年产2万吨节能铝合金型材型材项目_可行性研究报告(编辑修改稿)

年产2万吨节能铝合金型材型材项目_可行性研究报告(编辑修改稿)内容摘要：

gl boe. One dream i s not al ways enough, especi al y for a person who loves and cares for his peopl e. Chem ical or ani c farmi ng? Over the past half century, usi ng chemi cal fertil zers has vee very m on in farmi ng. Many farm ers wel ed them as great way to stop crop disease and i ncrease production. Recently, however, scienti sts have been fi ndi ng that l ongterm use of these ferti li zers can cause dam age to the l and and, even m ore dangerous, to peopl e’s heal th. What are som e of the problems caused by chemi cal fertil zers? Fi rst, they damage the l and by ki li ng the helpful bacteri a and pests as wel as the harm ful ones. Chemi cal s al so stay i n the ground and underground water for a l onog tim e. This affects crops and, therefore, anim al s and hum ans, si nce chemi cal s get insi de the crops and cannot just be washed of. These chem icals i n the food supl y buil d up i n people’s bodi es over tim e. Many of these chem ical s can l ead to cancer or other il lneses. In adition, frui t, vegetabl es and other food grown with chemi cal ferti li zers usual y grow too fast to be ful of m uch nutrition. They m ay l ook beautiful, but i nsi de there i s usual y more water than vi tam i ns and mi nerals. With these discoveri es, som e farmers and many custom ers are begi ning to turn to anic farmi ng. O rgani c farm i ng i s sim pl y farm ing without usi ng any chemi cals. They focus on kepi ng their soi l ri ch and fre of disease. A healthy soil reduces di sease and hel ps crops grow strong and healthy. O rgani c farmers, therefore, often prefer usi ng natural waste from animal s as fertil zer. They feel that thi s makes the soil i n their fiel ds richer i n m inerals and so m ore ferti l e. Thi s al so keps the air, soil, water and crops free from chemi cal s. O rgani c farmers al so use m any other methods to keep the soi l ferti le. They often change the knd of crop i n each fi eld every few years, for exam pl e, growi ng corn or wheat and then the next year peas or soybeans. Crops such as peas or soybeans put important mi neral s back i nto the soi l, maki ng it ready for crops such as wheat or corn that need rich and ferti le soi l. O rganic farmers al so pl ant crops to use di fferent l evel s of soil , for example, pl anting peanuts that use the ground’s surface fol owed by vegetabl es that put down deep roots. Some ani c farm ers prefer pl anti ng grass between crops to prevent wi nd or water from caryi ng away the soil , and then l eavi ng it i n the ground to bee a natural fertil zer for the next year’s crop. These many di fferent ani c farm ing m ethods have the same goal: to grow good food and avoi d damagi ng the envi ronm ent or peopl e’s heal th. An earl y farmer pi oner Som e people thought Ji a Si xi e was a l ucky m an. H e had worked for the em peror and when he got ol d, he was abl e to go hi s hom etown to rel ax. Ji a Si xi e, however, had other pl ans. He had always been interested in agri culture and i ntended to do som ethi ng to m ake Chi nese farmi ng even beter. Jia Si xi e li ved i n the six century AD. He was born i n Yi du in Shandong provi nce and worked i n Gaoyang, whi ch is also i n Shangdong. As he rode through the countrysi de on hi s journeys for hi s work he l oked out at the fi el ds. Some of them were grener and had m ore crops than others. Som e cows and sheep l ooked heal thi er than others to. H e was l ost i n though. What coul d a farmer do to get good crops from hi s fi el ds? Surel y there m ust be rul es that woul d hel p them . H e thought he could use his knowl edge to fi nd out the best ways for farm ers to grow crops and then wri te a book to help them. In doi ng so he col ected i nform ation from farmers who di d wel l, studied i t and did experim ents to find the best way. For exam pl e, he studied ways of keepi ng seeds and advised farm ers to chose seedheads which had the best color. Then he tol d them to hang them to dry al l wi nter. The next spri ng the seeds shoul d be knocked out of thei r seedheads and pl anted. H e studied how to im prove the soil. He advi sed farm ers to cl ear weeds from the ground before pl anti ng crops. They coul d either l et the anim al s eat the weeds or turn the soil over so that the weeds were covered and woul d rot. Then he gave advi ce on Turi ng over the soi l. The fi rst time each year, farmers shoul d di g deepl y, but the second tim e shoul d be l ess deep. Therefore the autum n pl oughing of the soi l shoul d be deeper thant the spri ng ploughi ng. He suggested changi ng crops i n the field every year: ri ve one year and wheat the next so that they woul d al ways get good harvests. They shoul d al so grow di fferent plants next to each other i n the fi el d. He also gave adi ve on how to fish, keep a garden and even m ake wi ne. H e wrote down hi s i n a book cal ed Qi Mi n Yao Shu, whi ch was consi dered an im portant summary of the knowledge of farmi ng. For centuri es after Ji a Si xie di ed, it was studi ed by Chi nese farm ers and students of agri cul ture. Uni t 3 A MASTER O F NON VERBAL H UMO UR As Victor H ugo once said, “Laughter is the sun that drives winter from the human face”, and up to now nobody has ben abl e to do this better than Charli e Chapli n. H e bri ghtened the li ves of Am eri cans and Bri ti sh through two worl d wars and the hard years in betwen. He m ade people l augh at a tim e when they felt depressed, so they coul d feel m ore content wi th their li ves. N ot that Charl ie’s own life was easy! H e was born in a poor family in 1889. His parents were both por music hal performers. You may find i t astoni shi ng that Charl ie was taught to si ng as soon as he coul d speak and dance as soon as he could walk. Such trai ni ng was m on i n acting famil i es at that tim e, especi al y when the famil y i ne was often uncertain. Unfortunatel y hi s father di ed, leavi ng the fami ly even worse off,。