Dry weight, root length, and nutrient (N, P, K, Ca, and S) uptake. Root length had a robust good correlation with plant fresh weight, leaf area, and nutrient (K and P) uptake. Fresh fresh weight, leaf location, and nutrient (K and P) uptake. Fresh positive correlation with plant weight had aasignificantlypositive correlation with nutrient (N, P,(N,and K and S) uptake, and weight had considerably optimistic correlation with nutrient K P, S) uptake, and dry dry weight was considerably correlated with all nutrient absorption, specifically with N weight was considerably correlated with all nutrient absorption, specifically with N uptake uptake (Pearson’s correlation coefficient: 0.849). (Pearson’s correlation coefficient: 0.849).Figure three. Correlations amongst plant development parameters and plant nutrient uptake. Pearson’s correlation coefficients are are Figure three. Correlations amongst plant development parameters and plant nutrient uptake. Pearson’s correlation coefficients presented. “” “” denotesp0.05 and “” denotes pp0.01. presented. denotes p 0.05 and “” denotes 0.01.3.four. Nutrient Use Lomeguatrib manufacturer efficiency under Various Flow Rates 3.4. Nutrient Use Efficiency beneath Different Flow RatesThe nutrient use efficiency under distinct substrate flow prices is shown in Figure 4. Figure 4a shows that with an increased flow rate from two to 4 L/min, the nitrogen useAgronomy 2021, 11,use efficiency (KUE) decreased by 22.0 , although further intensification of the flow price to six L/min and eight L/min resulted in increases in KUE by 17.1 and 36.six , respectively. With an enhanced flow price from two to four L/min, the calcium use efficiency (CaUE) elevated by 45.two (Figure 4d), even though with an enhanced flow price from four to six L/min, CaUE decreased by 27.6 . Additional growing the flow rate from six to eight L/min induced the CaUE 7 of 11 to improve by 76.7 . As is often observed from Figure 4f, with an increased flow rate from two to four L/min, the sulfur use efficiency (SUE) improved by 9.2 and additional growing the flow rate to six efficiency (NUE) decreased in three.five , even though with all the SUE values were L/min at all flow L/min resulted within a lower by the SUE by eight.5 .an increase from four to six comparable and from 6 to except for a NUE elevated by 19.three and 26.0 , rates 8 L/min, thesignificant 54 improve at 8 L/min. respectively.(a)(b)Agronomy 2021, 11, x FOR PEER REVIEW8 of(c)(d)(e)(f)Figure four. Nutrient use efficiency beneath distinct flow rates (values are calculated by dry weight/nutrient uptake of aa complete Figure 4. Nutrient use efficiency below diverse flow rates (values are calculated by dry weight/nutrient uptake of whole plant). (a) Nitrogen use efficiency (NUE); (b)(b) phosphorus efficiency (PUE); (c) potassium use efficiency (KUE); (d) calcium plant). (a) Nitrogen use efficiency (NUE); phosphorus use use efficiency (PUE); (c) potassium use efficiency (KUE); (d) calcium use efficiency (CaUE); (e) magnesium use efficiency(f) sulfur use efficiency (SUE). There were significant differences (MgUE); (f) sulfur use efficiency (SUE). There were considerable use efficiency (CaUE); (e) magnesium use efficiency (MgUE); variations in the bars marked with diverse letters (p 0.05). Information are expressed as suggests standard error (n = 4). in the bars marked with different letters (p 0.05). Information are expressed as suggests common error (n = 4).4. Discussion Root extension, mass flow, and diffusion are the major forms of plant nutrients in soil moving to the root YN968D1 Biological Activity surface [19]. In contrast to soil, the culture substrate (nutrie.
