摘要
本试验采用二次回归正交旋转组合设计方法,对优质烤烟综合施肥措施进行了研究。结果表明:(1).磷素、钾素、有机肥、氮肥4因素对烤烟产值有明显影响;(2).通过计算机寻出了烤烟亩产值500元以上的综合施肥方案;(3).磷肥与钾肥、氮肥与磷肥交互作用显著。
We have studied the method of comprehensive application of fertiliaers to flue-cured super tobacco with the square-regression orthogonolo gyrating design. Our resrlts have given us following suggestions:(1) under the ecological condition in Hongbei area of Xichang, the effect order of the fertilizers appkied to tobacco arranging like this: phosphorus>potassium>organic >nitrogenous>trace; our experiments and production experiences have sown that the key method of increasing the output value of tobacco is controlling nitrogenous, increasing phosphorus and potassium, supplementing manure and rationa distributing nitrogenous, phosphorus and potassirm. (2) the comprehensive application of fertilizers to tobacco yielding the output value of 500 Yuan per mu has a proper range of quantity.(3)there exist obvious interactions between phosphorus and potassium, nitrogenous and phosphorus.
出处
《四川农业大学学报》
CSCD
1995年第1期62-66,共5页
Journal of Sichuan Agricultural University
关键词
烤烟
数学模型
施肥
氮肥
磷肥
钾肥
微肥
FLUE-CURED TOBACCO
MATHEMATIC MODE
APPLICATION OF FERTILIZEOS
NITROGENOUS FERTILIZER
PHOSPHOROUS FERTILIZER
POTASSIUM FERTILIZER
TRACE FERTILIZER
ORGANIC FERTILIZER.