He Lizhong, Ding Xiaotao, Jin Haijun, Zhang Hongmei, Cui Jiawei, Chu Jianfeng, Li Rongguang, Zhou Qiang, Yu Jizhu
Shanghai Key Lab of Protected Horticultural Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
Shaoxing Agricultural Products Testing Center, Shaoxing, Zhejiang, 312000, China.
Heliyon. 2022 Oct 7;8(10):e10930. doi: 10.1016/j.heliyon.2022.e10930. eCollection 2022 Oct.
Replacing rockwool with more sustainable materials, such as coir, is an effective measure to improve the sustainability of soilless cultivation in the greenhouse. To comprehensively assess the feasibility of coir before using it widely, coir was compared to rockwool as a cucumber cultivation substrate to evaluate its performance on mineral elements in the substrates, drainage, and in the plants. Plant growth, amino acids, and flavor substances of cucumber fruits were also compared between the two substrates. Compared to rockwool, coir significantly increased the LAI and yield of cucumber crops as well as contents of Ca, Mg, S, Cl and Zn in leaves and fruits. Contents of P, K, Ca, Mg, Cl, Zn, and B in the substrate were higher for coir while those of Fe, Cu, and Mn in the drainage lower. Moreover, coir also significantly increased contents of amino acids (His, Leu, Ile, Phe, Lys, Asp, Glu and Pro) and flavor substance (TC, PS, TP, CLL, CuB, and LA) in cucumber fruits. Our results demonstrated the potential of coir as a replacement of rockwool to improve sustainability of soilless cultivation in the greenhouse.
用更具可持续性的材料（如椰糠）替代岩棉是提高温室无土栽培可持续性的有效措施。为了在广泛使用椰糠之前全面评估其可行性，将椰糠与岩棉作为黄瓜栽培基质进行比较，以评估其在基质中的矿质元素、排水以及植物方面的性能。还比较了两种基质上黄瓜的植株生长、氨基酸和果实风味物质。与岩棉相比，椰糠显著提高了黄瓜作物的叶面积指数和产量，以及叶片和果实中钙、镁、硫、氯和锌的含量。椰糠基质中磷、钾、钙、镁、氯、锌和硼的含量较高，而排水中铁、铜和锰的含量较低。此外，椰糠还显著增加了黄瓜果实中氨基酸（组氨酸、亮氨酸、异亮氨酸、苯丙氨酸、赖氨酸、天冬氨酸、谷氨酸和脯氨酸）和风味物质（总糖、蔗糖、总酚、类胡萝卜素、类黄酮和乳酸）的含量。我们的结果表明，椰糠有潜力替代岩棉，以提高温室无土栽培的可持续性。
