Effects of Different Amino Acid Fertilizers on Growth,Development and Quality of Mini Watermelon under Substrate Cultivation

In order to select suitable mini watermelon varieties for spring greenhouse cultivation under substrate cultivation,the field character,yield character,quality character and trade trait of six new mini watermelon varieties with red flesh were compared in the test.The results showed that mini watermelon applied with alanine and arginine had obvious advantages in quality character,yield character and trade trait.The yields reached 3876.8 and 44120.20 kg/667m2;the weight of single melon reached 1.98 and 2.10 kg;and the central sugar content reached 13.34%and 13.25%,respectively.Meantime,mini watermelon was juicy,sweet,tasty and refreshing,and was suitable for planting under substrate cultivation.

Effects of Amino Acid Foliar Fertilizer on the Yield and Quality of Different Vegetables

In order to explore the effects of amino acid foliar fertilizer on the yield and quality of different vegetables, we tested the spraying of an amino acid foliar fertilizer(Wanfeng 2) onto the leaves of cucumbers, eggplants and water spinach through contrast experiment in a greenhouse. The results showed that the yield increments of amino acid foliar fertilizer treatments in cucumbers, eggplants and water spinach were 11.57%, 4.43% and 12.41% respectively, and the output-input ratios were 64.52 ∶ 1, 53.31 ∶ 1 and 55.14 ∶ 1 respectively. Amino acid foliar fertilizer can influence the quality of greenhouse vegetables. The total sugar content of the cucumbers, eggplants, and water spinach significantly increased by 12.00%, 22.30%and 12.10% respectively. The vitamin C content increased by 4.76%, 24.80%, and10.90% respectively compared with the control. In conclusion, the spraying of amino acid foliar fertilizer could improve the yield and the nutritive quality of vegetables such as cucumbers, eggplants and water spinach.

Effect of Amino Acid Fertilizer on Flue-cured Tobacco Fertilizer Reducing and Efficiency Increasing

[Objective] The aim was to explore the effect of amino acid fertilizer on the growth, development and quality of flue-cured tobacco. [Method] With Yunyan 87 as tested flue-cured tobacco varieties, three treatments （chemical fertilizer （control）, chemical fertilizer＋solid amino acid, chemical fertilizer＋liquid amino acid） were set up to study the effects of amino acid fertilizer on flue-cured tobacco fertilizer reducing and efficiency increasing by means of contrast in the same field. [Result] The flue-cured tobacco applied solid amino acid fertilizer had the best performances of overall agronomic traits and the highest yield, while liquid amino acid fertilizer was conductive to the top leaf opening, making the raw tobacco appearance best, and could increase the proportion of middle and high quality tobacco, gaining good economic benefits. The flue-cured tobacco treated by liquid amino acid fertilizer had the optimal ratio of total sugar to nicotine and disaccharide differences in tobacco leaves, and the best coordination of chemical composition. Compared with the contrel, tobacco treated by amino acid fertilizer had less irritating and more comfortable taste, and the tobacco treated by liquid amino acid had light miscellaneous gas, and the best overall performance of sensory quality. [Conclusion] Chemical fertilizer＋liquid amino acids is conductive to promote the growth and development of flue-cured tobacco and improve the quality of tobacco leaves.

Effects of Amino Acid Selenium Foliar Fertilizer on Selenium Content and Quality of Mango

[Objectives]This study was conducted to explore the treatment methods of amino acid selenium fertilizer suitable for increasing the selenium content of mangoes and improving the quality of mangoes,so as to provide a theoretical basis for the production of selenium-enriched mangoes.[Methods]With Tainong mango as a test material,the amino acid selenium foliar fertilizer was applied by eight treatment methods to investigate the changes of selenium,soluble solid,vitamin C,and titratable acid contents in mango flesh and peel.[Results]Spraying amino acid selenium foliar fertilizer increased the selenium content of mango flesh.The selenium contents of the treatment groups T2,T3,T4 and T5 reached the selenium-enriched standard,and the T2 treatment group had the highest selenium content(0.020 mg/kg).The selenium contents in the peel of all treatment groups were greater than the corresponding selenium content in the flesh.Except for T1,the vitamin C contents of other treatment groups sprayed with amino acid selenium fertilizer increased compared with the control,and that of the T2 treatment group increased significantly(P<0.05).Compared with the control,the soluble solids of the treatment groups sprayed with amino acid selenium fertilizer once also increased.The treatment method of spraying amino acid selenium fertilizer with a dosage of 12000 ml/hm2 once(T2)achieved the best effect of increasing the selenium content and improving the quality of mangoes.[Conclusions]This study provides a scientific basis for increasing the selenium content of mangoes and improving the current situation of insufficient selenium intake.

Effects of the fertilizer and water management on amino acids and volatile components in Cabernet Sauvignon grapes and wines

The amino acids and the volatile substances in grapes and wines play important roles in their quality,and the concentrations of these substances can be changed by how a vineyard is managed,e.g.,irrigation and fertigation regimes.This study aimed to evaluate the effect of fertilizer and water management on the distribution of amino acids,the volatile component profiles,and the sensory characteristics of Cabernet Sauvignon grapes and wines.The results showed that the amino acid concentration in grape berries was the highest under the 100%local fertilizer rate(HF)and 100%water irrigation quota(HW)treatment,and the volatile component concentration in wine was the highest under HF and 80%water irrigation quota(MW)treatment.The effect of irrigation on the amino acid content in grapes was greater than that of fertigation.The synergistic effect of fertilizer and water on arginine,serine,and glutamine in grape berries was significant.The interactive effect of fertigation and irrigation on the volatile substance in grapes was greater than that of fertigation and irrigation alone.The influence of irrigation on volatile substances in wines was greater than that of fertigation.In addition,there was also a correlation between the concentrations of multiple amino acids in grapes and volatile components in wines.Principal component analysis showed that the wine from the HFMW treatment had the best quality among all treatments.

Amino Acid Contents of Indigofera arrecta Leaves after Application of Foliar Fertilizer

The experiment aimed to investigate foliar fertilizer application effects on amino acid content of Indigofera leaves. lndigofera arrecta was planted in plots during both rainy and dry seasons. Foliar fertilizer concentrations consisted of 10 g, 20 g, 30 g, 40 g and 50 g, which solved in 10 L solvent were appIied on sixteen individual plants per plot, The fertilizer was applied 4 times during vegetative growing period. Block randomized design with 3 replications was used in this experiment. The foliar fertilizer containing 20%-22% N （N total）, 15%-16% P （P205）, 15%-16% K, 1.5% Mg, 1% Ca, 1% Fe, 1.42% Zn, 0.53% Cu, 0.88% Mo, 0.53% B and growth hormone 0.025% indole acetic acid （1AA） and giberelic acid （GA） was applied. Samples of each plot were composited leaves from 3 harvest times. The result showed that the foliar fertilizer did not affect aspartic acid, seriue, histidine, threonine, tyrosine, valine, methionine, iso-leusine and leusine content oflndigofera leave. Foliar fertilizer application up to 50 g/10 L resulted in higher （P 〈 0.05） glutamate acid, glysine, arginine, alanine, proline and lysine than those of other fertilizer levels.

信阳毛尖茶园施用氨基酸叶面肥的效果初探

为探讨不同浓度的氨基酸叶面肥对信阳有机茶园的产量及品质的影响,在新县香山湖有机茶园开展有机氨基酸叶面肥的喷施试验。分别设置0.300、0.150、0.075 g/L 3个处理,同时以清水作为对照,每隔1周喷施1次,共3次;于2021年3月30日、4月14日、6月17日采摘新梢,分别测定品质成分、芽叶性状指标与产量,并评价其经济效益。结果表明,喷施有机氨基酸叶面肥能提高信阳毛尖春茶茶多酚与游离氨基酸含量,显著降低春茶的酚氨比;酚氨比以为0.150 g/L处理最低,同时游离氨基酸含量最高,比对照提升了5.05%~5.45%,其中以4月14日采摘的春茶游离氨基酸提升效果最为显著。从芽叶性状来看,0.075 g/L和0.150 g/L处理均能使百芽质量略减,芽密度显著增加,使茶叶更符合高品质春茶的芽叶形状。从经济效益的角度来看,0.150 g/L处理,经济效益增加最多,较对照增加了55.60%。综合茶叶农学和经济效益,0.15 g/L的有机氨基酸叶面肥最有利于信阳毛尖春茶增产增收,但夏茶喷施有机氨基酸叶面肥不会取得显著效果。

氨基酸水溶肥对枇杷幼苗生长及养分吸收的影响

【目的】探讨氨基酸水溶肥对枇杷生长及养分吸收的影响。【方法】以1 a生‘大五星’幼苗(Eriobotrya japonica L.)为试材,喷施稀释0(对照,蒸馏水)、50、100、150和200倍的氨基酸水溶肥,测定相关生理指标。【结果】氨基酸水溶肥增加了枇杷幼苗的生物量,且100倍时枇杷幼苗根系和地上部生物量最大,分别较对照增加了21.45%和44.41%。氨基酸水溶肥提高了枇杷幼苗全氮、全磷和全钾含量,且100倍时枇杷幼苗地上部全氮和全磷含量最高,分别较对照提高了70.01%和32.49%;150倍时地上部全钾含量最高,较对照提高了36.44%。相关分析和灰色关联度分析表明,枇杷幼苗全氮、全磷和全钾含量与生物量密切相关,表明氨基酸水溶肥促进枇杷幼苗吸收养分进而促进幼苗生长。【结论】氨基酸水溶肥可有效促进枇杷幼苗的生长和养分吸收,并以稀释100倍时效果最佳。

氨基酸液态肥对“蜜脆”苹果生长发育的影响

为明确氨基酸液态肥对苹果树体生长发育的影响,以2年生“蜜脆”苹果为试材,比较了不同施肥量处理对苹果幼树生长发育的影响。结果表明,适量氨基酸液态肥处理能促进“蜜脆”苹果幼树生长,其中,A5处理1年生枝长度最大,较尿素处理增加了10.42%;A4处理显著增加了“蜜脆”幼树总枝量和短枝数量,较尿素处理分别增加18.34%和23.68%。A5处理的“蜜脆”幼树叶片叶面积、叶绿素、全氮、可溶性糖和可溶性蛋白含量显著高于尿素处理,分别增加了10.57%、17.73%、10.85%、17.74%和28.08%。A4和A5处理显著增加了“蜜脆”苹果休眠期顶芽与腋芽内的可溶性糖含量,较尿素处理分别增加了4.52%、15.38%和9.03%、23.78%。综合研究结果,氨基酸液态肥可促进“蜜脆”苹果幼树生长发育,适宜施肥量为每株树1.05~1.35 L。

氨基酸肥料和鼠李糖脂配施对番茄耐盐性和产量的影响

以中度盐渍土为试验土壤,以普罗旺斯番茄品种为试验材料,探索了不同配比氨基酸肥料和鼠李糖脂对番茄生长发育、耐盐性和产量的影响。结果表明:在中度盐渍化土壤常规施肥(氮磷钾复合肥N∶P_(2)O_(5)∶K_(2)O=20∶10∶15基施,高钾复合肥N∶P_(2)O_(5)∶K_(2)O=10∶5∶25追施)条件下,氨基酸肥料单施(灌施氨基酸肥料300 L·hm^(-2))显著提高了番茄脯氨酸含量,较常规施肥提高13.9%。氨基酸肥料配施24 L·hm^(-2)鼠李糖脂处理可进一步提高番茄耐盐性和降低细胞氧化损伤,与氨基酸肥料单施相比,该处理下过氧化物酶活性和脯氨酸含量分别显著增加31.4%和20.6%,叶片超氧阴离子(O_(2)^(-))产生速率、丙二醛含量和Na^(+)/K^(+)分别显著降低23.8%、26.6%和43.0%。同时,氨基酸肥料配施24 L·hm^(-2)鼠李糖脂处理的番茄产量、可溶性糖和Vc含量最高,较氨基酸肥料单施处理分别显著增加38.5%、14.2%和18.2%。总体来看,以300 L·hm^(-2)氨基酸肥料配施24 L·hm^(-2)鼠李糖脂效果最佳,可有效缓解盐胁迫对细胞膜的损伤,提高叶片渗透调节能力和光合作用,增强番茄的耐盐性,实现产量和品质协同提升。

氨基酸肥和腐植酸肥配施尿素对土壤有效氮及辣椒产量的影响

以“美国红”辣椒为试材,采用大田试验方法,在相同供氮水平下,共设置不施肥(CK)、常规施肥(F)、40%氨基酸肥N+60%尿素N(FA)、40%腐植酸肥N+60%尿素N(FH)、20%氨基酸肥N+20%腐植酸肥N+60%尿素N(FAH)5个处理,研究了氨基酸肥和腐植酸肥配施尿素对辣椒土壤有效氮、微生物量氮含量、相关酶活性及辣椒产量的影响,以期为河西灌区辣椒土壤的培肥模式提供参考依据。结果表明:各处理根际土壤氮供应指标、生物学特性指标含量均为各土层中最高,氨基酸肥、腐植酸肥配施尿素对比单施尿素对土壤全氮提升效果并不明显,但对土壤有效氮、土壤微生物量氮、土壤脲酶活性提升效果显著,氨基酸肥、腐植酸肥配施尿素能够有效提高辣椒产量,改善辣椒干物质分配比例。各处理以FA处理提升效果最为明显。根际土中,对比单施尿素土壤铵态氮、硝态氮含量分别提升了12.69%、27.58%;0~20 cm土层中,对比单施尿素土壤铵态氮、硝态氮含量分别提升了14.24%、41.75%;20~40 cm土层中,对比单施尿素土壤铵态氮、硝态氮含量分别提升了21.47%、58.85%。F、FA、FH、FAH处理每667 m^(2)产量对比CK增产率分别为10.72%、15.19%、14.64%、12.92%。相关性分析表明各指标间呈极显著正相关。由此可见,氨基酸、腐植酸肥配施尿素能够有效提高土壤有效氮含量及辣椒产量,且各处理以40%氨基酸肥+60%尿素提升潜力最大。

外源氨基酸对草莓生长及养分吸收的影响

以“红颜”草莓为试材,采用水肥一体化滴灌施肥的方法,研究了在农民常规管理(对照)的基础上,减少50%化肥施用量(优化施肥)并添加氨基酸水溶肥(氨基酸处理)对草莓植株生长、产量、品质及矿质养分吸收的影响,以期为氨基酸水溶肥在草莓生产中应用提供参考依据。结果表明:农民常规管理的草莓植株的株高、茎粗、冠幅、SPAD值和生物量均最高,与优化施肥相比,氨基酸处理以上指标分别增加1.61%、1.59%、4.37%、2.71%和6.84%。与对照相比,减施化肥产量均降低;但与优化施肥相比,增施氨基酸水溶肥产量显著提高15.95%。与对照相比,氨基酸处理N、P2O5、K2O化肥偏生产力分别显著增加41.52%、75.18%和44.65%。氨基酸处理果实纵径(4.67 cm)、单果质量(21.28 g)、还原糖含量(8.79 g·(100g)^(-1))、可溶性固形物含量(11.47%)和维生素C含量(64.38 mg·(100g)^(-1))均最高。与对照相比,优化施肥和氨基酸处理的果实总糖分别增加8.83%和22.28%,有机酸分别升高42.50%和40.00%,糖酸比分别下降21.12%和12.08%。氨基酸处理的草莓植株养分吸收通量N(2419.39 mg·株^(-1)·d^(-1))、P(127.37 mg·株^(-1)·d^(-1)、K3191.98 mg·株^(-1)·d^(-1))均最大,与优化施肥相比,氨基酸处理的N、P、K吸收通量分别增加1.90%、9.56%和21.37%。综上所述,在农民常规管理施肥的基础上,大量减少化肥的施用量会降低草莓植株的营养生长、果实产量和品质,但在化肥减施基础上添加氨基酸水溶肥,能够提高草莓果实品质,并在一定程度上恢复产量,还可以促进草莓植株的生长势平衡及对矿质养分的吸收量。

叶面喷施氨基酸和钾肥对安吉白茶产量与品质的影响

早春冷害是影响春茶生产的主要危害因子之一,通过叶面施肥提高茶树的耐寒性和早期鲜叶产量具有广泛的实际意义。本文通过田间试验研究了叶面喷施氨基酸(AA1、AA2)、钾元素(K1、K2)和两者的混合液(AA-K1、AA-K2)对安吉白茶产量和品质的影响。结果表明,与喷施清水(CK处理)相比,叶面喷施氨基酸与钾元素混合液(AA-K1和AA-K2处理)显著提高了安吉白茶早期鲜叶产量和总产量(P<0.05)。对叶绿体超微结构观察发现,AA-K1处理的叶片在复绿期淀粉粒明显增大。K1、K2处理能明显增加安吉白茶白化前期和复绿期叶片总叶绿素含量,K2处理能明显增加安吉白茶白化前期、白化期、复绿期叶片类胡萝卜素含量。K2、AA-K1处理的可溶性糖含量差异不显著,但均显著高于其他处理(P<0.05)。与CK处理相比,氨基酸与钾元素混合液(AA-K1和AA-K2处理)能提高幼叶氨基酸总量,儿茶素含量也显著提高,但咖啡碱含量差异不显著。综上所述,叶面喷施氨基酸与钾元素混合液(AA-K1和AA-K2处理)提高了安吉白茶早期鲜叶产量且改善幼叶品质的效果明显,对含氨基酸大量元素水溶肥料的研制具有实际参考价值。

氨基酸肥与尿素配施对辣椒土壤有机氮组分与酶活性的影响

以制干辣椒为试材,采用田间氨基酸肥与尿素配施试验,在相同施氮量下设置7个施肥处理,分别为不施肥(CK)、单施尿素(M0)、20%氨基酸肥+80%尿素(M20)、40%氨基酸肥+60%尿素(M40)、60%氨基酸肥+40%尿素(M60)、80%氨基酸肥+20%尿素(M80)、100%氨基酸肥(M100),测定辣椒收获期0~20、20~40 cm土层中有机氮组分的含量,以及土壤蛋白酶、脲酶、硝酸还原酶和亚硝酸还原酶活性,研究氨基酸肥与尿素配施对土壤有机氮组分及土壤氮素相关酶活性的影响,并分析有机氮组分与土壤酶活性的相关性,以期为辣椒生产中合理施用氨基酸肥提供参考依据。结果表明:配施氨基酸肥能显著提高土壤有机氮组分含量,其中酸解铵态氮>氨基酸态氮>酸解未知态氮>未酸解氮>氨基糖态氮。当施用氨基酸肥比例增加时,同一土层的总氮、氨基酸态氮、铵态氮、未知态氮含量以及脲酶、蛋白酶和硝酸还原酶的活性均为先上升后下降。在有机氮组分中,除氨基糖态氮和未酸解氮外,其他处理在M20时达最大;土壤酶活性中,除蛋白酶M20处理最大外,其他处理在M60达最大。相关性分析表眀,酸解总氮与全氮含量呈显著正相关,而酸解总氮与未酸解氮含量呈显著负相关,氨基糖态氮、酸解未知态氮和全氮含量与4种酶活性均呈显著正相关。综上所述,M20处理土壤供氮潜力最高,能够有效提高辣椒氮肥利用效率。

植物源氨基酸水溶肥对杨梅果实品质及营养生长的影响

研究植物源氨基酸对杨梅果实品质的影响,为丽维双保在杨梅上的应用提供理论依据。以东魁杨梅为研究对象,选择植物源氨基酸水溶肥(L,丽维双保)为试验材料,动物源氨基酸(Y)作为参比肥料,分别以1 000倍和500倍两个稀释浓度在杨梅的萌芽期、幼果期、硬核期喷施3次。试验结果表明,氨基酸肥料能够提高杨梅产量,增加果实可溶性固形物(TSS)、蔗糖等的含量,其中丽维双保低浓度L10和参比肥料高浓度Y5增幅明显,蔗糖含量分别增加29.2%和31.2%。氨基酸肥料促进植物对各种营养元素的吸收,丽维双保处理提高了叶片中氮、磷、钾、钙、镁、锰、锌、铜等8种元素含量,并增加叶面积,相较于参比肥料,低浓度下表现更为明显,说明丽维双保表现更为高效。由此初步判断氨基酸水溶肥料叶面喷施均能够增加杨梅产量,改善品质,提高作物的营养生长,提高收益。

水肥一体化栽培下不同氨基酸肥对百合生长的影响

本试验在水稻土栽培条件下,选用“西伯利亚”一代种球为试材,以传统施肥栽培为对照,采用田间试验的方法,研究在水肥一体化栽培条件下,不同氨基酸肥对百合生长的影响。结果表明,与传统施肥栽培(CK)相比,水肥一体化并增施氨基酸原粉能显著提高百合的株高、茎粗、叶片厚度、花苞长度和花苞宽度,并降低日灼发生率、虫害发生率、病害发生率和植株死亡率,减少病虫害防治次数。综合考虑成本效益,建议百合水肥一体化栽培时,配合使用1∶1000的氨基酸原粉,以促进百合生长,提高其抗病虫害能力。

苯甲·嘧菌酯与水溶肥料混合使用全程防治杨梅白腐病为主的综合病害效果示范

[目的]筛选出更好的药剂组合供杨梅生产选择使用。[方法]选择32.5%苯甲·嘧菌酯SC与11%含氨基酸水溶肥料混合使用进行以杨梅白腐病为主的综合病害全程防治效果示范。[结果]该组合对杨梅白腐病为主的综合病害有较好的预防与控制作用,在杨梅谢花后、幼果-硬核期和转色期连续用药3次后,对杨梅白腐病的防效达90.61%,极显著优于农户自防区,同时对杨梅褐斑病、炭疽病等其他病害的综合效果也比较理想,且安全性好。[结论]该研究结果为进一步提高杨梅产量和品质、保证食用安全、促进杨梅产业健康可持续发展奠定了科学基础。

无人机追施氨基酸水溶肥对南方中稻产量及收益的影响

为筛选适用于无人机平台的水稻追肥种类,在江西省彭泽县以清水、液体尿素和氨基酸水溶肥进行无人机追肥试验,考察3个处理对水稻叶片SPAD值、产量及收益的影响。结果表明:各处理水稻叶片的SPAD值均随着时间的增加呈现出先升高后降低的趋势,且追施液体尿素和氨基酸水溶肥的SPAD值均高于追施清水处理;与追施清水处理相比,追施液体尿素和氨基酸水溶肥的水稻产量分别增加了2.1%~5.2%和7.0%~8.6%,且主要是通过提高穗数和结实率来实现水稻增产;追施氨基酸水溶肥处理的水稻产量比追施液体尿素处理高3.3%~4.8%;追施氨基酸水溶肥的利润显著高于追施清水和液体尿素,而后两者的利润无显著差异。因此,南方中稻区可采用无人机追施氨基酸水溶肥以实现水稻增产增收。

不同施肥模式下的土壤-山药系统重金属含量特征

为探索不同施肥模式对“安顺山药”及其立地土壤重金属的影响特征,设计5个不同的施肥处理进行田间试验。以菌渣、植物源中药草等为原料,加入磷石膏、褐煤灰等矿物质,并利用活性氨基酸发酵法制成的菌渣发酵肥和活性氨基酸功能性药肥进行单施或化肥配施处理;对不同生长期土壤及植株中重金属的含量、生物富集特征和污染风险等级进行分析,并通过主成分分析评价不同施肥措施对山药及土壤重金属含量的影响程度。结果表明:(1)不同施肥处理均明显增加了块茎膨胀期土壤重金属含量,但到收获期Pb、Cu、Ni比种植前期有所下降,As、Cr显著增加;重金属综合污染程度为块茎膨胀期>种植前>收获期,Cd是主要污染物。(2)收获期山药块茎中Cd、Cu和Ni比膨大期明显下降,但As显著增加。(3)膨大期对重金属的富集能力高于收获期,但除未施肥对照(CK)和70%功能性药肥+30%复合肥处理(GYF)的块茎膨胀期山药Cr分别超标0.02和0.14倍外,其余处理在各时期均未超标;相比较于对照,不同施肥处理不同程度地降低了重金属在山药中的富集,其中菌渣发酵肥(JZ)处理和70%菌渣发酵肥+30%复合肥(JZF)处理最显著。综上,菌渣发酵肥与化肥配施对土壤重金属影响不大,功能性药肥和化肥配施对重金属影响较明显,单施功能性药肥和菌渣发酵肥能一定程度缓解土壤重金属污染和降低山药块茎中重金属的富集。

“海之星”有机营养型氨基酸水溶肥对郁金香观赏期延长的研究

郁金香(Tulipa L.)花色丰富,耐低温,常用于早春的花境及花海打造,当前主要通过改善土壤及温度条件来调控花期。针对郁金香开花所需要的有效积温、有效光照、最佳激素配比及其与其他影响因子的交互效应,尤其是对影响郁金香花芽分化及花器官发育的基础研究很少。基于此,通过试验规律地喷施1000倍“海之星”有机营养型氨基酸水溶肥能够有效延长郁金香的观赏期7~9 d,同时能不同程度地提前郁金香观赏期,提升郁金香花期观赏状态,为提前和延长其他花卉观赏期提供参考。