Urban Grange Technologies

- Samuel Tan
[Sent from mobile device]

-original message-
Subject: Sprouting seeds
From: “Samuel Tan”
Date: 01/08/2010 19:56

- Samuel Tan
[Sent from mobile device]

It all boils down to the rise or fall of a currency within a single day. Yet it is pretty amazing to find that an otherwise dry daily summary report can be described concisely in such an interesting and illustrative way.

EURO SUMMARY: Opened at $1.2913 after $1.2861/1.2967 o/n range. — Euro had seen a solid short-squeeze on the back of upbeat Ifo report but pair was relinquishing gains ahead of much awaited stress test outcome. Euro leaked slowly lower to $1.2880 area to test bids and nearby stops, the pair getting a shove lower as wire released stress test parameters that left market unimpressed. Euro losses stretched to $1.2794 as intra-day longs bailed but layered bids sub $1.2800 cushioned the fall for rebound to $1.2835 ahead of the option cut. Further chop above $1.2800 resolved higher for trade to $1.2860 ahead of stress test results and pair spiked to $1.2905 before reversing to $1.2827 on release of outcomes. Further drift lower saw euro base at $1.2805 amid light flow but thin conditions allowed return to $1.2880 in early afternoon. Further gains, against a backdrop of rising U.S. stocks, saw euro stretch to $1.2925 by late in the session.

Seedling: 4000 lux, 1100 lm @ 0.15 m

Vegetative: 27000 lux, 7600 lm @ 0.15 m

Flowering: 108000 lux, 30000 lm @ 0.15 m

A family from Minnesota, USA working on projects including aquaponics and black soldier flies.

http://greengrassramblings.blogspot.com/

A series of video diary made by a Singaporean, Simon Tay to construct hydroponic indoor garden at home.

http://sgenergycrisis.com/blog/my-projects-2/my-projects/

Hydroponics is a method of growing plants in nutrient solutions without soil. Usually, the roots of the plants hang in water that is enriched with the chemicals necessary for growth. All the nutrients are dissolved in the irrigation water and are supplied at a regular basis to plants. Water, sunlight, and about 15 nutrients provide what is necessary to grow plants hydroponically. Hydroponics is becoming more popular in areas where land for farming is scarce.

Advantages of hydroponic vegetable production include:

• Hydroponically produced vegetables can be of high quality.
• Soil preparation and weeding is reduced or eliminated.
• It is possible to produce very high yields of vegetables on a small area.
• One does not need good soil to grow vegetables.
• Water is used efficiently.
• Pollution of soil with unused nutrients is greatly reduced.

Some of the disadvantages of hydroponics are:

• Cost of initial investment on hydroponic systems is high.
• Hydroponic production is management, capital and labour intensive.
• A high level of expertise is required.
• Daily attention is necessary.
• Specially formulated, soluble nutrients must always be used.
• Pests and diseases remain a big risk.
• Some water borne diseases can spread rapidly in recirculation system.