减施基肥及追施黄腐酸钾对羊角椒生长及产量的影响

Effects of Reducing Base Fertilizer and Topdressing Fulvic Acid Potassium on Growth and Yield of Alstonia Pepper

为探索减施基肥、追施黄腐酸钾对羊角椒减肥增效的应用效果,设置5个施肥处理:T_(1),常规施肥(CK);T_(2),基肥减施40%(常规施肥基础上);T_(3),基肥减施40%+追肥时配施黄腐酸钾(推荐用量的50%);T_(4),基肥减施40%+追肥时配施黄腐酸钾(推荐用量的100%);T5,基肥减施40%+追肥时配施黄腐酸钾(推荐用量的200%),开展不同施肥方式对田间羊角椒植株性状、鲜质量、干质量、花果特性和产量的影响研究。结果表明,基肥减施40%,会导致羊角椒产量、果实品质、鲜质量和干质量等质量不同程度下降。但随着黄腐酸钾量的增加,羊角椒产量、品质及植株形态逐渐提升,甚至超过常规施肥处理。且在常规施肥基础上基肥减施40%,配施黄腐酸钾24.75 kg/hm^(2),综合效益最高。

In order to explore the application effect of reducing base fertilizer and topdressing fulvic acid potassium on reducing fertilizer and increasing efficiency of alstonia pepper,5 fertilizer treatments were set up:T_(1),conventional fertilization(CK);T_(2),base fertilizer reduced by 40%(on the basis of conventional fertilization);T_(3),base fertilizer reduced by 40%+topdressing with fulvic acid potassium(50%of the recommended amount);T_(4),base fertilizer reduced by 40%+topdressing with fulvic acid potassium(100%of the recommended amount);T5,basal fertilizer reduced by 40%+topdressing potassium fulvic acid(200%of the recommended amount).The effects of different fertilizer treatments on plant traits,fresh weight,dry weight,flower and fruit characteristics and yield of alstonia pepper in the field were studied.The results showed that the yield,fruit quality,fresh and dry weight of alstonia pepper decreased by 40%reduction of base fertilizer.However,with the increase of the amount of fulvic acid potassium,the yield,quality and plant traits gradually increased,even exceeding the conventional fertilization treatment.On the basis of conventional fertilization,when the base fertilizer was reduced by 40%and fulvic acid potassium was 24.75 kg/hm2,the comprehensive benefit was the highest.