Effects of different levels of calcium fertilizer on the growth,yield,and rhizome quality of ginger in facilities cultivation
In the present work,ginger cultivar Laiwu ginger was used as the test material,a greenhouse□pot experiment was conducted to investigate the effects of 5 different levels(2.5,5.0,7.5,10.0 and 12.5 g·plant-1)of Ca(NO3)2 on growth,yield and the quality of ginger by adding it to the rhizosphere.The results showed that exogenous Ca(NO3)2 appli-cation promoted the growth of ginger,increased leaf pigment content,net photosynthetic rate,and rhizomes'yield and quality.When the Ca(NO3)2 applied dosage was≥7.5 g·plant-1,it had a significant effect on ginger growth,yield,and quality improvement.And the promoting effect was most significant at 10.0 g·plant-1.At the harvest period,compared with no applying Ca(NO3)2(CK),the chlorophyll content and photosynthetic rate of ginger leaves increased by 21.44% and 34.37%,respectively,and the yield increased by 44.22%;the content of soluble sugar,soluble protein,amino acids,and vitamin C increased by 28.13%,36.52%,19.15%,and 17.49%,respectively.In summary,exogenous Ca(NO3)2 within the experimental range promoted the growth and yield of ginger,improved the quality of ginger rhizomes.The treatment with exogenous Ca(NO3)2 application rate of 10.0 g·plant-1 was more conducive to improving yield and quality.
万方数据
维普
