江苏水利
江囌水利
강소수리
JIANGSU WATER RESOURCES
2014年
5期
5-8
,共4页
免耕%共生套稻%套直播稻%机插稻%节水
免耕%共生套稻%套直播稻%機插稻%節水
면경%공생투도%투직파도%궤삽도%절수
No-till%symbiotic set of rice%direct seeding rice%machine transplanting rice%water saving
针对水稻常规种植用水量大与我国水资源紧缺的矛盾，围绕节水栽培，以机插稻作为对照，研究共生套稻、套直播稻这两种免耕套稻种植模式的节水效能。结果表明，与耕耙作业的机插稻大田相比，免耕套稻减少灌溉次数44.4%，节省灌溉用水1/3，其中，共生套稻节水135.88 m3/亩，套直播稻节水170.37 m3/亩；免耕套稻全生育期耗水量比机插稻减少20.2%，平均日减少水分蒸发和流失24.4%，其日耗水量差异主要在大田分蘖期，机插稻日耗水量达10.99 mm，而免耕套稻平均日耗水量为8 mm左右，减少27.3%。
針對水稻常規種植用水量大與我國水資源緊缺的矛盾，圍繞節水栽培，以機插稻作為對照，研究共生套稻、套直播稻這兩種免耕套稻種植模式的節水效能。結果錶明，與耕耙作業的機插稻大田相比，免耕套稻減少灌溉次數44.4%，節省灌溉用水1/3，其中，共生套稻節水135.88 m3/畝，套直播稻節水170.37 m3/畝；免耕套稻全生育期耗水量比機插稻減少20.2%，平均日減少水分蒸髮和流失24.4%，其日耗水量差異主要在大田分蘗期，機插稻日耗水量達10.99 mm，而免耕套稻平均日耗水量為8 mm左右，減少27.3%。
침대수도상규충식용수량대여아국수자원긴결적모순，위요절수재배，이궤삽도작위대조，연구공생투도、투직파도저량충면경투도충식모식적절수효능。결과표명，여경파작업적궤삽도대전상비，면경투도감소관개차수44.4%，절성관개용수1/3，기중，공생투도절수135.88 m3/무，투직파도절수170.37 m3/무；면경투도전생육기모수량비궤삽도감소20.2%，평균일감소수분증발화류실24.4%，기일모수량차이주요재대전분얼기，궤삽도일모수량체10.99 mm，이면경투도평균일모수량위8 mm좌우，감소27.3%。
According to the conventional rice planting large water consumption and the shortage of China′s water resources,the water saving cultivation,by machine transplanting rice as the control,study on water saving efficiency of direct seeding rice, symbiotic rice the two no-till rice planting mode.The results show that,compared with the tillage operation machine transplanting rice field,no-till cropping rice reduced irrigation frequency about 44.4%;saved irrigation water about 1/3,among them, symbiotic set of rice water saving 135.88 m3/mu,direct seeding rice water saving 170.37 m3/mu;no-till set of rice planting water consumption in the whole growth period is less than machine transplanting rice by 20.2%,the average daily reduction of water evaporation and loss of 24.4%;daily water consumption differences are mainly in the field of machine transplanting rice tilling stage,the daily water consumption of up to 10.99 mm,and no tillage cropping rice with average daily water consumption of about 8 mm,reduced by 27.3%.
