Demir Halil, Saka Andaç Kutay, Uçan Ufuk, Akgün İsmail Hakkı, Yalçı H Kayhan
Agricultural Faculty, Department of Horticulture, Akdeniz University, Antalya, Turkey.
Agricultural Faculty, Department of Horticulture, Ordu University, Ordu, Turkey.
BMC Plant Biol. 2024 Dec 19;24(1):1189. doi: 10.1186/s12870-024-05980-y.
In today's conditions, it is not possible to eliminate chemical inputs without reducing food production. Therefore, integrated methods that reduce the negative effects of chemical inputs are needed. One of the alternatives is the use of beneficial bacteria, which can both improve the yield and quality of vegetable crops and reduce the use of chemical fertilisers. This research was carried out to test the effects of a microbial fertiliser combined with inorganic fertiliser on the growth, biochemical properties and yield of lettuce and whether the use of chemical fertilisers could be reduced. Caipira curly lettuce variety was used as plant material. The microbial fertilizer used contains 7 different microorganisms and 2 different yeasts. The experiment consisted of eight treatments: Control (T), 100% Chemical Fertilisation (T), 50% Chemical Fertilisation + Microbial Fertilisation (T), 75% Chemical Fertilisation + Microbial Fertilization (T), 100% Chemical Fertilisation + Microbial Fertilisation (T), Microbial Fertilisation Alone (T), 50% Chemical Fertilisation + Microbial Fertilisation + Foliar Microbial Fertilisation (T), 75% Chemical Fertilisation + Microbial Fertilisation + Foliar Microbial Fertilisation (T).
The results of the research were statistically evaluated using analysis of variance at a significance level of p < 0.05, and the means were compared using the LSD test. It was observed that the microbial fertiliser did not adversely effect on the growth characteristics of lettuce and even had an ameliorative effect. The highest root dry weights were obtained in the T, T, T and T treatments. T treatment had 7.8% and 5.5% more dry weight than T and T respectively. Biochemical properties were significantly affected by treatments and it was significant that T and T had similar results. Because chemical fertilizer dose was reduced by 50% in the T treatment. The chemical fertiliser dose was reduced by 50% in the T treatment. Microbial fertiliser treatments had no negative effect on lettuce colour formation and even greener lettuces were harvested from T, T, T and T treatments. The highest total yield was obtained from T (30638.89 kg ha) and T (30518.52 kg ha). In other words, when the recommended dose of chemical fertiliser was reduced by 25%, higher yields were obtained. The yields in T and T were 6.71% and 6.29% higher than in T, respectively. The marketable yield did not differ statistically between treatments except T and . Although there was no statistical difference, the highest numerical values belonged to the T (28907.41 kg ha) and T (28814.82 kg ha) treatments. In terms of marketable yield, T and T treatments gave 5.05% and 4.71% more than T, respectively.
It was determined that the microbial fertiliser used had no negative effect on the lettuce crop and even had an ameliorative effect. With the use of microbial fertiliser, both chemical fertilisation was reduced and higher yield and quality values were obtained from T3 and T treatments compared to chemical treatment alone (T). In addition, the ameliorative effects of the foliar application of microbial fertiliser were also noted in the T treatment. As a result, this study showed that the use of microbial fertiliser could increase yield and quality and save at least 25% of fertiliser.
在当今条件下，不减少粮食产量就不可能消除化学投入。因此，需要采用综合方法来减少化学投入的负面影响。其中一种替代方法是使用有益细菌，它既能提高蔬菜作物的产量和品质，又能减少化肥的使用。本研究旨在测试微生物肥料与无机肥料结合对生菜生长、生化特性和产量的影响，以及是否可以减少化肥的使用。选用了Caipira卷心生菜品种作为植物材料。所使用的微生物肥料含有7种不同的微生物和2种不同的酵母。试验包括8个处理：对照（T1）、100%化学施肥（T2）、50%化学施肥+微生物施肥（T3）、75%化学施肥+微生物施肥（T4）、100%化学施肥+微生物施肥（T5）、单独微生物施肥（T6）、50%化学施肥+微生物施肥+叶面微生物施肥（T7）、75%化学施肥+微生物施肥+叶面微生物施肥（T8）。
采用方差分析在p<0.05的显著水平对研究结果进行统计评估，并使用最小显著差数法比较均值。结果表明，微生物肥料对生菜的生长特性没有负面影响，甚至具有改善作用。在T3、T4、T5和T6处理中获得了最高的根干重。T5处理的干重分别比T2和T1多7.8%和5.5%。处理对生化特性有显著影响，T3和T4有相似的结果，这一点很显著。因为在T3处理中化肥用量减少了50%。在T4处理中化肥用量减少了50%。微生物肥料处理对生菜颜色形成没有负面影响，甚至从T3、T4、T5和T6处理中收获的生菜更绿。最高总产量来自T5（30638.89千克/公顷）和T4（305１8.52千克/公顷）。换句话说，当化肥推荐用量减少25%时，获得了更高的产量。T3和T4的产量分别比T2高6.71%和6.29%。除T1和T2外，各处理间可销售产量在统计学上没有差异。虽然没有统计学差异，但最高数值属于T5（28907.41千克/公顷）和T4（28814.８２千克/公顷）处理。就可销售产量而言，T3和T4处理分别比T2多5.05%和4.71%。
确定所使用的微生物肥料对生菜作物没有负面影响，甚至具有改善作用。通过使用微生物肥料，可以减少化学施肥，并且与单独化学处理（T2）相比，从T3和T4处理中获得了更高的产量和品质值。此外，在T7处理中也注意到了叶面施用微生物肥料的改善作用。结果表明，使用微生物肥料可以提高产量和品质，并至少节省25%的肥料。
