摘要
本研究以氮磷钾1:1:2为固定比,设置3个施氮水平(15,20,25斤/亩),3个密度水平(1111,1333,1666株/亩),随机区组排列,探讨不同肥密组合对烤烟生育、产量和品质的影响.结果表明:随着施肥水平的提高,烟株各部位叶片增长、增宽、增重,产量、产值提高;中肥水平的品质最好.随着密度的增加,产量、产值递增,主茎变细,节间变长,叶片变小、变轻,品质稍有下降.在中低等肥力条件下,为兼顾产量、品质和效益,肥密配比以亩施纯氮10千克与亩植1333株的组合为佳.
In the experiment,the fertilization ratio of N P K was fixed as 1∶1∶2;three N levels(15,20,25 jin/mu)and three density levels(1111,1333,1666 plants/mu)were set up which were ranged by means of random blo-cking.The purpose was to approach to the effect of various fertilization—density combinations on the growth,yield and quality of flue—curedtobacco.The result showed that along with the rise of fertilization level,the leaves at various positions of the plant lengthened,broadened,hencethe yield and output value increased.The quality was the best at the midfertilization level.Along with the rise of density,the yield and outputvalue increased,but the main stems became thinner,internodes longer,leaves smaller and lighter,hence the quality decreased a little.Under thecondition of mid—low fertility,the combination of the fertilization amountand density ratio of 20jin of pure N/mu and 1333 plants/mu was optimumso as to give consideration to the yield,quality and efficiency.
出处
《江西农业大学学报》
CAS
CSCD
1990年第4期23-31,共9页
Acta Agriculturae Universitatis Jiangxiensis
关键词
烤烟
优质适产
施肥量
密度
Flue—cured tobacco
Fine quality and proper yield
Fertilization amount
Density
Optimum combination
