scholarly journals Dates of Sowing and Residual Nitrogen Levels on Growth, Yield and Uptake in Sorghum under Zero-till Conditions in Coastal Belts of India

2021 ◽  
pp. 125-132
Author(s):  
B. Vibhajam Sagal Kiran ◽  
V. R. K. Murthy ◽  
M. Sree Rekha ◽  
P. R. K. Prasad
Keyword(s):  
Nitrogen Uptake ◽  
Andhra Pradesh ◽  
Growth Yield ◽  
Zero Tillage ◽  
Early Date ◽  
Nitrogen Levels ◽  
Residual Nitrogen ◽  
Agricultural College ◽  
Residue Levels ◽  
College Farm

A field experiment was conducted during rabi seasons of 2017-18 and 2018-19 at College farm, Agricultural College, Bapatla, situated at 8 km away from the Bay of Bengal in the Krishna Agro-climatic Zone of Andhra Pradesh state of India to study the influence of dates of sowing and residue levels of nitrogen on growth, yield and uptake of sorghum under zero- till conditions in coastal rice fallows. The experiment was designed in RDB with factorial concept and replicated thrice. The treatments consisted of three dates of sowing (Factor-1): S1: 49 MW (5th December); S2: 50 MW (15th December); S3: 52 MW (25th December) and four residual nitrogen levels (Factor-2) applied to the previous rice crop: N1-60 kg, N2-80 kg, N3-100 kg and N4-120 kg N ha-1. Sorghum was grown as a residual crop under zero tillage in rice fallows. Significant higher improvement in drymatter (10395 and 10269 kg ha-1), length of spike (24.8 and 24.5 cm), grain (3839 and 3602 kg ha-1) and stover yields (7446 and 7298 kg ha-1) and nitrogen uptake by grain (51.9 and 42.9 kg N ha-1) and stover (42.0 and 39.9 kg N ha-1) was recorded in early date of sowing i.e. 49 MW in both the seasons 2017-18 and 2018-19, respectively, and among the residue nitrogen levels 120 kg N ha-1 showed highest drymatter (10661 and 10484 kg ha-1), length of spike (25.0 and 24.8 cm), grain (4078 and 3815 kg ha-1) and stover yields (7518 and 7443 kg ha-1) and nitrogen uptake by grain (54.6 and 46.6 kg N ha-1) and stover (44.3 and 42.1 kg N ha-1) compared to other nitrogen levels in both the seasons. Based on above results, early sowing of sorghum with high residue nitrogen levels could be recommended to small and marginal farmers in coastal belts of India for higher productivity.

Effect of levels of irrigation and nitrogen on growth, yield and nitrogen uptake in barley

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
ARUN KUMAR ◽  
SHASHANK TYAGI ◽  
SANTOSH KUMAR DUBEY ◽  
SANJAY KUMAR
Keyword(s):  
Nitrogen Uptake ◽  
Flag Leaf ◽  
Growth Yield ◽  
Rabi Season ◽  
Straw Yield ◽  
Leaf Stage ◽  
Nitrogen Levels ◽  
Four Levels ◽  
Nitrogen Treatments ◽  
Plot Design

A field experiment was conducted during rabi season at research farm of CS Azad University of Agriculture and Technology, Kanpur, U.P. with the objective to study the effect of irrigation and nitrogen levels on growth, yield and nitrogen uptake by barley. The experiment was laid out in split plot design with three replications with treatments, comprising four levels of irrigation viz., I1= no irrigation, I2= one irrigation at tillering stage, I3= one irrigation at flag leaf stage and I4= two irrigations each at tillering and flag leaf stage in main plots and four nitrogen levels viz., N1= Control, N2= 30 kg ha-1, N3= 60 kg ha-1 and N4= 90 kg ha-1 in sub-plots. Results revealed that application of two irrigations first at tillering and second at flag leaf stage along with 90 kg nitrogen per hectare gives highest grain yield, straw yield, nitrogen content and nitrogen uptake by grain, straw and protein content as compared to other irrigations (no irrigation, one irrigation at tillering stage, one irrigation at flag leaf stage) and nitrogen treatments (0, 30 and 60 kg ha-1).

scholarly journals Yield Improvement and Nutrient Uptake of Little Millet (Panicum sumatrense) for Agronomic Interventions

2021 ◽  
pp. 1-9
Author(s):  
B. Himasree ◽  
S. Hemalatha ◽  
V. Sumathi ◽  
P. Sudhakar ◽  
K. V. Nagamadhuri
Keyword(s):  
Grain Yield ◽  
Nutrient Uptake ◽  
Field Experiments ◽  
Yield Improvement ◽  
Straw Yield ◽  
Nitrogen Levels ◽  
Little Millet ◽  
Agricultural College ◽  
College Farm

Field experiments were conducted during kharif, 2019 and kharif 2020 at S.V. Agricultural College Farm, Tirupati with three different times of sowing of little millet (second fortnight of June, first fortnight of July and second fortnight of July) in combination with three methods of establishment (Broadcasting, Sowing at 30 cm × 10 cm and transplanting 20 days old seedlings) and three nitrogen levels (20 kg N ha-1, 30 kg N ha-1 and 40 kg N ha-1). The results of the experiment revealed that among the three times of sowing, second fortnight of June sowings recorded higher grain yield, straw yield and nutrient uptake of little millet while lower values of these were obtained with July second fortnight sown crop during both the years of study. Transplanted little millet resulted in superior grain yield, straw yield and nutrient uptake compared to broadcasting and sowing at 30 cm × 10 cm. Maximum values of grain yield, straw yield and nutrient uptake were observed with application of 40 kg N ha-1 while minimum values of these parameters were obtained with application of 20 kg N ha-1. Transplanting little millet during second fortnight of June along with the application of 40 kg N ha-1 achieved higher grain and straw yield besides nutrient uptake by grain.

Influence of density, planting patterns and mulching on yield of- drip irrigated pigeonpea [Cajanus cajan (L.) Millsp]

2017 ◽  
Vol 51 (06) ◽  
Author(s):  
Y. M. Swathi ◽  
M. Srinivasa Reddy ◽  
G. Prabhakara Reddy ◽  
P. Kavitha
Keyword(s):  
Seed Weight ◽  
Andhra Pradesh ◽  
Block Design ◽  
Plastic Mulch ◽  
Yield Attributes ◽  
Yield Parameters ◽  
Randomized Block Design ◽  
Agricultural College ◽  
Stalk Yield ◽  
College Farm

A field experiment was conducted during late kharif season of the year 2016-17 at Agricultural College Farm, Mahanandi (Andhra Pradesh) to study the effect of density, planting patterns and mulching on yield, yield parameters of pigeonpea under drip irrigation. The study was laid out in randomized block design with nine treatments and three replications. The yield attributes viz., pods branch-1, pods plant-1, seeds pod-1 pod yield plant-1, hundred seed weight and seed yield were maximum with 120/60 cm × 20 cm as paired rows with plastic mulch in pairs. Higher stalk yield was noticed with spacing of 180/60 cm × 20 cm as paired rows with plastic mulch in pairs. Number of seeds pod-1 and hundred seed weight and harvest index of pigeonpea did not differ significantly among the treatments.

THE INFLUENCE OF NITROGEN-FIXING TREES AND FERTILIZER NITROGEN LEVELS ON THE GROWTH, YIELD AND NITROGEN UPTAKE OF COWPEA ON A RAINFED ALFISOL

2000 ◽  
Vol 36 (1) ◽  
pp. 41-50 ◽  
Author(s):  
G. SURESH ◽  
J. V. RAO
Keyword(s):  
Nitrogen Uptake ◽  
Growth Yield ◽  
Faidherbia Albida ◽  
Albizia Lebbeck ◽  
Nitrogen Fixing ◽  
Fertilizer Nitrogen ◽  
Plant Parts ◽  
Nitrogen Levels ◽  
Sole Crop ◽  
Nitrogen Fixing Trees

A field experiment was conducted to study the influence of 8- to 9-year-old nitrogen-fixing tree species (Faidherbia albida, Acacia ferruginea, Albizia lebbeck) and fertilizer nitrogen levels on yield and nitrogen uptake of intercropped cowpea (Vigna unguiculata). Grain and dry fodder yields of cowpea were reduced by 9% to 27% and by 11% to 35% respectively compared with the sole crop. Application of fertilizer nitrogen produced significantly higher yields. Nitrogen uptakes by leaves, stems and grain of cowpea were significantly reduced under A. ferruginea and A. lebbeck, but cowpea as sole crop and under F. albida showed no differences. Nitrogen uptake in different plant parts increased with increase in fertilizer nitrogen level.

scholarly journals Available Nutrient Status of Soil as Influenced by Combined Application of Humic Acid and Inorganic Nitrogen

2021 ◽  
pp. 209-217
Author(s):  
K. Sai Manjeera ◽  
P. Venkata Subbaiah ◽  
P. R. K. Prasad ◽  
M. Sree Rekha
Keyword(s):  
Humic Acid ◽  
Inorganic Nitrogen ◽  
Chemical Properties ◽  
Nutrient Status ◽  
Recommended Dose ◽  
Available N ◽  
Combined Application ◽  
Agricultural College ◽  
College Farm ◽  
Available Nutrient Status

A field experiment was carried out to study the influence of different levels of humic acid (10, 20, 30 kg ha-1) and inorganic N fertilizer viz., 100 % of recommended dose and 75 % of recommended dose on chemical properties of soil under direct sown rice at Agricultural college farm, Bapatla during 2019. The experiment was laid out in RBD with ten treatments replicated thrice with BPT-5204 variety of rice as test crop. Soil samples collected at tillering, panicle initiation and harvest stages of crop were analyzed for chemical properties like available N, P2O5, K2O, Sulphur and cationic micro-nutrients (Fe, Mn, Zn, Cu). Results indicated that increased availability of N, P2O5, K2O, Sulphur and cationic micro-nutrients (Fe, Mn, Zn, Cu) were observed with the treatment T6 involving 100% RDN and HA @ 30 kg ha-1.

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