摘要
采用生态肥与等量氮、P2O5和K2O不同比例配施与传统施肥方式比较，研究其对小麦生长发育及产量的效应．结果表明：不同肥料结构和用量对拔节后的群体影响显著，处理基部1～3节节间长增加。其增加幅度从28.6％依次降低到7．4％，不同生育期主要器官干物质积累量明显增加．其功能叶面积变化与生育期、茎蘖位和叶位有关，功能叶面积孕穗期比灌浆期高60．2％；主茎比蘖一高14％，比蘖二高72．7％；不同叶位叶面积大小均表现倒二叶〉倒三叶〉旗叶．处理平均比CK增产4．7％．在所有处理中，以9kg／hm^2生态肥与纯氮、P2O5和K2O各60．75kg／hm^2的养分结构效果最好，比CK增产5．8％
Comparison was made between the application of differently proportioned composite fertilizer of eco-fertilizer and equal nitrogen, P205 and K20 and the traditional application of fertilizers for the growth and yield of wheat. It shows different proportions of fertilizer has marked effect on wheat after jointing. The inter-node length of the lst-3rd nodes is increased by a range from 28.6% to 7.4%. The accumulative dry matter of different main organs has a remarkable increase. The change in functional leaf areas is related to the development stage, place of stem and tiller, place of leaf. The functional leaf area at the boot stage is 60.2 % higher than that at filling stage. The functional leaf area of main stem is 14 % higher than tiller 1 and 72.7% than tiller 2. The rank of function leaf areas is the second leaf〉third leaf〉flag leaf. On the average, the yield with the new method of fertilizer application is 4.7% higher than CK. The application of 9 kg/hm^2 coo-fertilizer ＋ 60.75 kg/hm^2 N ＋ 60.75 kg/hm^2 P2O5 ＋ 60.75 kg/hm^2 K20 is better than other combinations, with the yield 5.8 % higher than CK.
出处
《西安文理学院学报（自然科学版）》
2007年第2期19-23,共5页
Journal of Xi’an University(Natural Science Edition)
基金
科技部转化资金项目(05EFN216100285)
关键词
小麦
生态肥
产量
有效养分
wheat
eco-fertilizer
yield
valid nutrient
