内蒙古民族大学学报（自然科学版）
內矇古民族大學學報（自然科學版）
내몽고민족대학학보（자연과학판）
JOURNAL OF INNER MONGOLIA UNIVERSITY FOR NATIONALITIES(NATURAL SCIENCES)
2015年
1期
49-52
,共4页
无芒雀麦%水氮耦合%生物量%相关性
無芒雀麥%水氮耦閤%生物量%相關性
무망작맥%수담우합%생물량%상관성
Bromus inermis%Combining water and nitrogen%Biomass%Correlation analysis
在盆栽控制条件下，设土壤田间持水量的40%、60%、80%3个水分梯度，0，0.564，1.128，1.692和2.257g/盆（纯氮量）5个氮肥梯度，对一年龄分蘖期无芒雀麦进行水分和氮肥组合处理，研究水氮耦合对无芒雀麦形态特征的影响.试验结果表明，无芒雀麦的地上生物量形成存在水氮的耦合效应，低氮和低水制约了无芒雀麦的生长，高水高氮也不利于无芒雀麦形成新枝条和增加生物量.
在盆栽控製條件下，設土壤田間持水量的40%、60%、80%3箇水分梯度，0，0.564，1.128，1.692和2.257g/盆（純氮量）5箇氮肥梯度，對一年齡分蘗期無芒雀麥進行水分和氮肥組閤處理，研究水氮耦閤對無芒雀麥形態特徵的影響.試驗結果錶明，無芒雀麥的地上生物量形成存在水氮的耦閤效應，低氮和低水製約瞭無芒雀麥的生長，高水高氮也不利于無芒雀麥形成新枝條和增加生物量.
재분재공제조건하，설토양전간지수량적40%、60%、80%3개수분제도，0，0.564，1.128，1.692화2.257g/분（순담량）5개담비제도，대일년령분얼기무망작맥진행수분화담비조합처리，연구수담우합대무망작맥형태특정적영향.시험결과표명，무망작맥적지상생물량형성존재수담적우합효응，저담화저수제약료무망작맥적생장，고수고담야불리우무망작맥형성신지조화증가생물량.
In potted condition under control,3 water gradient(40%, 60%, 80%of field capacity)and 5 nitrogen gra-dient(0, 0.564, 1.128, 1.692 and 2.257g/pot)had been set to conduct the treatment of combining water and nitrogen on one age Bromus inermis in tillering stage. Then, studied the the effects of water and nitrogen coupling on morpho-logical characteristics of bromus inermis. The results showed that there was water and nitrogen coupling effects exist-ed in the formation of aboveground biomass. And the growth of bromus inerm was restricted by low nitrogen and wa-ter. Additionally, high water and high nitrogen was also not conducive to the formation of new branches and the in-crease of biomass.
