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Page "Hydroponics" ¶ 30
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At and planting
At this stage, the compost can be used to prepare fields or other planting areas.
At the start of the 18th century, Jethro Tull, an English gentleman, introduced an improved grain drill that systemized the planting of seed and invented a horse-drawn weed hoe, the two of which allowed fields once choked with weeds to be brought back to production and seed to be used more economically.
At the age of 36, Gatling moved to St. Louis, Missouri where he worked in a dry goods store and invented a rice-sowing machine and a wheat drill ( machines to aid in planting rice and wheat, respectively ).
At the time, the area was almost entirely unbroken virgin forest, which had to be cleared for the construction of houses and the planting of fields.
At the same time the planting of more than six million trees and shrubs transformed the surrounding landscape.
At 19: 38, 701AG attacked, planting two torpedoes in Chicago, causing heavy damage and bringing the cruiser to a dead stop.
At Kensington Palace, then a suburb of London, the planting of the parterres was by Henry Wise, whose nursery was nearby at Brompton.
At suggested planting densities of 600 – 1100 trees / ha, about 12 t fruit can be derived in cultivation from one hectare.
At the start of the 1980s the ' Boston Movement ' established a " vision for the world ", which required the planting of ' pillar churches ' in key metropolitan centers to spread the Christian faith globally.
At the Battle of Missionary Ridge on November 25, 1863 during the Chattanooga Campaign, the 18-year-old MacArthur inspired his regiment by seizing and planting the regimental flag on the crest of Missionary Ridge at a particularly critical moment, shouting " On Wisconsin.
At age 13, Veeck came up with the idea of planting ivy on the walls of Wrigley Field.
At the end of the 20th Century ambitious targets were set and huge increases in planting proposed.
* At the end of the Krusty's campaign advertisement, his face is put on Buzz Aldrin while planting the flag during the moon landing, all the Marines who planted the flag on Iwo Jima, the tank man during the Tiananmen Square protests of 1989 and finally Jim Leavelle who was handcuffed to Lee Harvey Oswald when he was shot by Jack Ruby.
At the Stoke Newington cemetery the botanical planting was carefully sited since the design sought to do as little as possible to change the existing picturesque parkland.
At the height of its violence, Synanon members on October 10, 1978, tried to kill Los Angeles attorney Paul Morantz by planting a rattlesnake in his mailbox.
At KMEX he investigated allegations of police officers planting evidence to implicate Chicanos and the July 1970 police shooting of two unarmed Mexican nationals.
At that time there was only one oak tree on the site and the rest of the planting has been carried out subsequently.

At and rates
At the very moment that every attempt is being made to take management out from under the irrationality of anti-trust legislation, a drive is on to abolish collective bargaining under the guise of extending the anti-monopoly laws to unions who want no more than to continue to set wages in the same way that ship operators set freight rates.
At low refresh rates ( below 50 Hz ), the periodic scanning of the display may produce an irritating flicker that some people perceive more easily than others, especially when viewed with peripheral vision.
At rates below 12 frame / s most people can detect jerkiness associated with the drawing of new images which detracts from the illusion of realistic movement.
At the point when money velocity and prices rapidly accelerate in a vicious circle, hyperinflation is out of control, because ordinary policy mechanisms, such as increasing reserve requirements, raising interest rates, or cutting government spending will be ineffective and be responded to by shifting away from the rapidly devalued money and towards other means of exchange.
At the time, it was anticipated that these addresses could well be fully consumed within three to six months at then-current rates of allocation.
At higher voltages, larger fragments migrate at continuously increasing yet different rates.
At equilibrium, the two rates must be equal.
At the low-end, simple meshes of polygons are used to represent geometric detail in applications where interactive frame rates or simplicity are important.
" At the same time, the investment community was worried about proposed legal reforms, including the Wall Street Reform and Consumer Protection Act which dealt with matters such as credit card rates and lending requirements.
At least two million people annually die of these diseases, and the morbidity rates are many times higher still.
At low transmission rates data can also be transferred via an electrical interface.
At that time, investors were being paid impressive rates, encouraging others to invest.
At lower bit rates ( e. g., less than 0. 25 bits / pixel for grayscale images ), JPEG 2000 has a much more significant advantage over certain modes of JPEG: artifacts are less visible and there is almost no blocking.
At the same time, the Bank of Canada began to raise interest rates in order to meet a zero inflation target ; the experiment was regarded as a failure that exacerbated the effect of the recession in Canada.
At higher clock rates, the useful CAS latency in clock cycles naturally increases.
At current rates of growth, the number of residents will double every 21 years.
At the time they were owned by the mill and rented at very low rates to workers.
At the end of the 1980s Wink operated on a limited budget, based on low tax rates.
At its most extreme, workers are in " debt bondage ": they must work to pay off a debt at such punitive interest rates that it may never be paid off.
At present rates, there will be three people in their nineties for every newborn by 2050.
At high bubble generation rates, the bubbles begin to interfere and the heat flux no longer increases rapidly with surface temperature ( this is the departure from nucleate boiling, or DNB ).
At a time when investment banks were anxious for more capital for their enterprises, President Ulysses S. Grant's monetary policy of contracting the money supply ( again, also thereby raising interest rates ) made matters worse for those in debt.
At the fastest, it could sustain transfer rates of 80 million 32-bit words per second per port, for a total transfer capacity of 640M-words / sec.
At the same time the Swedish currency began to decline ; the first reaction from the central bank was to try to keep the current fixed exchange rates in place, and they set a target for their equivalent to the federal funds rate (" marginal rate ") at 500 %.

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