CAJ | 학술논문

研究采用低桩收割，在收割前后采用不同的施肥比例及收割后不同的氮肥施用量，不同的栽植方式、田间密度、丛内密度来研究施肥方式与栽培方式对水稻再生生长的影响进行了较为系统的研究。从芽苗肥配比正交实验结果表明，低桩再生稻割前可不施催芽肥而只施促苗肥，在中等地力和N：P：K固定配比为1：0．3：0．5的情况下，12kg／667m2的纯氮用量为最佳的氮肥施用量。从育秧栽植方式对有效再生率的影响实验中得出，采取盘秧抛栽方式有利于提高再生季的有效再生率。从田间密度和丛内密度对产量的影响实验得知，当田间密度在2．4万丛／667m2，每丛栽一粒谷苗时，为最佳栽培密度。
연구채용저장수할，재수할전후채용불동적시비비례급수할후불동적담비시용량，불동적재식방식、전간밀도、총내밀도래연구시비방식여재배방식대수도재생생장적영향진행료교위계통적연구。종아묘비배비정교실험결과표명，저장재생도할전가불시최아비이지시촉묘비，재중등지력화N：P：K고정배비위1：0．3：0．5적정황하，12kg／667m2적순담용량위최가적담비시용량。종육앙재식방식대유효재생솔적영향실험중득출，채취반앙포재방식유리우제고재생계적유효재생솔。종전간밀도화총내밀도대산량적영향실험득지，당전간밀도재2．4만총／667m2，매총재일립곡묘시，위최가재배밀도。
We systemically studied the effects of low stubble harvest, different fertilizer application ratios before and after the harvest and different nitrogen application rate after the harvest, different planting methods, field density, the density within the plant to study fertilization and planting methods on rice ratooning growth. The results of different bud and tiller fertilizer application ratios based on orthogonal experiment showed that low-stubble ratoon rice did not apply the fertilizer of bud promotion but only tiller fertilizer before harvest. The optimal nitrogen application rate for tiller promotion was 12kg/667m2under the medium soil fertility and the fixed N ： P ： K ratio of 1 ： 0.3 ： 0.5. The methods of seedling cultivation and field farming suggested that throwing rice seedling from plastic plate was the advantage of increasing effective ratooning tiller rate in the second crop. According to the effects of field density and the density within plant on grain yield, the optimal planting density was 24000 plant per 667m2 and one grain seedling of each plant.