Split root fertigation enhances cucumber yield in both an open and a semi-closed greenhouse

Jokinen, Kari; Särkkä, Liisa; Näkkilä, Juha; Tahvonen, Risto

doi:10.1016/j.scienta.2011.09.008

Cited by 12 publications

(12 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this study, the use of split N application via drip irrigation increased maize grain yield by 15 and 15% under H and by 13 and 14% under L, compared with conventional fertilization in 2012 and 2013, respec-tively. This yield increase resulting from split application of N is consistent with the results of other studies (David et al, 2004;Hebbar et al, 2004;Jokinen et al, 2011). The increased grain yield for drip fertigation under L was mainly the result of greater kernel mass, whereas an increase in both kernels per ear and kernel mass probably contributed to the yield increase for drip fertigation under H. Grain yield and kernel mass varied significantly between years and was probably related to the lower soil water content at R3 (Fig.…”

Section: Discussionsupporting

confidence: 92%

Multisplit Nitrogen Application via Drip Irrigation Improves Maize Grain Yield and Nitrogen Use Efficiency

et al. 2017

View full text Add to dashboard Cite

Conventional fertilization with most N applied before or during early maize (Zea mays L.) growth stages can negatively affect production if soil N is insufficient after silking. Here, drip irrigation with a split application of N (drip fertigation) was evaluated to determine whether the effect on yield and N use efficiency (NUE) differs with cropping practice. Compared with conventional fertilization, drip fertigation increased yield by 13 and 14% at a low planting density under a low N rate (L) and by 15% at a high planting density under a high N rate (H) in 2012 and 2013, respectively. Yield increases under drip fertigation were attributed to 18 and 17% increases in postsilking dry matter (DM) accumulation under L, and 12 and 10% increases in presilking DM accumulation, and 17 and 16% increases in postsilking DM accumulation under H in 2012 and 2013, respectively. Increased postsilking N accumulation under drip fertigation, promoted by greater root length and soil mineral N after silking, maintained increased leaf area index (LAI) and DM accumulation rate to improve postsilking DM accumulation under L. Greater N accumulation under drip fertigation from the 12‐leaf stage to silking and after silking promoted greater LAI and DM accumulation rate to increase pre‐ and postsilking DM accumulation under H. Because of greater grain yield and N uptake and less water consumption, drip irrigation improved NUE and irrigation water use efficiency. Drip fertigation can effectively improving maize grain yield and NUE resulting from improved DM accumulation with increased early‐season N uptake.

show abstract

Section: Discussionsupporting

confidence: 92%

Multisplit Nitrogen Application via Drip Irrigation Improves Maize Grain Yield and Nitrogen Use Efficiency

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Thus, the water uptake per leaf area was lower in the high EC than that in the low EC treatment. High EC nutrient solution (more than 3.5 dS m −1 ) reduces the water potential in the root zone and reduces water uptake (Li and Stanghellini, 2001;Jokinen et al, 2011;van de Sanden and Veen, 1992). In our experiment, in the high EC treatment, low water potential in the root zone reduced water uptake in both G m and G c and caused the difference to be less.…”

Section: Discussionmentioning

confidence: 48%

Effects of relative humidity and nutrient supply on growth and nutrient uptake in greenhouse tomato production

Suzuki

Umeda

Matsuo

et al. 2015

Scientia Horticulturae

View full text Add to dashboard Cite

a b s t r a c tHigher relative humidity under elevated CO 2 conditions increases stomatal conductance and is expected to promote photosynthesis and growth of tomato. However, yield increase under higher relative humidity has been often reported to be unstable, depending on the growing conditions. Therefore, we investigated the effect of relative humidity and nutrient supply on growth and nutrient uptake under elevated CO 2 conditions in greenhouse tomato production. In two greenhouses, we grew tomato hydroponically at two electrical conductivity (EC) levels (low EC treatments: 0.8-1.2 dS m −1 , high EC treatments: 1.6-1.9 dS m −1 ). In one greenhouse, we installed a humidification system. The other was designated as a control. The dry weight (DW) per plant tended to increase with humidification though without significant differences. The leaf area per plant was not affected by humidification, but the high EC treatment increased the leaf area. The average water uptake in the low EC with mist decreased compared with that without mist. Our results suggested that water use efficiency was increased by higher humidity, whereas the nutrient content of leaves was suppressed by mist in the low EC. In both the treatments, supplying higher EC levels of nutrient solutions increased N, K and P contents but did not increased Ca or Mg contents as well as in low EC without mist. These results suggest that supplying high EC nutrient solutions cannot increase Ca and Mg contents sufficiently in leaves and stems. To stably increase yield of tomato by humidification under elevated CO 2 conditions, it is important to monitor the transpiration rate and carefully control relative humidity.

show abstract

“…The increasing N fertilizer consumption leads to environmental problems such as greenhouse gas emission and N loss. Fertigation, which integrates irrigation and fertilization, has showed many advantages, including direct supplement to root-zone, a lasting, stable environment of water and fertilizer, less soil fixation to fertilizer and less greenhouse gas emission 10,11 . Some studies indicated that fertigation can contribute to higher yield, nutrient uptake 12,13 and nutrient utilization under rational fertilization level 12 .…”

Section: Introductionmentioning

confidence: 99%

Alternate partial root-zone drip irrigation improves water– and nitrogen– use efficiencies of sweet-waxy maize with nitrogen fertigation

Kang

2017

Sci Rep

View full text Add to dashboard Cite

Alternate partial root–zone drip irrigation (ADI) or fertigation has favorable effect on crop water- and nitrogen- use efficiencies (WUE and NUE). However, the advantage of combined application of ADI and nitrogen fertigation on crop WUE and NUE remains unclear. A pot experiment was conducted to investigate the impact of three irrigation methods (CDI conventional drip irrigation (both halves of pot irrigated), ADI (both halves of pot alternatively irrigated) and FDI fixed partial root–zone drip irrigation (fixed half of pot irrigated)) and five nitrogen treatments (F0 no N supplied, F1-F4 0.2, 0.18, 0.16 and 0.14 g N per kg soil via fertigation) on sweet-waxy maize. Compared with CDI, ADI reduced water consumption by 19.9%, but increased water use efficiency based on dry seed yield (WUEs) by 32.3%, and also enhanced nitrogen apparent recovery fraction (Nrf) and nitrogen agronomic efficiency (NAE). F1-F4 augmented dry mass accumulation, dry seed yield and total nitrogen uptake if compared to F0. Moreover, F2-ADI had higher shoot and total dry masses, WUEs, total nitrogen uptake, Nrf and NAE. Thus ADI increased nitrogen uptake, WUE and NUE of sweet-waxy maize with nitrogen fertigation of 0.18 g N per kg soil in this study.

show abstract

Split root fertigation enhances cucumber yield in both an open and a semi-closed greenhouse

Cited by 12 publications

References 33 publications

Multisplit Nitrogen Application via Drip Irrigation Improves Maize Grain Yield and Nitrogen Use Efficiency

Multisplit Nitrogen Application via Drip Irrigation Improves Maize Grain Yield and Nitrogen Use Efficiency

Effects of relative humidity and nutrient supply on growth and nutrient uptake in greenhouse tomato production

Alternate partial root-zone drip irrigation improves water– and nitrogen– use efficiencies of sweet-waxy maize with nitrogen fertigation

Contact Info

Product

Resources

About