scholarly journals Variations in biomass, nutrient contents and nutrient use efficiency among Chinese fir provenances

2011 ◽  
Vol 60 (1-6) ◽  
pp. 95-105 ◽  
Author(s):  
Pengfei Wu ◽  
Mulualem Tigabu ◽  
Xiangqing Ma ◽  
Per Christer Odén ◽  
Youlan He ◽  
...  
Keyword(s):  
Southern China ◽  
Nutrient Use Efficiency ◽  
Nutrient Content ◽  
Chinese Fir ◽  
Total Biomass ◽  
Improvement Program ◽  
Nutrient Contents ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Phosphorus And Potassium

Abstract A provenance trial involving 16 Chinese fir provenances was established in southern China in 1979, and biomass, nutrient content and nutrient use efficiency were assessed at the age of 23. One-way analysis of variance revealed significant inter-provenance variation (p<0.0001) in measured variables. The mean total biomass ranged from 98.8±5.3 to 163.3±4.2 t ha−1, and the stemwood accounted for 47–65% of the total biomass, followed by roots (11–24%), stembark (7.4–13.7%), and needles and branches (< 10 %). Much of the nitrogen, phosphorus and potassium were stored in the needles, although the concentration varies among provenances. Whole-tree nutrient use efficiency varied from 115.4±2.1 to 180.2±1.02 g g−1, while efficiency in stemwood production ranged from 53.9±3.1 to 106.3±1.1 g g−1. Provenances did not display consistent variation in all measured variables, suggesting the need for multiple criteria for selection in future tree improvement program. In conclusion, the study reveals the existence of considerable variation in biomass production and nutrient use efficiency among Chinese fir provenances that can be exploited for selecting desirable genotypes for enhancing productivity of Chinese fir plantations.

Recent advancements of molecular breeding and functional genomics for improving nitrogen-, phosphorus- and potassium-use efficiencies in wheat.

2021 ◽  
pp. 170-196
Author(s):  
T. Maharajan ◽  
G. Victor Roch ◽  
S. Antony Ceasar
Keyword(s):  
Climate Change ◽  
Functional Genomics ◽  
Molecular Breeding ◽  
Nutrient Use Efficiency ◽  
Essential Nutrients ◽  
Impact Of Climate Change ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Abstract This chapter discusses the importance and implications of nitrogen, phosphorus and potassium as essential nutrients and the application of molecular breeding and functional genomics for improving nutrient-use efficiency in wheat are presented. Improvement of nutrient-use efficiency through genetic modification and impact of climate change on nitrogen, phosphorus and potassium management were also discussed.

scholarly journals EFICIÊNCIA DE UTILIZAÇÃO DE NUTRIENTES PELO EUCALIPTO EM SISTEMA AGROSSILVIPASTORIL

Nativa ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 260
Author(s):  
Kamile Zompero Araujo ◽  
Charlote Wink ◽  
Anderson Lange ◽  
Igor Duarte Andrade Moreira ◽  
Rafaella De Angeli Curto
Keyword(s):  
Nutrient Use Efficiency ◽  
Tree Density ◽  
Total Biomass ◽  
Probability Level ◽  
Typical Pattern ◽  
Residual Biomass ◽  
Nutrient Use ◽  
Nutrient Stock ◽  
Use Efficiency ◽  
The Mean

O objetivo do estudo foi avaliar o efeito das configurações de plantio do sistema agrossilvipastoril sobre a eficiência de utilização de nutrientes nos diferentes compartimentos da biomassa do eucalipto. A EUN foi obtida pela razão entre o estoque da biomassa e dos nutrientes, avaliada pela média, desvio padrão (DP) e coeficiente de variação (CV) e pelo teste de Kruskal-Wallis com comparação entre arranjos pelo teste de Dunn (5% de probabilidade). A média de EUN dos macronutrientes variou de 49,40 a 3.257 kg kg-1 (DP: 2,78 a 528,19 e CV: 2,08 a 33,44%) e de 30.376,00 a 192.125 kg kg-1 para os micronutrientes (DP: 1,32 a 23.336,50 e CV: 0,004 a 28,41%). A magnitude decrescente da EUN da biomassa total foi P> S> K> Mg> N> Ca, na biomassa residual foi de S> P> Mg> K> Ca> N, nos galhos grossos foi de S> P> Mg> K> N> Ca, e na madeira e casca foi de P> S> K> Mg> N> Ca. Portanto, apesar de não se observar o padrão típico de aumento da EUN com o aumento da densidade de árvores nas faixas de cultivo do ILPF, o sistema agrossilvipastoril influenciou na variabilidade da EUN, sendo que variações desse padrão podem ocorrer, dependendo do compartimento da biomassa e do nutriente avaliado.Palavras-chave: ILPF; EUN; biomassa. NUTRIENT USE EFFICIENCY OF EUCALYPTUS IN CROP-LIVESTOK-FOREST SYSTEM  ABSTRACT: The aim of the study was to evaluate the effect of the agrosilvipastoral system planting configuration on the nutrient use efficiency (NUE) of the different compartiments of eucalyptus biomass. The NUE was obtained by the ratio between biomass and nutrient stock, evaluated by the mean, standard deviation (SD) and coefficient of variation (CV) and by the Kruskall-Wallis test, at a 5% probability level with the evaluated weights by Dunn’s test. The EUN mean of the macronutrients ranged from 49 to 3.250 (SD: 2,95 to 4.258,72 and CV: 2,08 a 26,20%) and from 30.370 to 192.124 for micronutrientes (SD: 1,32 to 63.432,41 and CV: 0,02 to 20,14%). The decreasing magnitude of the NUE for the total biomass was P> S> K> Mg> N> Ca, for the residual biomass was S> P> Mg> K> Ca> N, for thick branches was S> P> Mg> K> N> Ca, and for the wood and the bark, was P> S> K> Mg> N> Ca.Therefore, although the typical pattern of EUN increase with increasing tree density in the CLF cultivation bands is not observed the agrosilvipastoral system influenced the variability of the EUN, and variations of this pattern may occur, depending on the biomass compartiment and the evaluated nutrient.Keywords: CLF System; NUE; biomass.

scholarly journals Effect of Different Approaches of Nutrient Application on Yield, Nutrient Uptake, Nutrient use Efficiency and Economics of Carrot

2021 ◽  
pp. 173-179
Author(s):  
N. Bhavya ◽  
P. K. Basavaraja ◽  
H. Mohamed Saqeebulla ◽  
G. V. Gangamrutha
Keyword(s):  
Nutrient Uptake ◽  
Block Design ◽  
Nutrient Use Efficiency ◽  
Integrated Approach ◽  
Cost Ratio ◽  
Daucus Carota L ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Phosphorus And Potassium ◽  
Absolute Control

A field experiment was conducted during Kharif 2017 at Devanahalli village, Bengaluru rural district of Karnataka to evaluate the effect of different approaches of nutrient application on yield,  nutrient uptake and use efficiency by carrot (Daucus carota L.). The experiment was laid out in randomized complete block design replicated thrice with eight treatments comprisingT1 (STCR target 20 tha-1  through inorganics), T2 (STCR target 20 tha-1  through integrated), T3 (STCR target 25 tha-1  through inorganics), T4 (STCR target 25 tha-1  through integrated), T5 (RDF (75: 63: 50) N, P2O5, K2O kg ha-1+ FYM), T6 (LMH /STL + FYM), T7 (Farmers practice (92.6:159:0) N, P2O5 kg ha-1 + FYM), T8 (Absolute control).Results revealed that significantly higher root (27.51 t ha-1)  and shoot (16.48 t ha-1) yield were recorded in STCR target of 25 t ha-1 through   integrated approach. Similarly, higher total uptake of nitrogen, phosphorus and potassium  (297.07 kg, 57.48 kg and 253.81 kg ha-1, respectively) by carrot and the higher apparent recovery   efficiency (0.35, 0.08 and 0.58 kg kg-1 of N, P2O5 and K2O, respectively) and agronomic nutrient use efficiency (26.10, 12.37 and 48.25 kg kg-1 of N, P2O5 and K2O, respectively) were recorded in the same STCR target of 25 t ha-1 through integrated approach. However, the better profit was recorded (value cost ratio: 43.30) in STCR target of 25 t ha-1 through inorganics. The STCR target of 25 t ha-1 through integrated approach had the most positive effect for the carrot cultivation.

scholarly journals ​Nutrient (Nitrogen, Phosphorous and Potassium) Uptake Capacity and Efficiency of different Elite Rice (Oryza sativa L.) Varieties under Delayed Planting Conditions

2021 ◽  
Author(s):  
Santrupta Manmath Satapathy ◽  
V.K. Srivastava ◽  
Suraj Gond ◽  
Prasanta Kumar Majhi
Keyword(s):  
Oryza Sativa ◽  
Agricultural Research ◽  
Oryza Sativa L ◽  
Nutrient Use Efficiency ◽  
Nutrient Content ◽  
Uptake Capacity ◽  
Rice Varieties ◽  
Nutrient Use ◽  
Main Plot ◽  
Use Efficiency

Background: The present investigation was concentrated to determine the nutrient uptake capacity of different varieties of rice (Oryza sativa L.) under delayed planting condition. The purpose of the study is to evaluate the nutrient content in straw and grain in different varieties of rice to understand the nutrient acquisition capacity. Methods: The experiment was conducted during kharif-2018 in a split plot design with three replications at Agricultural Research Farm, BHU, Varanasi with a combination of four rice varieties (HUR-3022, DRR-44, HUR-4-3 and HUR-105) as subplot factor and three dates of planting (06/09/2018, 13/08/2018 and 20/08/2018) as main-plot factor. Result: Among the varieties, DRR-44 was observed efficient for N, P and K absorption under timely planting conditions and recorded higher N content (1.01%) than HUR-3022 (0.91%) and HUR-105 (0.86%). The P (0.45%) and K (0.29%) content were observed highest for the variety DRR-44 on the first date of planting (06/08/2018). Maximum N, P and K uptake by grain and straw were recorded in DRR-44 followed by HUR-3022 and HUR-105. DRR-44 was also the highest grain and straw yielder. Thus, improved varieties of rice with higher nutrient use efficiency should be the priority for quality and higher yield of straw and grain of the crop.

scholarly journals Growth and Nutrient Partitioning of Containerized Malus trilobata Schneid. and Acer syriacum Boiss. and Gaill. Under Two Fertigation Regimes

HortScience ◽  
2008 ◽  
Vol 43 (6) ◽  
pp. 1746-1752 ◽  
Author(s):  
Hala G. Zahreddine ◽  
Daniel K. Struve ◽  
Salma N. Talhouk
Keyword(s):  
Nutrient Uptake ◽  
Ex Situ Conservation ◽  
Nutrient Use Efficiency ◽  
Ex Situ ◽  
Mineral Nutrient ◽  
Fertilizer Rate ◽  
Nutrient Use ◽  
Use Efficiency ◽  
Phosphorus And Potassium ◽  
Container Production

The native flora of Lebanon is threatened. As part of an ex situ conservation strategy, this study was conducted to determine if Malus trilobata (Schneid.) and Acer syriacum (Boiss. and Gaill.), two native Lebanese trees, were amenable to container production. Therefore, these species' growth and nitrogen, phosphorus, and potassium uptake efficiency and distribution under two fertilizer rates were studied. Malus trilobata seedlings were obtained from seeds collected from two mother trees, whereas Acer syriacum seeds were collected from a single tree. Two-year-old seedlings raised from these seeds were planted in 11-L containers in a 3:1 pine bark:compost substrate. Half the seedlings within each source and species were assigned to either 25 or 100 mg·L−1 N from 21N–3.1P–5.9K water-soluble fertilizer treatments. Seedlings of both Malus trilobata sources grown under 25 mg·L−1 N were taller than those grown at 100 mg·L−1 N. Nitrogen loading occurred in plants of Malus trilobata under the high fertilizer rate, although total plant N, phosphorus, and potassium content was unaffected by fertilizer rate, because larger seedlings had lower nutrient concentrations. There were significant differences in growth among the two Malus trilobata seed sources, but there were no differences in mineral nutrient uptake or nutrient use efficiency. Growth, mineral nutrient uptake, and nutrient use efficiency of Acer syriacum seedlings were unaffected by fertilizer rate. Malus trilobata and Acer syriacum seedlings are amenable to container production. Using container production for these species with subsequent transplanting into managed landscapes might be a viable ex situ conservation method. Further studies are needed.

scholarly journals Effects of Selected Functional Bacteria on Maize Growth and Nutrient Use Efficiency

2020 ◽  
Vol 8 (6) ◽  
pp. 854 ◽  
Author(s):  
Amelia Tang ◽  
Ahmed Osumanu Haruna ◽  
Nik Muhamad Ab. Majid ◽  
Mohamadu Boyie Jalloh
Keyword(s):  
Plant Growth ◽  
Organic Fertilizer ◽  
Nutrient Use Efficiency ◽  
Nutrient Content ◽  
Chemical Fertilizer ◽  
Nutrient Use ◽  
Chemical Fertilization ◽  
Plant Growth Promoting ◽  
Use Efficiency ◽  
Growth Promoting

Plant growth-promoting rhizobacteria (PGPR), which include isolates from genera Paraburkholderia, Burkholderia and Serratia, have received attention due to their numerous plant growth-promoting mechanisms such as their ability to solubilize insoluble phosphates and nitrogen-fixation. However, there is a dearth of information on the potential plant growth-promoting effects of these three groups of bacteria on non-legumes such as maize. This study determined the influences of the aforementioned strains on soil properties, maize growth, nutrient uptake and nutrient use efficiency. A pot trial using maize as a test crop was done using a randomized complete block design with 7 treatments each replicated 7 times. The treatments used in this study were: Control (no fertilizer), chemical fertilizer (CF), organic-chemical fertilizers combination without inoculum (OCF) and with inocula consisting of single strains [cellulolytic bacteria (TC), organic fertilizer and chemical fertilizer with N-fixing bacteria (TN), organic fertilizer and chemical fertilizer with P-solubilizing bacteria (TP)) and three-strain inocula (TCNP), respectively. The variables measured included plant growth and nutrient content, soil nutrient content and functional rhizospheric bacterial populations. Paraburkholderia nodosa NB1 and Burkholderia cepacia PB3 showed comparable effects on maize biomass and also improved N and P use efficiencies when compared to full chemical fertilization. Nitrogen-fixing rhizobacteria had a positive effect on above-ground biomass of maize. Paraburkholderia nodosa NB1 improved soil total C and organic matter contents, besides being the only bacterial treatment that improved K use efficiency compared to OCF. The results suggest that P. nodosa NB1 and B. cepacia PB3 have potential usage in bio-fertilizers. In contrast, treatments with Serratia nematodiphila C46d and consortium strains showed poorer maize nutrient uptake and use efficiency than the other single strain treatments. Bacterial treatments generally showed comparable or higher overall N and P use efficiencies than full chemical fertilization. These findings suggest that at least half the amounts of N and P fertilizers could be reduced through the use of combined fertilization together with beneficial bacteria.

scholarly journals Nutrient Budgeting of Primary Nutrients and Their Use Efficiency in India

2020 ◽  
pp. 92-114 ◽  
Author(s):  
Gayatri Sahu ◽  
Shreya Das ◽  
Samanyita Mohanty
Keyword(s):  
Nutrient Use Efficiency ◽  
Nutrient Budget ◽  
Chemical Fertilizers ◽  
Nutrient Use ◽  
Nutrient Surplus ◽  
Use Efficiency ◽  
Phosphorus And Potassium ◽  
Fertiliser Use ◽  
The Right ◽  
Early Indication

The imbalanced use of fertilizers in India is evident from the fact that the current ratio of nitrogen, phosphorus and potassium in agricultural soil in several states is skewed towards nitrogen. This imbalance causes problems, right from stagnating or declining productivity to soil sickness, widespread deficiency of macro nutrients and micronutrients, and soil alkalinity and salinity. Eventually, it results in reduced efficiency of fertilisers, low yields and low profitability for farmers. Also, nitrogen pollution of surface and groundwater due to excessive fertiliser use has reached alarming levels in several states. Chemical fertilizers are currently the major emitters of nitrous oxide gas, a potent greenhouse gas and ozone depleting substance. Nutrient budget is an important tool to provide an early indication of potential problems arising from nutrient surplus and nutrient deficit. Balanced use of all types of fertilizers, including traditional organic manures and biofertilizers are needed to bring about a change in the prevailing regime that encourages excessive use of chemical fertilizers. However, meeting future food security targets in an over-populated developing country like India, needs to increase the nutrient use efficiency. This ultimately leads to site-specific need-based nutrient application and minimizing nutrient losses from fields. This leads to the 4R Nutrient Stewardship concept, applying the Right Source of nutrients, at the Right Rate, at the Right Time and in the Right Place. This paper provides a historical overview of the nutrient budgeting efforts and systematically reviews major challenges, opportunities, in defining, quantifying, and applying nutrient budgets and improving nutrient use efficiency.

Tomato Production in Florida Using Fertigation Technology

EDIS ◽  
2020 ◽  
Vol 2020 (5) ◽  
Author(s):  
Mary Dixon ◽  
Guodong Liu
Keyword(s):  
Nutrient Use Efficiency ◽  
Health Benefits ◽  
Vegetable Crop ◽  
High Demand ◽  
Tomato Production ◽  
Nutrient Use ◽  
Use Efficiency

Tomato is in high demand because of its taste and health benefits. In Florida, tomato is the number one vegetable crop in terms of both acreage and value. Because of its high value and wide acreage, it is important for tomato production to be efficient in its water and nutrient use, which may be improved through fertigation practices. Therefore, the objective of this new 7-page article is to disseminate research-based methods of tomato production utilizing fertigation to enhance yield and nutrient use efficiency. Written by Mary Dixon and Guodong Liu, and published by the UF/IFAS Horticultural Sciences Department.https://edis.ifas.ufl.edu/hs1392

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