Skip to main content
. 2021 Jun 3;11(6):835. doi: 10.3390/biom11060835

Table 4.

Effect of fertilization treatments with NH4NO3 (200 kg N ha−1) and foliar spray with 2000 mg L−1. WPH on lettuce content of N-NO3 (mg kg−1 plant), growth, and yield traits.

Fertilization Treatments N-NO3
mg kg−1 Soil		 Plant Height (cm) Fresh Weight
(g plant−1)		 Dry Weight
(g plant−1)		 Fresh Yield
(Mg ha−1)		 N-NO3
mg kg−1
Plant
Control 27.47 ± 0.90 25.37 ± 0.49 473.6 ± 1.83 38.03 ± 0.52 31.42 ± 0.25 1343 ± 4.27
NH4NO3 * 61.53 ± 0.68 37.17 ± 0.61 962.3 ± 2.81 64.73 ± 0.76 43.55 ± 0.60 5858 ± 2.50
WPH ** 30.13 ± 0.56 34.7 ± 0.38 877.6 ± 1.04 56.23 ± 0.44 41.57 ± 0.31 2028 ± 3.58
p-value 0.0104 0.0052 0.0021 0.0021 0.0021 0.0021

* 200 kg N ha−1. ** 2000 mg L−1. All data are expressed as mean ± SE.