Wednesday, 9 July 2014

Bibliography (Myat Noe)

When do carnivorous plants feed on insects?


1. Rice, B. (n.d.). The Carnivorous Plant FAQ: What do carnivorous plants eat?. The Carnivorous Plant FAQ: What do carnivorous plants eat?. Retrieved July 6, 2014, from http://www.sarracenia.com/faq/faq1240.html

2. Szesze, M. (n.d.). Growing Tips | Carnivorous Plant Nursery. Growing Tips | Carnivorous Plant Nursery. Retrieved July 7, 2014, from http://www.carnivorousplantnursery.com/info/growing.htm

Monday, 7 July 2014

Bibliography (Xueqin)

How do we measure our water quality? 

epa.gov (2012)How do we measure our water quality? . (2012, March 6). Retrieved July 4, 2014, from <http://water.epa.gov/learn/resources/measure.cfm>

Bibliography (Chelsea)

Which method is better for the growth of plants - Hydroponics or natural environment? Why?



Plant Nutrients. (n.d.). Plant Nutrients. Retrieved July 4, 2014, from http://www.ncagr.gov/cyber/kidswrld/plant/nutrient.htm

Bibliography (Nehal)

What is the effect of nitrogen on agricultural production systems?


1. Jones, G. (2001, January 1). Healthyag - Alternative Agriculture - Agricultural Production Systems. Healthyag - Alternative Agriculture - Agricultural Production Systems. Retrieved July 4, 2014, from http://www.healthyag.com/alter_prod.html

2. NITROGEN: AN ESSENTIAL ELEMENT IN CROP PRODUCTION. (n.d.). NITROGEN: AN ESSENTIAL ELEMENT IN CROP PRODUCTION. Retrieved July 4, 2014, from http://www.nachurs.com/nitrogen.html

Literature Review [Myat Noe]

When do carnivorous plants feel a need to feed on insects? 


Barry Rice (2005) investigated what carnivorous plants ate. According to him, it mostly depends on where they live. Many carnivorous plants live with their traps submerged in water and they capture small and large prey. Meanwhile, Pinguicula and Drosera often catch flying insects like gnats, flies, and moths. Pitcher plants capture foraging insects, especially flies, moths, wasps, butterflies, beetles, and ants, while Venus flytraps capture any crawling insect.

[sourced from: http://www.sarracenia.com/faq/faq1240.html_]


According to tips given by Michael Szesze (2005), carnivorous plants should not be fed or fertilized as the plants will be able to collect enough insects on their own to do well. Most carnivorous plants only need an insect or two a month in order to flourish. He said never use raw meat or cheese, as large pieces will kill the traps and that the best source of nutrition are probably freeze-dried insects from a pet shop, or a culture of wingless fruit flies. He also says that carnivorous plants grown with no insect supplemental feedings will not flourish and to not overdo it. 
[sourced from: http://www.carnivorousplantnursery.com/info/growing.htm]

Saturday, 5 July 2014

Literature Review [Nehal]

What is the effect of nitrogen on agricultural production systems?


Jones (2001) mentioned that every agricultural production system is unique and can be related to numerous inherent assumptions and basic limitations. In one of his articles, he discovered that farmers are slowly manipulating their agricultural systems while developing certain practices which help to grow healthy plants. One of the organic methods used was crop rotation.
[sourced from: http://www.healthyag.com/alter_prod.html]

Chachurs (n.d.) understands what happens to the nitrogen in the soil. Most of the Nitrogen (97 – 98%) in the soil is tied up in the organic matter and unavailable to plants.  Only 2 – 3% is in the inorganic form of nitrate and the ammonium forms that is available to plants.  The organic matter is continuously being broken down by microorganisms and released as inorganic Nitrogen into the soil.  This process is called mineralization.  

[sourced from: http://www.nachurs.com/nitrogen.html

Literature Review [Chelsea]

Which method is better for the growth of plants - Hydroponics or natural environment? Why?


BBC (n.d.) investigated what hydroponics is. According to them, it is a form of growing crops in glasshouses where soil is replaced by a mineral solution pumped around the plant roots. Without soil, there is no risk for any disease by soil organisms but the plants have to be supported. Growth can be controlled by making changes to the concentration of minerals in the solution. Food products are grown there to increase productivity, for example growing tomatoes in glasshouses. An advantage of this artificial environment is that the growing conditions are observable and is within control to improve productivity. Furthermore, it allows crops to be grown where there is no soil. Hydroponics is a costly method of growing plants, so it is only used for high-value crops.

ncagr (n.d.) investigated what mineral nutrients were required for plants to grow. The primary nutrients are nitrogen, phosphorus, and potassium. They usually are lacking from the soil first as plants use large amounts of them to grow and survive. The secondary nutrients are calcium, magnesium, and sulfur. There are usually enough of these in the soil. Lastly, there are the micronutrients, which are only needed in very small quantities, but essential for plant growth. They are boron, copper, iron, chloride, manganese, molybdenum and zinc. 
Sourced from: http://www.ncagr.gov/cyber/kidswrld/plant/nutrient.htm