once I have explained each theorist and…

Words 4013 - Pages 17

Grade 9 Literature Terms Essay

Literature Terms Term Definition Example Poetry Terms and Poetic Sound Devices Alliteration Allusion Assonance Consonance Onomatopoeia Rhyme Approximate (slant) Rhyme End Rhyme Repetition of the same or very similar consonant sounds usually at the beginnings of words that are close together in a poem. Reference to a statement, a person, a place, or an event from literature, history, religion, mythology, politics, sports, science, or pop culture. Repetition of similar vowel…

Words 4227 - Pages 17

Did the Impact of the Beatles Sgt Pepper Album Help Redefine Popular Music as a Culturally Significant Art Form? Essay

significant art form? Summary of Assignment Choose an artist from the period 1900-1970 and to examine their relationship to the cultural and social framework of their era with reference to an important or influential album. Introduction In this essay I will be critically analysing and evaluating ‘The Beatles’ Sgt. Peppers album in relation to their associated genre, their lyrics, their musical creativity, their social and political context, their overall impact on music and popular culture and…

Words 4155 - Pages 17

Explore Critically How Pupils Learn In Art And Design

Explore Critically how Pupils Learn in Art and Design Introduction The delivery of truly excellent teaching requires an in depth understand of how learners most efficiently receive information. This essay studies six diverse pupils, within a learning environment, through assessment of the learner’s response to different teaching styles preliminary understanding of how best pupils learn in Art and Design can be established. From this point teaching strategies can be employed to aid learners in…

Words 4706 - Pages 19