Ikkonen Elena, Chazhengina Svetlana, Jurkevich Marija
Karelian Research Center RAS, Institute of Biology, Puskinskaja, 11, 185610 Petrozavodsk, Russia.
Karelian Research Center RAS, Institute of Geology, Puskinskaja, 11, 185610 Petrozavodsk, Russia.
Plants (Basel). 2021 Feb 10;10(2):340. doi: 10.3390/plants10020340.
To reduce the use of commercial conventional inorganic fertilizers, the possibility of using pulp and paper industry wastes in agriculture as an alternative source of nutrients is recently under study and discussion. This work aimed to evaluate the effect of sodium lignosulfonate application to soil on photosynthetic leaf nutrient (N, P, K, Ca, Mg, Fe, Mn, and Na) and water use efficiency. A pot culture experiment was conducted with cucumber seedlings, using five lignosulfonate concentrations (0, 1, 2.5, 5, and 10 vol. %) in sandy soil under sufficient or low nutrient availability for plants. The impact of nutrient availability on the plants' physiological traits was stronger than the lignosulfonate impact. Under sufficient nutrient availability, the lignosulfonate application resulted in decreased photosynthetic N, P, K, Ca, Mg, Fe, and Na use efficiency. Cucumber growth and development, and photosynthetic nutrient, water, and light use efficiency were significantly reduced with a nutrient deficiency. The sodium lignosulfonate application was not successful in eliminating the negative effects of nutrient deficit on cucumber seedlings.
为减少商业常规无机肥料的使用，将制浆造纸工业废料用作农业养分替代来源的可能性近来正处于研究和讨论之中。这项工作旨在评估向土壤施用木质素磺酸钠对叶片光合养分（氮、磷、钾、钙、镁、铁、锰和钠）及水分利用效率的影响。采用黄瓜幼苗进行了盆栽试验，在植物养分充足或不足的情况下，于沙质土壤中使用五种木质素磺酸钠浓度（0、1、2.5、5和10体积%）。养分有效性对植物生理特性的影响强于木质素磺酸钠的影响。在养分充足的情况下，施用木质素磺酸钠导致光合氮、磷、钾、钙、镁、铁和钠的利用效率降低。养分缺乏时，黄瓜的生长发育以及光合养分、水分和光能利用效率显著降低。施用木质素磺酸钠未能成功消除养分亏缺对黄瓜幼苗的负面影响。
