Nutrient uptake of hybrid poplar in competition with weeds using the soil supply and nutrient demand (SSAND) model

2009 ◽  
Vol 89 (2) ◽  
pp. 197-207 ◽  
Author(s):  
Bachitter S Kabba ◽  
J. Diane Knight ◽  
Ken C.J. Van Rees
Keyword(s):  
Nutrient Uptake ◽  
Soil Type ◽  
N Mineralization ◽  
Populus Deltoides ◽  
N Uptake ◽  
Hybrid Poplar ◽  
P Uptake ◽  
Controlled Environment ◽  
K Uptake ◽  
Nutrient Demand

Mechanistic nutrient uptake models can help gain a quantitative understanding of nutrient uptake by plants under weed-competing conditions. The objectives of this study were to check the applicability of the soil supply and nutrient demand (SSAND) model to predict N, P and K uptake by hybrid poplar (Populus deltoides × Populus × petrowskyana var. Walker) grown with and without competition with dandelion (Taraxacum officinale) and quackgrass (Elymus repens) in a controlled environment, and to determine if incorporating N mineralization into the model would improve N uptake predictions. Simulation results showed that N uptake was underestimated for hybrid poplar by 58 to 73%, depending upon soil type and weed treatment. Incorporation of N mineralization as a model input improved the hybrid poplar N uptake predictions by 24 and 67% in the pasture and alfalfa soil, respectively, when grown without weeds. The SSAND model underestimated P uptake by 84 to 89% and overestimated K uptake by 28 to 59% for hybrid poplar depending upon the soil type and weed treatment. Results from this study illustrate that modeling competition between two species in a controlled environment study is a complex process and that further work is required to understand the underlying processes controlling nutrient supply and uptake in these systems. Key words: Nutrient uptake modeling, SSAND model, hybrid poplar, weeds, sensitivity analysis

scholarly journals Optimizing The Utilization of FIlter Pressmud to Increase Plant Nutrient Uptake in The Production of Granule Compound Fertilizers

2020 ◽  
Vol 18 (1) ◽  
pp. 1-7
Author(s):  
Kasmadi Kasmadi ◽  
Budi Nugroho ◽  
Atang Sutandi ◽  
Syaiful Anwar
Keyword(s):  
Production Process ◽  
Nutrient Uptake ◽  
Organic Material ◽  
N Uptake ◽  
P Uptake ◽  
Positive Influence ◽  
Plant Nutrient ◽  
K Uptake ◽  
Plant Nutrient Uptake ◽  
Compound Fertilizer

Filter pressmud is the waste most considered to pollute the environment and is a problem for sugar factories and the community.  There is also an opinion that filter pressmud is worthless waste and considered as B3 waste.  Filter pressmud is an organic material with abundant and has not been used optimally.  Filter pressmud contains nutrients that are needed by plants, so it is very good for increasing the composition of nutrients in granule compound fertilizer.  The objectives to be achieved in this study are: to examine the effect of the addition of filter pressmud on the production process of granule compound fertilizer on plant nutrient uptake.  The results obtained, the addition of filler blotong 60% -90% in the treatment using SOP can increase N uptake by 84.93-384.18 mg, P uptake of 2.65-11.62 mg, and K uptake of 25.04-  82.38 mg.  Whereas the treatment using KCl had a positive influence on the addition of filler filter pressmud by 70%, with an increase in N, P and K nutrient uptake of 45.62 mg, 3.87 mg and 4.89 mg, respectively

scholarly journals Effects of Short-term Tillage of a Long-term No-Till Land on Crop Yield and Nutrient Uptake in Two Contrasting Soil Types

2016 ◽  
Vol 5 (3) ◽  
pp. 32 ◽  
Author(s):  
Miles Dyck ◽  
Sukhdev S. Malhi ◽  
Marvin Nyborg ◽  
Dyck Puurveen
Keyword(s):  
Nutrient Uptake ◽  
Crop Yield ◽  
Crop Production ◽  
N Uptake ◽  
P Uptake ◽  
N Fertilization ◽  
Short Term ◽  
Plant Yield ◽  
No Till

<p>Pre-seeding tillage of long-term no-till (NT) land may alter crop production by changing the availability of some nutrients in soil. Effects of short-term (4 years) tillage (hereafter called reverse tillage [RT]) of land previously under long-term (29 or 30 years) NT, with straw management (straw removed [SRem] and straw retained [SRet]) and N fertilizer rate (0, 50 and 100 kg N ha<sup>-1</sup> in SRet, and 0 kg N ha<sup>-1</sup> in SRem plots), were determined on plant yield (seed + straw, or harvested as forage/silage at soft dough stage), and N and P uptake in growing seasons from 2010 to 2013 at Breton (Gray Luvisol [Typic Cryoboralf] loam) and from 2009 to 2012 at Ellerslie (Black Chernozem [Albic Argicryoll] loam), Alberta, Canada. Plant yield, N uptake and P uptake tended to be greater with RT compared to NT in most cases at both sites, although significant in a few cases only at Ellerslie. On average over both sites, RT produced greater plant yield by 560 kg ha<sup>-1</sup> yr<sup>-1</sup>, N uptake by 5.8 kg N ha<sup>-1</sup> yr<sup>-1</sup>, and P uptake by 1.8 kg P ha<sup>-1</sup> yr<sup>-1</sup> than NT. There was no consistent beneficial effect of straw retention on plant yield, N uptake and P uptake in different years. Plant yield, N uptake and P uptake increased with N fertilization at both sites, with up to the maximum rate of applied N at 100 kg N ha<sup>-1</sup> in 3 of 4 years at Breton and in 2 of 4 years at Ellerslie. In conclusion, our findings suggested some beneficial impact of occasional tillage of long-term NT soil on crop yield and nutrient uptake.</p>

Combinations of cover crop mixtures and bio-waste composts enhance biomass production and nutrients accumulation: a greenhouse study

2015 ◽  
Vol 31 (6) ◽  
pp. 507-515 ◽  
Author(s):  
Aime Jean Messiga ◽  
Mehdi Sharifi ◽  
Sheena Munroe
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Agricultural Soils ◽  
N Uptake ◽  
P Uptake ◽  
N Fertilization ◽  
K Uptake ◽  
Soil P ◽  
Greenhouse Study ◽  
Synthetic Fertilizer

AbstractImproved farming practices are needed to produce more food in a sustainable way. This study assessed 12 combinations of cover crop mixtures and amendment treatments and their effects on shoot and root dry (matter (DM) weights, nitrogen (N), phosphorus (P) and potassium (K) uptakes in plants, Mehlich-3 extractable P (PM3) and K (KM3). Shoot and root DM weights were increased by 30–63% with combinations of clover-based cover crop mixtures and 65 Mg ha−1of municipal solid food waste (MSFW) compared with synthetic fertilizer. The combination of clover-based cover crop mixtures with MSFW increased N uptake by 38 and 30%, P uptake by 57 and 40% and K uptake by 77 and 77% compared with fertilized and unfertilized treatments, respectively. The combination of vetch-based cover crop mixtures with MSFW had no effect on N uptake, but increased P uptake on average by 43%, and K uptake on average by 11% compared with fertilized and unfertilized treatments. The highest soil PM3and KM3values were obtained with additions of MSFW, while the lowest were obtained with synthetic fertilizer indicating that the amount of P and K added with MSFW were greater than cover crop needs. Combining cover crop mixtures and MSFW at levels recommended for N fertilization allows meeting cover crops’ nutrient needs and increases biomass inputs to agricultural soils, but long-term monitoring of soil P is required to limit potential P build-up.

scholarly journals Plant Nitrogen Uptake From Insect Frass Is Affected by the Nitrification Rate as Revealed by Urease and Nitrification Inhibitors

2021 ◽  
Vol 5 ◽  
Author(s):  
Conor Watson ◽  
Timo Preißing ◽  
Florian Wichern
Keyword(s):  
Microbial Biomass ◽  
Nutrient Uptake ◽  
N Mineralization ◽  
N Uptake ◽  
Italian Ryegrass ◽  
Organic N ◽  
Nutrient Concentrations ◽  
Nitrite Accumulation ◽  
Nitrification Inhibitors ◽  
N Release

Insect protein production is considered a sustainable alternative to livestock protein which furthermore utilizes waste streams. Its production can have positive but also potentially negative environmental effects, which require evaluation. Frass, the byproduct of insect production, is regarded an efficient organic fertilizer or soil amendment. However, several studies report negative frass effects on plant growth and nitrogen (N) cycling. Therefore, a pot trial was carried out which sought to understand N release from frass and subsequent growth and nutrient uptake of Italian ryegrass. Mealworm frass (MWF) or buffalo worm frass (BFW) was applied at two rates (1.5 and 3% w/w) to a soil-sand mix. To evaluate N release processes, frass was applied alone, with a nitrification inhibitor (NI), a urease inhibitor (UI), or both (NI+UI). Plant N, nutrient uptake and soil inorganic N were measured at the experiment's end. To gauge whether altered N fluxes induced changes in the microbial community, soil microbial biomass, bacterial/archaeal abundances and ergosterol content as a fungal biomarker, were determined. Both frass types and application rates stimulated microbial growth and N mineralization. The 3% rate inhibited seed germination, possibly due to salinity or ammonia toxicity. At the 1.5% rate, both frass types were effective fertilizers. MWF led to higher biomass and nutrient uptake, owing to its higher extractable nutrient concentrations. The 3% rate caused nitrite accumulation in the absence of NI. NI improved plant biomass, nutrient uptake, stimulated archaeal and bacterial abundances and prevented nitrite accumulation. UI reduced N mineralization, showing that a substantial fraction of frass organic N is ureic. UI enhanced fungal contribution to the microbial biomass, revealing the importance of bacteria in frass N mineralization processes when UI is not applied. NI and UI combined, induced greater N release from frass than UI or NI alone. Our study demonstrated the usefulness of NI and UI in studying N release from frass. NI can improve plant N uptake and minimize N losses following frass application, reducing its potentially negative effects. UI can retard N release from frass, allowing its application as a slow-release fertilizer, but should not be used concurrently with NI.

Effect of potassium and sulphur on nutrient uptake, yieldand quality of Pigeon Pea (Cajanus cajan)

2016 ◽  
Vol 36 (4) ◽  
Author(s):  
S. S. Balpande ◽  
P. A. Sarap ◽  
R. M. Ghodpage
Keyword(s):  
Adverse Effect ◽  
Grain Yield ◽  
Nutrient Uptake ◽  
Cajanus Cajan ◽  
Pigeon Pea ◽  
P Uptake ◽  
K Uptake ◽  
College Of Agriculture ◽  
Yield And Quality

A study was conducted with graded levels of potassium and sulphur on pigeon pea to assess the nutrient uptake, yield and quality at Agronomy Farm, College of Agriculture, Nagpur (M.S.) The data revealed that application of K and S levels significantly influenced the uptake of major and micronutrient in pigeon pea. High N and P uptake was observed due to application of 30 kg potassium and 20 kg sulphur per hectare. Potassium uptake was increased significantly with increasing the levels of K. The highest K uptake was noticed in 45 kg K and 20 kg S per hectare combination. The recovery of NPK was higher in 30 kg potassium per hectare. Due to increased level of potassium and sulpur there was no adverse effect on calcium assimilation and highest uptake of calcium was observed in the application 30 kg K and 20 kg S per hectare. The optimum supply of K and S improves the uptake of micronutrients. Significantly high grain yield and protein yield was observed due to application 30 kg K and 20 kg S per hectare. Therefore balanced fertilization of NPKS nutrients is required in pigeon pea.

Hydraulic lift by canola plants aids P and K uptake from dry topsoil

2008 ◽  
Vol 59 (1) ◽  
pp. 38 ◽  
Author(s):  
T. J. Rose ◽  
Z. Rengel ◽  
Q. Ma ◽  
J. W. Bowden
Keyword(s):  
Nutrient Uptake ◽  
Fine Root ◽  
Root Systems ◽  
P Uptake ◽  
Fine Root Biomass ◽  
Hydraulic Lift ◽  
K Uptake ◽  
Brassica Napus L ◽  
Root Size

The role of hydraulic lift in nutrient uptake from dry topsoil is unclear. Vertically-split root systems were used to measure hydraulic lift and phosphorus (P) and potassium (K) uptake at the rosette and flowering stages of two canola (Brassica napus L.) cultivars (Trigold and Boomer with small and large root systems, respectively) grown in soil low in P and K. Rubidium (Rb) was used as a tracer to examine K uptake from K fertiliser banded in dry topsoil. During vegetative growth, statistically significant hydraulic lift was measured, irrespective of cultivar root size or a specific nutrient (P or K) placed in the topsoil. The Rb tracer revealed significant amounts of K were absorbed from the dry soil, but at rates five-fold lower than from the moist soil. The water lifted could not prevent cessation of P uptake by Boomer and a reduction in P uptake by Trigold. During mid to late flowering, ion uptake from the dry topsoil was impeded despite the continuation of hydraulic lift up to 28 days after the topsoil was dried. Minimal fine root growth following topsoil drying (and reduction in fine root biomass in some treatments) appeared to be the primary cause of impeded nutrient uptake.

scholarly journals Application of phosphate solvent microbes and coffee skin compost to increase nutrient uptake of Robusta coffee plants in Andisols

2019 ◽  
Vol 6 (3) ◽  
pp. 500-505
Author(s):  
Mariani Sembiring ◽  
Benny Hidayat ◽  
Mukhlis Mukhlis ◽  
T. Sabrina
Keyword(s):  
Nutrient Uptake ◽  
Burkholderia Cepacia ◽  
N Uptake ◽  
P Uptake ◽  
Factor Ii ◽  
Plant P Uptake ◽  
Coffee Plants ◽  
The Right ◽  
Organic Coffee ◽  
Talaromyces Pinophilus

Coffee plants need phosphorus nutrients for growth and fertilization in high quantities. Andisol has a verylow availability of P. Efforts that can be made to increase the availability of P are by utilizing phosphatesolvent microbes and coffee skin compost. The purpose of this study was to obtain the right type of microbialphosphate solvent and organic coffee skin ingredients in increasing the availability and growth of coffeeplants in Andisol affected by the eruption of Mt. Sinabung. This study used a factorial randomized blockdesign (RBD) consisting of 3 replications. Factor I: (Microbial Phosphate Solvents) M0 = Withoutapplication, M1 = Burkholderia cepacia, M2 = Talaromyces pinophilus, M3 = Burkholderia cepacia +Talaromyces pinophilus. Factor II Organic ingredients of coffee skin compost are K0 = without organicmatter, K1 = 75 g, K2 = 150 g, K3 = 225 g. The results of the study showed that B.cepacia + T.Pinophilus+ Mycorrhiza (M4) treatment can increase nutrient uptake of N, P and K of plants up to 12.3%, can increaseplant uptake of P up to 18.84%, increase uptake of plant K up to 19.53%. The treatment of 225g of coffeehusk compost (K3) can increase plant N nutrient uptake by 7.65%, plant P uptake to 26.11% and plant Kuptake up to 14.12%. M4K3 application can increase N uptake up to 53.28%, P uptake up to 98.56% andincrease K uptake of plants up to 56.45%. in general, the best treatment is M4K3.

Effect of sowing dates, mulching and seed rates on nutrient uptake and productivity of soybean in sub - humid Punjab, India

2018 ◽  
Author(s):  
R. Sikka ◽  
J. S. Deol ◽  
Jagmohan Kaur ◽  
D. Singh
Keyword(s):  
Nutrient Uptake ◽  
N Uptake ◽  
Sowing Date ◽  
Silty Clay ◽  
K Uptake ◽  
Total N ◽  
Yield Attributes ◽  
Available N ◽  
Seed Rate ◽  
Sowing Dates

A field experiment was conducted for three years to study the effect of sowing dates, mulching and seed rates on nutrient uptake and productivity of soybean under irrigated conditions in sub-humid Punjab on a silty clay loam soil which was low in available N, medium in available P and available K. The experiment was conducted in a split plot design with the combination of three sowing dates and mulch in main plots and three seed rates in sub-plots with three replications on fixed site. The results revealed that sowing on June 30 and mulching recorded the highest number of pods plant-1.There was no significant influence of seed rates on yield attributes. Seed yield also remained at par under different sowing dates, mulching and seed rate treatments. Stover yield however, was significantly higher under the earlier sowing dates and mulching. Highest total N uptake was observed under June 30 sowing date whereas total P and K uptake was highest in May 20 sowing date. No significant effect of mulching was observed on total N and K uptake. Among seed rates maximum total N uptake was observed under 75 kg seed ha-1. The results suggest that soybean performed better when sown with 60 kg seed rate ha-1 on June 30 and mulched with wheat straw.

scholarly journals Nutrient Uptake, Partitioning, and Production of Two Subspecies of Brassica using Different Solution Concentrates in Floating Hydroponics Systems

2020 ◽  
Vol 1 (2) ◽  
pp. 86
Author(s):  
Mercy Bientri Yunindanova ◽  
Subuh Pramono ◽  
Muhammad Hamka Ibrahim
Keyword(s):  
Plant Growth ◽  
Nutrient Uptake ◽  
Brassica Rapa ◽  
Growth Parameters ◽  
Block Design ◽  
N Uptake ◽  
Solution Concentration ◽  
P Uptake ◽  
Nutrient Concentrations ◽  
Pak Choi

In this study, we investigated nutrient uptake, partitioning, and production of two subspecies of Brassica in response to nutrient solution concentration in floating hydroponics systems. This study used a complete randomized block design factorial with two factors. The first factor was two Brassica subspecies consisting of Brassica rapa subsp. chinensis (Pak Choi) and Brassica rapa var. parachinensis (Choy Sum). The second factor was the concentration level consisting electrical conductivity (EC) 1 mS cm-1 and EC 2 mS cm-1. The results indicated the absorption rates of nitrogen (N,) phosphorus (P), and potassium (K) in leaves, roots and stems were similar in both nutrient concentrations. In general, all combination treatments resulted more accumulation of P followed by N, also K as the smallest proportion. P was mostly accumulated at the root and leaves (19.60 to 25.90 mg g-1), while majority of N was collected in leaves ranging from 18.00 to 24.30 mg g-1. The highest K content was detected in the stem (10.70 to 14.20 mg g-1). P uptake was 1.69 to 2.47 times higher than K, while N uptake was 1.44 to 2.04 times higher than K. Both two subspecies and concentrations performed no significant effects on nutrient uptake. Although same species, the plant growth parameters of Pak Choi and Choy Sum are very different including plant height, leaves number, width and length. Both two subspecies adapted well with both concentrations. However, significant differences were recorded in the combination of subspecies and nutrient concentration on plant growth and production parameters. To achieve higher market portion, Pak Choi would be more suitable to be planted on EC 1 mS cm-1, while Choy Sum was favorable at both concentrations.

scholarly journals Fertilizer values of composts as affected by plant materials and composting duration on maize (Zea mays) performance

Agro-Science ◽  
2021 ◽  
Vol 20 (1) ◽  
pp. 87-94
Author(s):  
A.F. Komolafe ◽  
C.O. Adejuyigbe ◽  
O.A. Babalola ◽  
A.A. Soretire ◽  
C.O. Kayode
Keyword(s):  
Field Experiments ◽  
Block Design ◽  
N Uptake ◽  
Chemical Properties ◽  
Growth Yield ◽  
Nutrient Release ◽  
P Uptake ◽  
Cow Dung ◽  
K Uptake ◽  
Plant Materials

Chemical properties and nutrient release pattern from compost are influenced by composted plant materials (CPM) and duration of composting (DC). The following plant materials; guinea grass (GGC), tridax weed (TWC), siam weed (SWC) and maize stover (MSC) were composted with cow dung. Pot and field experiments were carried out to evaluate the effect of these CPM on growth yield performance of maize, and the properties of soil after harvest. The pot trial was a 4 × 5 factorial experiment laid out in a completely randomized design (CRD) with three replicates while the field experiment was a 4 × 3 factorial arranged in a randomized complete block design (RCBD), replicated three times. Data collected on initial and soil properties after harvest, growth, dry matter yield (DMY), nutrient uptake and yield of maize were subjected to analysis of variance and means separated using Duncan Multiple Range Test. Results showed that MSC compost had the highest N content while GGC had the highest K. Phosphorus (P) content was similar for all the CPMs. Results of pot experiment showed that maize growth was higher (p ≤ 0.05) with GGC, TWC and MSC of 3, 4 and 5 months DC. The DMY and P-uptake increased with increasing DC. On field trial, plants height was similar for all the CPM that received MSC and GGC gave similar highest DMY which were significantly higher than TWC and SWC. MSC gave the highest N-uptake while GGC treated plant had the highest P and K uptake. Grain yield was significantly higher for MSC (1.80 t ha–1) than SWC and Control but similar to GGC (1.37 t ha–1) and TWC (1.18 t ha–1). Compost application at 20 t ha–1 significantly increased cob weight, N and K uptake of maize compared to control. Application of CPM improved final soil available P which increased with DC and rate of application of different CPM. Therefore, CPM and DC have great potentials in influencing compost quality and should be considered in formulating compost fertilizer in organic farming.

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