甘蔗施用复硝钾增产增糖机理探讨  

STUDIES ON THE MECHANISM OF INCREASING YIELD ANDSUCROSE CONTENT OF CANE BY THE APPLICATIONOF 2% CNKAA IN SUGARCANE(Saccharum officinarum L.)

作　　者：甘晓伟[1] 苏广达 李玉潜[1] 

机构地区：[1]华南农业大学农学系

出　　处：《华南农业大学学报》1994年第2期112-117,共6页Journal of South China Agricultural University

摘　　要：采用盆栽试验，选粤糖７１／２１０、粤糖６３／２３７两个甘蔗品种作试验对象，用０．０００４％、０．０００６％复硝钾分别对甘庶进行浸种育苗、移栽后淋根或喷施叶片等处理，研究甘蔗施用复硝钾增产增糖机理。研究结果表明，复硝钾能促进甘蔗根系吸收和运转能力；能提高甘蔗叶片光合作用强度；能促进甘蔗体内多种生理生化过程，协调体内各种代谢，促进甘蔗生长和糖分积累。最终表现为提高甘蔗单位面积内的有效茎数，增加单茎重，提高产量；提高蔗茎蔗糖分，降低蔗汁还原糖量，改善原料蔗品质。The mechanism of increasing yield and sucrose content of cane by applicationof the Nitropotassium Aquesous Agent(2 % CNKAA) in Sugarcane was studied bymeans of pot experiments with two sugarcane varities,Yutang 71/210 and Yutang63/237.The method of the application of CNKAA included seed soaking,rootapplication and foliage spray with0.000 4% or 0.000 6% solution.The experimentalresults sho wed that CNKAA could promote the germination rate of seed cane,impro ve the capacity of root absorption and root transportation,and increasethe photosythesis rate of leaves.It could coordinate the proeess of internalphysiology and chemical reaction,regulate the internal metabolism,and promote thecane growth and sucrose accumulation.The final results indicated that CNKAA couldincrease the numbers of cane stalk per area and the weight per cane stalkSo,It couldincrease the cane yield and the sucrose content of cane,decrease the reducing sucrosecontent of juiee and improve the juice quality.

关 键 词：甘蔗 复硝钾 增产 增糖机理 施肥 

分 类 号：S566.106.2[农业科学—作物学]