【正文】 本次規(guī)劃 具體 確定 灌區(qū)內(nèi) 清塘 鋪 鎮(zhèn)的木橋村、 山溪村、 三里 沖i ncrease ri ce harvests wi thout expandi ng the area of the fi el ds. In 1950, Chi nese farm ers coul d produce onl y fi fty m il li on tons of ri ce. In a recent harvest, however, nearl y two hundred m il i on tons of ri ce was produced. These increased harvests m ean that 22% of thwart world’s peopl e are fed from just 7% of the farm l and in Chi na. Dr Yuan i s now ci rcul ati ng his knowl edge i n Indi a, Vi etnam and m any other less devel oped countri es to i ncrease their ri ce harvests. Thanks to his research, farm ers are produci ng harvests twi ce as l arge as before. Dr Yuan i s quite satisfi ed wi th hi s l ife. H owever, he doesn39。灌區(qū)總?cè)丝?，全灌區(qū)總面積 ，耕地面積 萬畝，目前實(shí)際灌溉面積 萬畝。 主干渠以上已基本完成襯砌和續(xù)建配套 ，目前形成了以廖家坪中型水庫為龍頭，渠道為網(wǎng)絡(luò)，山塘、河壩、泵站為基礎(chǔ)的灌溉網(wǎng)絡(luò)體系。 水源為資江水系伊水一級(jí)支流漳溪中游的廖家坪水庫， 灌區(qū)內(nèi) 建有干渠 3條 ，支渠 26 條 ， 干渠已建成 隧洞 70 處，渡槽 11 處 ，倒虹吸管 11 處 。 廖家坪灌區(qū)是我縣的一個(gè)中型灌區(qū) ,1971 年動(dòng)工修建， 1978 年基本投入運(yùn)行。多年平均降水量為 1622mm，作物種植以稻谷、黃豆、花生、烤煙、茶葉等為主。t care about bei ng fam ous. H e feel s i t gives him l ess freedom to do hi s research. He woul d rather keep tim e for his hobbi es. H e enjoys l i stening to vol in m usi c, pl aying m ahjong, swi mmi ng and readi ng. Spending m oney on him sel f or l eadi ng a fortabl e l i fe al so m eans very l ittl e to him. Indeed, he beli eves that a person with to m uch m oney has m ore rather than fewer troubl s. H e therefore gi ves mi l ions of Yuan to equi p others for thei r research i n agricul ture. Just dreami ng for thi ngs, however, costs nothi ng. Long ago Dr Yuan had a dream about ri ce pl ants as tal as shum. Each ear of ri ce was as bi g as an ear of corn and each grai n of ri ce was as huge as a peanut. Dr Yuan awoke from hi s dream with the hope of produci ng a ki nd of rice that coul d feed more peopl e. N ow, m any years l ater, Dr Yuan has another dream : to export hi s ri ce so that i t can be grown around the gl boe. O ne dream i s not al ways enough, especial y for a person who loves and cares for his peopl e. Chem i cal or anic farmi ng? O ver the past hal f century, using chemi cal fertil i zers has ve e very m on in farmi ng. Many farm ers wel ed them as great way to stop crop di sease and i ncrease producti on. Recentl y, however, sci enti sts have been fi nding that l ongterm use of these fertil izers 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 probl em s caused by chemi cal fertil izers? Fi rst, they dam age the l and by kil li ng the hel pful bacteri a and pests as wel as the harm ful ones. Chem ical s al so stay i n the ground and underground water for a l onog ti me. Thi s affects crops and, therefore, anim al s and hum ans, si nce chemi cal s get i nsi de the crops and cannot just be washed off. These chem ical s in the food supl y buil d up i n people’s bodi es over tim e. Many of these chem i cal s can l ead to cancer or other i l neses. In additi on, fruit, vegetabl es and other food grown with chemi cal fertil i zers usual l y grow too fast to be ful of m uch nutri ti on. They m ay l ook beauti ful , but i nsi de there i s usual y m ore water than vi tam i ns and m i neral s. Wi th these di scoveri es, som e farm ers and m any custom ers are begi nni ng to turn to ani c farm i ng. O rgani c farmi ng i s sim pl y farm i ng wi thout usi ng any chemi cals. They focus on keepi ng thei r soil ri ch and free of di sease. A heal thy soi l reduces di sease and hel ps crops grow strong and heal thy. O rgani c farm ers, therefore, often prefer usi ng natural waste from anim al s as fertil izer. They feel that thi s m akes the soil i n thei r fi el ds ri cher i n m i neral s and so m ore fertil e. Thi s al so keeps the air, soil, water and crops free from chem ical s. O rganic farm ers al so use many other m ethods to kep the soi l fertil e. They often change the knd of crop i n each fi el d 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 im portant mi neral s back i nto the soi l, m aki ng i t ready for crops such as wheat or corn that need rich and fertil e soil . O rgani c farm ers al so pl ant crops to use different levels of soi l, for exam pl e, pl anti ng peanuts that use the ground’s surface fol owed by vegetabl es that put down deep roots. Som e anic farm ers prefer pl anti ng grass between crops to prevent wi nd or water from caryi ng away the soil, and then leaving i t i n the ground to be e a natural fertil i zer for the next year’s crop. These m any di fferent anic farmi ng m ethods have the sam e goal : to grow good food and avoi d dam aging the envi ronm ent or peopl e’s health. An earl y farm er pi oneer Som e peopl e thought Ji a Si xie 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. H e had al ways been i nterested i n agri cul ture and i ntended to do som ethi ng to m ake Chi nese farm i ng even beter. Jia Si xi e li ved i n the si x century AD. H e was born in Yidu i n Shandong provi nce and worked i n Gaoyang, which i s al so i n Shangdong. As he rode through the countrysi de on hi s journeys for hi s work he looked out at the fi el ds. Som e of them were greener and had m ore crops than others. Some cows and sheep l ooked heal thi er than others too. H e was l ost i n though. What coul d a farm er 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 coul d use hi s knowl edge to fi nd out the best ways for farm ers to grow crops and then wri te a book to hel p them . In doi ng so he col ected i nform ation from farm ers who di d wel , studi ed i t and di d experi m ents to fi nd the best way. For exampl e, he studi ed ways of keepi ng seeds and advi sed farm ers to choose seedheads whi ch had the best color. Then he tol