论文部分内容阅读
水稻免耕旱播耕作法集免耕旱播、湿润溉灌、良种配套、化学除草、合理施肥、高产栽培于一体，既省工节本，又高产高效和改善土壤理化性状。经几年对比试验观察，免耕旱播比翻耕直播和翻耕移栽，每公顷增谷１８９ｋｇ和９３ｋｇ；加上省工节本，效益分别增加５６４元和１２８５元；耕层土壤通气孔隙增加１．０３～５．０３个百分点；＜０．０１微团聚体差别不大，０．０５、０．２５ｍｍ粗微团聚体增加２０．０６和８．３个百分点；易氧化有机质提高０．０７和０．１２个百分点；速效钾提高２４ｍｇ／ｋｇ、２５ｍｇ／ｋｇ。
The technology of no-tillage and dry-sowing cultivation of rice combines the technologies of no-tillage and dry sowing, wet irrigating and irrigation, thoroughbred planting, chemical weeding, rational fertilization and high-yield cultivation, which not only saves labor, but also produces high yield and high efficiency and improves soil physical and chemical properties. After several years of comparative experiments observed, no-till dry sowing than tillage and tillage transplanting, 189 hectares per hectare and 93kg; with the provincial labor-saving, the benefits increased 564 yuan and 1285 yuan respectively; Increase 1.03 ~ 5.03 percentage points; <0.01 microaggregates little difference, 0.05,0.25 mm coarse microaggregates increased 20.06 and 8.3 percentage points; easy oxidation of organic matter increased by 0. 07 and 0.12 percentage points; available potassium increased 24mg / kg, 25mg / kg.