CAJ | 학술논문

以阜新地区为例，开展不同秸秆还田量对旱地土壤水肥和玉米生长与产量的影响研究。试验设计0 kg?hm -2，6000 kg?hm -2，12000 kg?hm -2，18000 kg?hm -2、24000 kg?hm -2共5个处理，3次重复，共15个小区，小区面积（4 m ×15 m）为60 m2。研究结果表明，对照 CK 不施用秸秆处理，深耕加秸秆的方法，土壤含水量显著增加，除了对照之外，各个处理剂量之间的差异并不明显，且呈先上升而后下降趋势。说明秸秆在土壤中始终处于水分的非饱和状态，并不是秸秆剂量越大越好。各个层次土壤容重与对照相比变化较明显，其中10～20 cm 深处土壤容重变化最大，各个处理土壤容重表现出随秸秆还田量增加土壤容重降低值减少的趋势，下降幅度为12000 kg?hm -2＞6000 kg?hm -2＞ 18000 kg?hm -2。秸秆还田处理，提高了植物的叶绿素含量，促进了植物的光合效率，以12000 kg?hm -2处理较好。不同处理对玉米产量影响差异显著，达到了5％的显著水平，施入量在0～12000 kg?hm -2之间，玉米产量呈上升趋势，超过18000 kg?hm -2产量呈下降趋势，因此建议推广剂量为12000 kg?hm -2。
이부신지구위례，개전불동갈간환전량대한지토양수비화옥미생장여산량적영향연구。시험설계0 kg?hm -2，6000 kg?hm -2，12000 kg?hm -2，18000 kg?hm -2、24000 kg?hm -2공5개처리，3차중복，공15개소구，소구면적（4 m ×15 m）위60 m2。연구결과표명，대조 CK 불시용갈간처리，심경가갈간적방법，토양함수량현저증가，제료대조지외，각개처리제량지간적차이병불명현，차정선상승이후하강추세。설명갈간재토양중시종처우수분적비포화상태，병불시갈간제량월대월호。각개층차토양용중여대조상비변화교명현，기중10～20 cm 심처토양용중변화최대，각개처리토양용중표현출수갈간환전량증가토양용중강저치감소적추세，하강폭도위12000 kg?hm -2＞6000 kg?hm -2＞ 18000 kg?hm -2。갈간환전처리，제고료식물적협록소함량，촉진료식물적광합효솔，이12000 kg?hm -2처리교호。불동처리대옥미산량영향차이현저，체도료5％적현저수평，시입량재0～12000 kg?hm -2지간，옥미산량정상승추세，초과18000 kg?hm -2산량정하강추세，인차건의추엄제량위12000 kg?hm -2。
Taking Fuxin as the target area ,this paper deals with the effect of crop residue incorporation on soil moisture and nutrient and maize yield of arid farmland ,with five treatments of 0 kg?hm - 2 ,6 000 kg?hm - 2 ,12 000 kg?hm - 2 ,18 000 kg?hm - 2 ,24 000 kg?hm - 2 .We had 3 replications and 15 plots ,each having an area of 60 m2 .Re-sults showed that soil moisture content increased markedly ,saving 5% ~ 45% of water as compared with CK (non residue incorporation) .Soil bulk density varied significantly ,showing a decreasing trend of 12 000 kg?hm - 2 > 6 000 kg?hm - 2 > 18 000 kg?hm - 2 ,especially in the 10 ~ 20 cm depth Leaf chlorophyll content and photosynthetic efficiency were increased by crop residue incorporation ,especially for the rate of 12 000 kg?hm - 2 .Crop residue incorporation showed substantial effect on maize yield ,being positive within the range of 0 ~ 12 000 kg?hm - 2 and suppressing above 18 000 kg?hm - 2 .It is thus recommended that the rate of 12 000 kg?hm - 2 be optimum for maize production in the target area .