摘要
以鲢、鳙为主养鱼类的混养池塘中，在各种条件基本相同的情况下，设计了４种以氯化铵为氮源、１种以碳铵和尿素为氮源、１种以有机肥为肥源的追肥处理，旨在查明６种追肥处理对鲢、鳙生长的影响。试验结果表明：氯化铵能促进鲢、鳙快速生长；Ｎ与Ｐ＿２Ｏ＿５，的比为２：１时生长最佳。分析讨论了６种追肥处理池塘中鲢、鳙在不同养殖阶段的生长特点，并提出了进一步增产的措施。
Growth of the silver carp(Hypophthalmichthys molitrix)and bighead(Aristichthysnobilis) were studied in polyculture ponds with the two fishes as main cuIture species.Six fer-tilization regimes were employed among which four used ammonium chloride one usedammonium bicarbonate and urea,and one used organic manure as nitrogen source。The dai-ly absolute growth,daily growth rate, instantaneous growth rate, relative growth rate inlength and weight, and condition factor were detennined for different periods of the growthseason,The resuIts indicated that ammonium chloride was a pond fertilizer with good quali-ty and promoted the growth of the silver carp and bighead.Best growth was achieved whenthe ratio of N/ P_2O_5 in the fertilizer was about 2.Supplemental application of potassiumfertilizer did not improve the growth of the two fishes.
出处
《水生生物学报》
CAS
CSCD
北大核心
1994年第2期116-127,共12页
Acta Hydrobiologica Sinica
关键词
氯化铵
混养池塘
鲢
鳙
生长
Ammonium chloride,PolycuIture pond,Silver carp, Bighead Growth
