Interactions between soil water content and fertilizer on growth characteristics and biomass yield of Chinese white poplar (<i>Populus tomentosa</i>Carr.) seedlings

Wang, Dong; Qin, Jingping; Li, Jiyue; Zhao, Yan; Zhang, Zhiyi

doi:10.1080/00380768.2010.549445

Cited by 34 publications

(25 citation statements)

References 30 publications

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“…This is perhaps related to imbalanced nutrients such as nitrogen (N); it is thus important for improvement of seedling quality to identify N requirements of this species. In addition, better matching fertilizer application to plant requirements also has environmental benefits in reducing nutrient losses to the atmosphere or water (Dong et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Growth and nutrient uptake dynamics ofMytilaria laosensisseedlings under exponential and conventional fertilizations

Lin

Zeng

et al. 2012

Soil Science and Plant Nutrition

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The growth characteristics and nutrient uptake dynamics of Mytilaria laosensis Lec. seedlings treated weekly with conventional and exponential fertilizations were investigated at intervals of 3 weeks for 12 weeks in a greenhouse. Leaf area and pigment compositions were also examined at the final harvest. The fertility treatments (mg nitrogen seedling -1 ) included two conventional (50C and 100C) and four exponential (50E, 100E, 200E and 400E) fertilizations, and no fertilization (0) as control. The biomass and nutrient contents of M. laosensis seedlings increased exponentially with time. Steady-state nutrition of nitrogen (N) and phosphorus (P) were achieved under exponential fertilization treatment of 50 mg N seedling À1 (50E) and conventional fertilization treatment of 100 mg N seedling -1 (100C), resulting from simultaneous increase of their biomass and nutrient contents. The nutrient uptake efficiency continuously increased over time in conventionally fertilized seedlings, but it increased initially and declined or remained stable from 11 weeks after transplanting in the exponentially fertilized seedlings. At the end of the experiment, the conventionally fertilized seedlings performed remarkably better than all exponentially fertilized seedlings except for seedlings in the exponential treatment of 200 mg N seedling -1 (200E) in height, root collar diameter and biomass. The optimum N and P uptake occurred in 200E seedlings because their N and P contents were 71%/60% and 14%/9% higher than both conventionally fertilized seedlings (50C/100C) without significant differences in growth performance between them. The leaf areas and chlorophyll contents of seedlings increased significantly with the increase of fertilizer levels and nearly peaked at the range from 100 to 200 mg N seedling -1 , whereas the delivery schedule (conventional and exponential) had little effect on leaf areas and chlorophyll contents of seedlings at the same nutrient level (50 or 100 mg N seedling -1 ). These findings will provide evidence to make guidelines on fertilization for nursery production of M. laosensis, and help understand the nutrient demands for this species and further benefit the development of its plantations.

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Section: Introductionmentioning

confidence: 99%

Growth and nutrient uptake dynamics ofMytilaria laosensisseedlings under exponential and conventional fertilizations

Lin

Zeng

et al. 2012

Soil Science and Plant Nutrition

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“…The leaf photosynthetic mechanism is complicated and controlled by numerous intrinsic and environmental factors. As reported by Dong et al (2011) and Liu et al (2013), soil water and fertiliser regimes affect the net leaf photosynthetic rate (Pn) of plants markedly. Chlorophyll is an essential component of the plant photosynthesis mechanism, and the content of this pigment is closely related to photosynthetic capacity.…”

Section: Introductionmentioning

confidence: 99%

“…Seedlings were watered to reach the soil water content levels listed in Table 2. We calculated irrigation volume (IV, mL) using a 1000-mL measuring cylinder following the procedures of Dong et al (2011) thus:…”

Section: Experiments Designmentioning

confidence: 99%

“…Soil water and nutrients are key limiting factors for plant growth; they have marked effects on physiological characteristics, growth, and productivity (Dong et al, 2011;Liu et al, 2013;Porto et al, 2014). In general, leaf functional traits and physiological characteristics, which are strongly influenced by environmental factors, provide key information on plant growth and metabolic status.…”

Section: Introductionmentioning

confidence: 99%

“…Response surface methodology (RSM) provides three-dimensional plots which enable interpretation of the ways in which environmental variables affect plant responses (Nasrollahzadeh et al, 2007;Dong et al, 2011). We used an RSM based on a rotatable central composite design (RCCD) to study the interactive effects of soil water (W), nitrogen application (N), and phosphorus application (P) on the leaf Pn, SPAD, and δ…”

Section: Introductionmentioning

confidence: 99%

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Interactions between soil water and fertilizer on leaf photosynthesis and δ13C of Catalpa bungei seedlings

et al. 2016

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Abstract:Our objective was to identify combinations of irrigation and fertiliser application that promoted the photosynthetic productivity and water use efficiency (WUE) of Catalpa bungei. Using response surface methodology based on a rotatable central composite design, we conducted a pot experiment with C. bungei clone 004-1 seedlings. The experiment quantified the effects of interactions between soil water content (W), nitrogen application rate (N), and phosphorus application rate (P) on leaf net photosynthetic rates (Pn), SPAD values (SPAD-502 meter readings of leaf chlorophyll), and carbon isotope composition (δ 13 C). N had significantly positive effects on the all three leaf parameters, while W had significantly negative effects on leaf δ 13 C signatures but positive effects on leaf Pn and SPAD values. The magnitude of the N effect exceeded that of the W effect. P had no significant effects on any of the three leaf parameters. The W × N interaction had significant positive effects on Pn and SPAD, but significant negative effects on leaf δ 13 C. Thus, irrigation and nitrogen application had different effects on seedling growth and WUE, and the two effects were interactive. Catalpa bungei growth was promoted by appropriately increasing nitrogen application and irrigation, but WUE was improved by increasing N and decreasing irrigation. Therefore, strategies for the irrigation and fertilisation of C. bungei plantations should be designed to appropriately balance plant growth and WUE.

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Optimizing the Cost-Effectiveness of a Multicomponent Intervention Using Data from a Factorial Experiment: Considerations, Open Questions, and Tradeoffs Among Multiple Outcomes

Dziak

2018

Optimization of Behavioral, Biobehavioral, and Biomedical Interventions

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Interactions between soil water content and fertilizer on growth characteristics and biomass yield of Chinese white poplar (Populus tomentosaCarr.) seedlings

Cited by 34 publications

References 30 publications

Growth and nutrient uptake dynamics ofMytilaria laosensisseedlings under exponential and conventional fertilizations

Growth and nutrient uptake dynamics ofMytilaria laosensisseedlings under exponential and conventional fertilizations

Interactions between soil water and fertilizer on leaf photosynthesis and δ13C of Catalpa bungei seedlings

Optimizing the Cost-Effectiveness of a Multicomponent Intervention Using Data from a Factorial Experiment: Considerations, Open Questions, and Tradeoffs Among Multiple Outcomes

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