蔗叶过腹还田对甘蔗生长及土壤性状的影响

在N、P、K养分相等的情况下 ,探讨了蔗叶过腹(牛粪)还田、蔗叶过腹配施化肥 (N、P、K)、单施化肥 (N、P、K)3个处理对甘蔗生长和土壤性状的影响。结果表明 :蔗叶过腹还田可以提高甘蔗萌芽率和后期生长 ,但甘蔗糖份在3处理中最低 ;单施N、P、K化肥利于甘蔗的分蘖和前期生长 ,提高了成茎率 ;蔗叶过腹配施N、P、K化肥处理 ,甘蔗产量最高 ;分蘖初期、伸长期和成熟期的叶面积系数、 3叶叶绿素、 3叶比叶重在3种处理中差异不明显 ;3种处理均能提高土壤有机质含量和全氮含量 ,在一定程度上改善土壤通透状况 ,其中以蔗叶过腹还田处理效果最好

Effect of Sugarcane Growth and Soil Characteristics with Manuring of Pass Rumen Sugarcane Leaves(Cattle dung)

Under the same level of N,P2O5 and K2O,the influences of different fertilizers on sugarcane growth and soil characteristics were comparitivelly studied, the results shown that the manuring of pass-rumen sugarcane leaves were useful of increasing the percent of sprouting and improving the earlier growth of sugarcane,but the sugar content of sugarcane was the lowest than the treatment of inorganic fertilizer(mixed N,P2O5,K2O)alone.Inorganic fertilizer were valid for tilling,earlier growth and effective stalk of sugarcane. The highest output had been got by manuring of pass-rumen sugarcane leaves plus N, P2O5 and K2O. There were little differences among the treatments for leaf area, chloroplast of 3 leaf and unit area weight of leaf (g/cm3).All treatments could ncrease organic content and all nitrogen of the soil,improve the soil aeration, especially for pass-rumen sugarcane leaves.