nitrogen · Quality: protein · Sorghum

Effect of nitrogen Application on the Protein Quality of Sorghum Vulgare Pers · 1972

• positive
  Nitrogen application increased total protein in sorghum grain.
• no effect
  Nitrogen did not effectively improve the protein quality of sorghum grain.

Distribution of nitrogen in different plant parts of sorghum and amino acid composition of its grain as affected by foliar application of urea · 1975

• positive
  The spraying increased sorghum grain crude protein and root, stem and leaf nitrogen contents significantly.
• negative
  Grain protein percentages of lysine, leucine and tryptophan decreased after spraying.

Effect of nitrogen and plant population on hybrid sorghum (CSH-1). 1. Grain yield and its components · 1980

• positive
  Raising nitrogen from 50 to 150 kg/ha increased grain protein content from 7.53 to 8.95%.

  compared with 50

The application of Cate and Nelson's method for predicting nitrogen critical level of sorghum · 1981

• positive
  Nitrogen application increased grain protein content.

EFFECT OF DIFFERENT LEVELS OF N AND DIFFERENT SOURCES AND RATES OF P ON GROWTH, YIELD AND CRUDE PROTEIN IN FORAGE SORGHUM · 2000

• positive
  Increasing N and P levels increased fresh and dry forage yield and crude protein content of forage sorghum.

Yield and quality of multi-cut forage sorghum (Sorghum sudanense) as influenced b y integrated nitrogen management · 2001

• positive
  Urea plus farmyard manure gave significantly higher green forage yield than most other nutrient treatments.

  compared with other treatments

• positive
  Urea and castor cake with Azospirillum inoculation gave maximum crude protein yield.
• positive
  Urea plus farmyard manure increased crude protein yield by 19.4 - 20.0% over urea alone.

  compared with application of 100 kg Nlha through urea

EVALUATION OF PROMISING SORGHUM GENOTYPES FOR THEIR YIELD AND QUALITY · 2004

• positive
  Application of 80 kg N + 40 kg P2O5 per hectare gave better protein content in sorghum.

SUMMER FORAGE SORGHUM YIELD, PROTEIN AND PRUSSIC ACID CONTENTS AS AFFECTED BY PLANT DENSITY AND NITROGEN TOPDRESSING · 2004

• positive
  Higher nitrogen rates increased crude protein percentage.

Influence of Nitrogen Levels and Application Methods on Yield and Quality of Sorghum · 2008

• positive
  Grain protein content increased linearly with N application and peaked at 120 kg N/ha in both methods

Effects of Different Levels of Nitrogen Fertilizer on Accumulating Regulation of Quality Characters in Forage Sorghum Stalk · 2009

• positive
  Under four nitrogen levels, crude protein and crude fat content continuously increased in forage sorghum stalk.

Effect of Integrated Nitrogen Management on Forage Yield of Multicut Sorghum, Available Nitrogen and Microbial Count in the Soil · 2010

• positive
  The mixed chemical and organic N applications significantly increased crude protein content against other treatments.

  compared with other treatments

Effect of Organic Fertilizer Application on Yield and Quality in Sweet Sorghum · 2011

• positive
  More urea significantly raised crude protein content and height growth rate.

Effects of Fertilization on Quality Characters of Continuous Cropping Sweet Sorghum Stem · 2011

• positive
  When sweet sorghum was the preceding crop, the fertilizer mix of 600 kg/hm2 continuous-cropping fertilizer with N 450, P 450 and K 150 kg/hm2 gave the highest brix and crude protein content.

Effect of Nitrogen Fertilization and Cover Cropping Systems on Sorghum Grain Characteristics · 2013

• positive
  Sorghum protein content rose with nitrogen rate.
• no effect
  Nitrogen rate did not affect sorghum protein digestibility or starch granule size distribution.

cited by 2 papers here

MORPHOLOGICAL TRAITS, YIELD AND CHEMICAL COMPOSITION OF FORAGE SORGHUM GENOTYPES, GROWN UNDER DIFFERENT NITROGEN RATES · 2013

• positive
  Nitrogen increased biomass total protein content.

cited by 1 paper here

Production and nutritional value of sorghum and black oat forages under nitrogen fertilization · 2013

• positive
  Sorghum crude protein peaked at nitrogen rates of 349 and 328 kg per hectare.

Effect of Nitrogen levels on sweet sorghum feedstuff for ruminants to assess the crude protein and in vitro dry matter digestibility (IVDMD). · 2013

• positive
  Dry matter and crude protein yields and crude protein percent improved through 180 kg N/ha.

Application of Biological and Chemical Fertilizers on some Qualitative and Quantitative Traits in Forage Sorghum · 2013

• positive
  The urea treatment gave the highest percentage of protein relative to control.

  compared with control

Effect of Nitrogen Source and Concentration on Growth and Activity of Nitrogen Assimilation Enzymes in Roots of a Moroccan Sorghum Ecotype · 2016

• positive
  High ammonium or nitrate increased sorghum root protein content.

Grain yield N uptake and crude protein production in winter sorghum [Sorghum bicolor L Moench] as influenced by tillage practices and integrated nutrient management in the Vertisols of semiarid tropical India 121 · 2016

• positive
  Fifty kilograms nitrogen per hectare increased pooled crude protein production by 64%.

  compared with control

N, P or K doses on the dry matter and crude protein yield in maize and sorghum for silage · 2017

• positive
  N doses increased crude protein yield in sorghum.
• positive
  N doses increased protein concentration in sorghum.

Effects of urea addition on the fermentation of sorghum (Sorghum bicolor) silage · 2018

• positive
  Urea linearly increased crude protein.

cited by 1 paper here

Agronomic Biofortification of Fodder Sorghum with Zinc under Different Levels of Nitrogen · 2018

• positive
  Nitrogen treatment increased crude protein by 7.5% over control.

  compared with control

• positive
  Zinc and nitrogen increased crude protein percentage and plant zinc content.

Influence of Fertilizing with Nitrogen Fertilizer on the Content of Amino Acids in Sweet Sorghum Grain · 2018

• positive
  Later second N50 fertilization increased sweet sorghum grain protein content more effectively.

Evaluation Effect of Different level of Nitrogen and Cutting Height on Morphological Traits, Seed Protein Content and Prussic Acid Concentration of Sorghum ( Sorghum bicolor L., cv. Speed feed) · 2019

• positive
  The 400 kg.ha-1 urea and 7cm cut treatment gave the maximum seed protein concentration in sorghum (10.90%).

  compared with 200 kg.ha-1 urea and 17cm of cutting height

Organoleptic and proximate characteristics of parching sorghum genotypes in response to management of nitrogen · 2019

• positive
  Application of 125% RDN through urea was significantly superior for crude protein, ether extract, and total ash.

  compared with other nitrogen management treatments

• positive
  Application of 125 per cent RDN ha-1 through urea significantly raised non-reducing sugar, total sugar, and protein content relative to other nitrogen treatments.

  compared with other nitrogen management treatments

EFFECT OF NITROGEN ON THE METABOLIC ENZYME ACTIVITY OF LEAVES, PROTEIN CONTENT AND YIELD OF SORGHUM (SORGHUM BICOLOR [L.] MOENCH) IN NORTHERN CHINA · 2021

• positive
  The 200 kg nitrogen rate highest protein content.

Varietal Response to Graded Levels of Nitrogen and Bio-fertilizers on Forage Yield of Sorghum (Sorghum bicolor L. Moench) during the Summer Season · 2022

• positive
  Nitrogen at 75 kg ha-1 produced higher green forage, dry matter and crude protein yields.

Effects of Limited Irrigation and Nitrogen Rate on the Herbage Yield, Water Productivity, and Nutritive Value of Sorghum Silage · 2022

• positive
  Increasing nitrogen raised crude protein and metabolizable energy.

Effect of N on Growth, Antioxidant Capacity, and Chlorophyll Content of Sorghum · 2022

• positive
  Increasing nitrogen enhanced leaf protein content in both cultivars across 2017 and 2018.

cited by 1 paper here

Effect of foliar application of plant bio-regulators in mitigating drought effects on productivity and quality of single cut fodder Sorghum in Punjab, India · 2022

• positive
  Urea and KNO3 sprays gave significantly higher crude protein content in the fodder than other foliar sprays.

  compared with other foliar sprays

Azot ve Potasyum Yönetimi ile Tatlı Sorgum (Sorghum bicolor (L.) Moench var. saccharatum)’da Verimlilik ve Kalitenin İyileştirilmesi · 2022

• positive
  Increasing nitrogen increased plant height, dry matter yield, crude protein content, and silage pH compared with N0-K0.

  compared with N0-K0

cites 1 paper here

Assessing the Efficiency of Different Nitrogen Fertilization Levels on Sorghum Yield and Quality Characteristics · 2023

• positive
  Higher nitrogen supply significantly raised protein content of sorghum yield.

cites 1 paper here

Impact of in‐season split application of nitrogen on intra‐panicle grain dynamics, grain quality, and vegetative indices that govern nitrogen use efficiency in sorghum · 2023

• positive
  Applying 31 kg N ha −1 at planting, panicle initiation and booting was optimum for increasing sorghum protein content.

cites 1 paper herecited by 1 paper here

Optimizing Fodder Sorghum Quality: Unveiling the Impact of Varied Nitrogen Levels in Multicut Genotypes · 2024

• positive
  Applying 200 kg N ha-1 significantly increased crude protein yield to 554 kg ha-1.

  compared with lower nitrogen levels

Effect of Tillage and Nitrogen Rates on Fodder Productivity and Juice Quality of Sweet Sorghum (Sorghum bicolar L.) in Himalayan Foothills of India · 2024

• positive
  Crude protein yield was 48.5% higher under 120 kg N/ha than under control.

  compared with control

• positive
  Crude protein content was 4.9% higher under 120 kg N/ha than under control.

  compared with control

Grain protein and amino acid dynamics in sorghum with in‐season split‐nitrogen application · 2024

• positive
  High nitrogen treatments significantly increased grain protein over lower nitrogen treatments.

  compared with all the lower N treatments

cites 2 papers here

Effect of N fertilizer rates and biofertilizer on productivity and quality of fodder sorghum · 2024

• positive
  Higher nitrogen rate increased crude protein percentage.

Morphological and nutritional responses of sorghum to variable irrigation levels and nitrogen doses · 2025

• positive
  Irrigation and nitrogen increased protein content, reaching 11.85% at 100% irrigation and 270 kg ha ⁻ ¹ N.

Nutritional evaluation of sorghum silage forage AGRI 002E in natura and ensiled with additives in the Tropics · 2025

• positive
  Urea raised crude protein and in vitro digestibility of crude protein.

  compared with control

cites 1 paper here

Effect of splitting of nitrogen dose and cutting management on yield, quality and economics of fodder sorghum (Sorghum bicolor (L.) Moench) · 2025

• positive
  The 160 kg nitrogen split treatment gave maximum crude protein yield of 2.91 q per hectare.

Forage Production and Nutritional Quality of · 2025

• positive
  Combined urea and AMF application improved crude protein, fat and fiber contents.

Yield, Quality and Nutrient uptake of Fodder Sorghum Influenced by Nitrogen Management and Foliar nutrition in Southern Laterites of Kerala · 2025

• positive
  100% RDN with foliar nano urea 0.4% (T5) gave higher crude protein content and crude protein yield in fodder sorghum.