CAJ | 학술논문

本研究以超级杂交稻P88s/1128为材料，研究了覆膜栽培下不同水分管理方式对超级杂交稻产量及钙（ Ca）、硅（ SiO2）吸收特性的影响，并探讨了硅、钙吸收总量与蒸腾速率之间的相关性。结果表明，覆膜栽培条件下旱作水稻产量比无膜栽培提高了3.64％；覆膜栽培下湿润处理后穗部钙吸收量为1.58kg/hm2，显著高于灌水处理；栽培模式和水分管理2种处理因子均对水稻后期钙、硅的积累量具有一定的影响且存在显著的交互作用；覆膜旱植栽培下超级稻后期蒸腾速率与穗部硅的吸收呈显著正相关（r＝0.8561*，P＝0.0066）。覆膜和后期灌水提高了群体蒸腾速率，有利于营养物质的吸收，同时促进了茎叶中储存的碳水化合物向穗部转运，另一方面，蜡熟期过高的蒸腾速率会导致茎秆中碳水化合物过量输出，可能带来倒伏风险。
본연구이초급잡교도P88s/1128위재료，연구료복막재배하불동수분관리방식대초급잡교도산량급개（ Ca）、규（ SiO2）흡수특성적영향，병탐토료규、개흡수총량여증등속솔지간적상관성。결과표명，복막재배조건하한작수도산량비무막재배제고료3.64％；복막재배하습윤처리후수부개흡수량위1.58kg/hm2，현저고우관수처리；재배모식화수분관리2충처리인자균대수도후기개、규적적루량구유일정적영향차존재현저적교호작용；복막한식재배하초급도후기증등속솔여수부규적흡수정현저정상관（r＝0.8561*，P＝0.0066）。복막화후기관수제고료군체증등속솔，유리우영양물질적흡수，동시촉진료경협중저존적탄수화합물향수부전운，령일방면，사숙기과고적증등속솔회도치경간중탄수화합물과량수출，가능대래도복풍험。
Absorption characteristics of Ca and SiO 2 and transpiration rate under mulching cultivation of upland rice were studied by using P 88 s/1128 as material and with different water managements as treatment .The result shows that the mulching has a significant effect on yield but not on yield component .The absorption amount of calcium in panicle is 1.58 kg/ha under the mulching and moist treatment which is significantly higher than that of the irrigation treatment .The cultivation mode and water management have some influence on the accumulation of SiO 2 and Ca at the late stage , and the interaction of these two processing factors is significant .The corrrelation between the SiO2 quantity of panicle absorbed and transpiration rate is significant ( r=0.8561*, P=0.0066 ) .Mulching and irrigation at the later stages has promoting effects for transpiration rate which is beneficial for absorbing nutrition and carbohydrate translation from stem to panicle .But it would easy to lodging if the transpiration rate so high that carbohydrate in the stems exports excessively .