Effects of Two Microbial Agents on Yield, Quality and Rhizosphere Environment of Autumn Cucumber Cultured in Organic Substrate
WANG JunZheng,, ZHANG Qi, GAO ZiXing, MA XueQiang, QU Feng, HU XiaoHui,College of Horticulture, Northwest A&F University/Key Laboratory of Protected Horticultural Engineering in Northwest, Ministry of Agriculture and Rural Affairs, Yangling 712100, Shaanxi
Abstract 【Objective】A bag-cultivated experiment was conducted to test the potential of two microbial agents (Bacillus methylotrophicus and Lactobacillus plantarum) on the yield, quality and rhizosphere environment of autumn cucumber using organic substrate as a growth medium. The results of the experiment were helpful to develop the new functional type of microbial agents to guide the high quality and high efficiency production of cucumber. 【Method】Cucumber cultivar ‘Bonai 526’ was sown in a bag of organic substrate. There were a total of six treatments, including CK1 (Irrigation of water and non-application of microbial agents), NT1 (Irrigation of water and application of Bacillus methylotrophicusagents), NT2 (Irrigation of water and application of Lactobacillus plantarumagents), CK2 (Irrigation of nutrient solution and non-application of microbial agents), FT1 (Irrigation of nutrient solution and application ofBacillus methylotrophicusagents), and FT2 (Irrigation of nutrient solution and application of Lactobacillus plantarumagents). The microbial agents (Bacillus methylotrophicus as ‘VL-10’ and Lactobacillus plantarum as ‘LYS-1’) were added to the cucumber rhizosphere at the rate of 2.5×1010 CFU/plant on 20th, 35th and 50th day. 【Result】Compared with CK1 and CK2 treatment,Bacillus methylotrophicus inoculation in both of the nutrient levels increased the dry matter content by 13.51% and 15.02%, and yield by 20.83% and 15.63%, respectively; Lactobacillus plantarum increased the dry matter content by 11.43% and 8.42%, and the yield by 17.42% and 14.96%, respectively. The fruit quality under FT1 treatment was the best; compared with CK2 treatment, its content of free amino acid, organic acid, soluble sugar, reducing sugar and vitamin C were significantly increased by 10.61%, 28.93%, 22.92% and 39.88%, respectively,, followed by FT2 treatment. The accumulation of phosphorus and potassium were significantly higher under both NT1 (7.43% and 10.60%) and NT2 (13.50% and 8.19%) compared with CK1 treatment (P<0.05). Compared with CK2 treatment, the accumulation of nitrogen, and potassium were significantly higher under FT2 (24.18% and 26.25%), while the phosphorus concentration in plants were significantly higher under FT1 (17.16%). Compared with CK2 treatment, the nitrogen, phosphorus and potassium fertilizer utilization rates under FT1 treatment were significantly increased by 82.85%, 483.90% and 75.60% (P<0.05), respectively, which under FT2 treatment was significantly increased by 102.42%, 367.98% and 120.46%, respectively (P<0.05). Compared with CK1 treatment, the treatments NT1 and NT2 improved soil enzymatic activities of sucrase (100.66% and 116.60%), catalase (3.39% and 4.10%) and alkaline phosphatase (6.99% and 95.08%) at the full fruiting stage, among which catalase and alkaline phosphatase activities were still higher at the end of the experiment. Compared with CK2 treatment, the FT1 treatment significantly improved soil enzymatic activities of urease (3.75% and 13.13%), sucrase (68.62% and 31.68%) and alkaline phosphatase (18.00% and 109.64%) in the full fruiting period and the seedling pulling period, while the urease (4.95% and 6.12 %), sucrase (24.93% and 63.35%) and alkaline phosphatase activity (26.99% and 84.01%) under FT2 treatment (P<0.05). The effect ofBacillus methylotrophicagent on the urease and alkaline phosphatase activities were better than that ofLactobacillus plantarumagent. Moreover, the substrate incubated with Bacillus methylotrophic showed significantly higher available nitrogen content (63.33% and 72.70%) (P<0.05) compared with their respective controls at the full fruiting stage, and the increase was 25.48% and 86.46% at the end of the experiment, respectively. 【Conclusion】In conclusion, adding 7.5×1010CFU/plant of Bacillus methylotrophic to the substrate could improve the rhizosphere environment of cucumber and promote the absorption, assimilation and accumulation of essential elements by the plant. Moreover, it could effectively improve the yield and fruit quality of cucumber. Keywords:microbial agents;cucumber;substrate cultivation;yield;fruit quality;rhizosphere environment
PDF (528KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 王君正, 张琪, 高子星, 马雪强, 屈锋, 胡晓辉. 两种微生物菌剂对有机基质袋培秋黄瓜产量、品质及根际环境的影响[J]. 中国农业科学, 2021, 54(14): 3077-3087 doi:10.3864/j.issn.0578-1752.2021.14.013 WANG JunZheng, ZHANG Qi, GAO ZiXing, MA XueQiang, QU Feng, HU XiaoHui. Effects of Two Microbial Agents on Yield, Quality and Rhizosphere Environment of Autumn Cucumber Cultured in Organic Substrate[J]. Scientia Acricultura Sinica, 2021, 54(14): 3077-3087 doi:10.3864/j.issn.0578-1752.2021.14.013
**表示极显著影响(P<0.01),NS表示无显著影响。不同小写字母表示差异显著(P<0.05),字母‘M’和‘F’分别代表菌剂和营养液。下同 Fig. 1Effects of two microbial agents on cucumber yield cultured in organic substrate
** indicate extremely significant effect, NS indicate no significant effect. Different lowercase letters indicate significant difference (P<0.05), and the letters ‘M’ and ‘F’ represented microbial agents and nutrient solution, respectively. The same as below
Table 1 表1 表1两种微生物菌剂对有机基质培黄瓜品质的影响 Table 1Effects of two microbial agents on quality of cucumber cultured in organic substrate
处理 Treatment
游离氨基酸 Free amino acids (μg·g-1)
可溶性蛋白 Soluble protein (μg·g-1)
有机酸 Organic acid (%)
可溶性糖 Soluble sugar (%)
还原糖 Reducing sugar (%)
维生素C Vitamin C (μg·g-1)
硝酸盐 Nitrate content (μg·g-1)
CK1
609.60±6.13f
296.30±5.86c
1.22±0.013d
8.17±0.17d
1.12±0.004c
55.14±0.58d
273.07±4.72d
NT1
700.93±9.03d
349.11±1.08b
1.29±0.017c
9.26±0.34c
1.43±0.068b
55.14±1.01d
338.89±5.16b
NT2
648.57±6.71e
238.72±4.47d
1.42±0.009b
9.12±0.17c
1.37±0.048b
63.88±1.21cd
309.30±5.16c
CK2
745.72±9.07c
373.36±2.81a
1.44±0.013b
9.54±0.23c
1.44±0.080b
73.29±0.58bc
415.58±12.55a
FT1
824.84±7.63a
387.21±4.22a
1.53±0.004a
12.30±0.38a
1.77±0.078a
102.52±5.61a
359.42±5.23b
FT2
800.41±6.48b
302.36±8.98c
1.50±0.015a
10.47±0.41b
1.45±0.033b
79.33±4.62b
360.02±10.16b
方差分析 ANOVA
营养液 F
489.516**
197.361**
318.604**
61.696**
26.000**
0.244
125.693**
菌剂 M
63.083**
182.428**
33.353**
4.597*
0.153
61.526**
1.797
营养液×菌剂 F×M
1.696
7.256**
44.611**
21.232**
18.003**
25.139**
33.304**
同列数据后不同小写字母表示差异显著(P<0.05),*和**分别表示显著差异(P<0.05)和极显著差异(P<0.01)。下同 Values followed by different letters in the same column show significant difference (P<0.05). *, ** significant difference (P<0.05) and extremely significant difference (P<0.01), respectively. The same as below
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