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旨在研究耕旋旱直播稻的高产栽培技术,其目的是解决水直播稻和免耕旱直播稻等播种深浅不一、落籽不均、苗层分布不匀、扎根较浅、容易产生倒伏等问题。采用耕旋旱直播稻,可避免上述现象的发生。实践证明,耕旋旱直播稻与免耕旱直播稻相比,畦面平整,光滑无麦秸草覆盖阻隔,通透性能好,沟系健全,灌排方便,播种落籽均匀,出苗整齐一致,见苗快,分蘖早,成苗成穗率高,茎杆粗壮,穗大粒多,耐肥抗倒。通过试验、示范研究,已收到较好的增产效果。据统计,耕旋旱直播稻实收单产604.8kg/667 m2,与免耕旱直播稻单产547.4 kg/667 m2相比,增57.4 kg/667 m2,增产10.4%。同时还摸索出一套适应耕旋旱直播稻的高产配套栽培技术,从而为指导今后大面积旱直播稻提供了可靠的科学依据。
The purpose of this research is to study the high-yielding cultivation techniques of direct seeding rice in direct rotation and drought cultivation. The purpose is to solve the problems of direct seeding rice and no-till dry seeding rice, which have different shades of sowing, uneven seedings, uneven seedling distribution, And other issues. The use of direct seeding drought farming rice, to avoid the occurrence of these phenomena. Practice has proved that cultivation of direct seeding rice and no-till dry direct seeding rice, smooth surface, smooth without wheat straw cover barrier, good permeability, sound ditch, irrigation and drainage convenience, sowing seeds evenly, the emergence of neat and consistent, See Miao fast, early tillering, into a spike into a high rate of stalks stout, spike large grain, resistant to lodging. Through tests, demonstration studies, has received a good yield increase. According to statistics, the yield of direct seeding rice farming is 604.8kg / 667m2, increased by 57.4 kg / 667m2 compared with 547.4kg / 667m2 of no-till direct seeding rice yield, increasing by 10.4%. At the same time, it also explored a set of high-yielding cultivation techniques suitable for cultivation of direct seeding rice in dry land, thus providing a reliable scientific basis for directing large-area dry seeding of rice in the future.