Economizing the use of nitrogen fertilizer in wheat production through enriched compost

2008 ◽  
Vol 23 (03) ◽  
pp. 243-249 ◽  
Author(s):  
Rizwan Ahmad ◽  
Muhammad Naveed ◽  
Muhammad Aslam ◽  
Zahir A. Zahir ◽  
Muhammad Arshad ◽  
...  

AbstractManipulation of organic wastes and their composts as a source of organic matter (OM) and nutrients is imperative for sustainable agriculture. Further, the fortification of composts with chemical fertilizer enhances agronomic effectiveness of both by reducing the amount of fertilizer and improving the quality of compost. The present study aimed to explore the potential of organic and chemical nutrient sources with their optimal application and integration for sustainable wheat production. Accordingly, waste fruits and vegetables were collected, dried, ground and processed in a composting vessel. During the enriched composting, waste material (300 kg) was fortified with 30 kg N, i.e. 25% of the standard rate (120 kg N ha−1) of N fertilizer. Treatments for both greenhouse and field experiments using wheat (Triticum aestivumL.) included: control (without any compost or N fertilizer), compost (non-enriched), fertilizer N 120 (120 kg N ha−1), nitrogen-enriched compost (NEC), NEC+N 30 (30 kg N ha−1) and NEC+N 60 (60 kg N ha−1). Application rate of composts (non-enriched or enriched) was 300 kg ha−1in the respective treatments. Phosphorus and potassium fertilizers were applied at 90 kg P2O5ha−1and 60 kg K2O ha−1, respectively in all treatments. The crop was grown to maturity, and data on wheat growth and yield attributes were recorded. Application of NEC significantly improved the growth, yield and N, P and K contents of wheat compared with compost and control treatments. The performance of NEC+N 60 was statistically similar to that of fertilizer N 120. Economic analysis also revealed the superiority of NEC+N 60 over other treatments in terms of net return and relative increase in income; however, the value/cost ratio was highest with NEC alone. For effective and economical use of N fertilizer, it is suggested to integrate N fertilizer at reduced rates with NEC. Through enriched compost, application rates can be decreased from tonnes to kilograms per hectare, and dependence on chemical fertilizer can be reduced to a certain extent. So the approach is farmer friendly as it lowers compost application rates, and is economically acceptable as it saves N fertilizer. It is also environmentally sustainable due the recycling of organic waste and possible reduction of N losses to the environment. Thus, the study has wide application in the global environment and fertilizer market.

2016 ◽  
Vol 39 (1) ◽  
Author(s):  
A. Sengupta ◽  
S. K. Gunri ◽  
T. K. Basu

To study the effect of nutrient management strategy on production potentiality of short duration high yielding summer irrigated groundnut variety TG 51, field experiments were conducted during summer seasons of 2011 and 2012 at Bidhan Chandra Krishi Viswavidyalaya, West Bengal. Results revealed that, application of 100 % RDF + 7.5 t/ha FYM as basal increased growth and yield attributes that led to significantly higher productivity (pod yield 3320 kg/ha) besides enrichment of soil available nutrients after harvest of the crop. Pod yield decreased with further increase in NPK fertilizer above 100% RDF. However, maximum haulm yield (3979kg/ha) was recorded with 150% RDF + 7.5t/ha FYM as basal. Maximum net return: cost ratio (3.43) was found with 100 % RDF which was closely followed by that of 100 % RDF + 7.5 t/ha FYM.


1997 ◽  
Vol 128 (4) ◽  
pp. 425-430 ◽  
Author(s):  
G. O. IREMIREN ◽  
P. O. ADEWUMI ◽  
S. O. ADULOJU ◽  
A. A. IBITOYE

In two field experiments conducted in 1991 and 1992 at Akure, Nigeria, 0–12 and 0–24 ml/l of the plant growth regulator, paclobutrazol, and 0, 75 and 150 kg N/ha were applied to maize in factorial combinations. Substantial vegetative growth occurred with increasing N rates in 1991 and this accelerated 50% silking date. Paclobutrazol influenced maize growth at this stage only in 1992 when 12 and 24 ml/l depressed plant height and increased both stem girth and leaf number/plant.Higher paclobutrazol application rates decreased plant height at maturity in both years while, in 1991, 150 kg N/ha enhanced it, and also stem girth and shoot dry matter yield. In 1991, both ear and grain dry weight yield/m2 increased with higher N rates while in 1992 4–24 ml/l paclobutrazol enhanced ear dry yield/m2 compared with untreated maize.Both chlorophyll a and b in the ear leaf increased with higher rates of paclobutrazol and N fertilizer, except in 1992 when high leaf N tended to mask the effect of paclobutrazol. N fertilizer in 1991 enhanced the contents of N and Ca in the ear leaf while depressing P, compared with untreated maize.


2016 ◽  
Vol 41 (4) ◽  
pp. 713-723
Author(s):  
S Akther ◽  
F Ahmed ◽  
MR Islam ◽  
MA Hossen ◽  
AHMM Rahman Talukder

Field experiments were carried out in the Agronomy field of BARI, Joydebpur, RARS, Jamalpur and RARS, Ishurdi during two consecutive kharif seasons of 2012 and 2013 to determine the suitable plant spacing and optimum fertilizer dose for higher yield of mukhikachu. Three levels of spacing viz., 60 cm x 60 cm, 60 cm x 45 cm and 60 cm x 30 cm and three levels of fertilizer dose viz., recommended dose (3000-96-27-81-18 kg ha-1 of CD-N-P-K-S), 25% less than the recommended dose and 25% higher than the recommended dose were used as treatment variables. The experiments were laid out in factorial randomized complete block design with three replications. Results revealed that the closer spacing (60 cm x 30 cm) in combination with 25% higher than the recommended fertilizer dose gave the maximum edible yield of mukhikachu (two years average) at all locations (20.04 t ha-1, 20.75 t ha-1 and 16.63 t ha-1 at Joydebpur, Jamalpur and Ishurdi, respectively). The wider spacing (60 cm x 60 cm) coupled with 25% less than the recommended fertilizer dose produced the lowest yield (two years average). The maximum benefit- cost ratio (two years average) was obtained from the combination of the recommended fertilizer dose and 60 cm x 30 cm spacing, that were 2.93 at Joydebpur and 3.42 at Ishurdi, while at Jamalpur the maximum benefit-cost ratio (two years average) was found maximum from 60 cm x 30 cm spacing with 25% higher than the recommended fertilizer dose (3.12).Bangladesh J. Agril. Res. 41(4): 713-723, December 2016


2021 ◽  
Vol 4 (2) ◽  
pp. 1021-1033
Author(s):  
Nguyen Thi Loan ◽  
Tran Thi My Can

To study the effects of cover methods and nitrogen (N) levels on the growth and yield components of tomato Cv. Pear F1, field experiments with a 4x3 factorial design were conducted in the 2019 spring and winter seasons using a randomized complete block design with three replications. The cover methods included four treatments: bare soil (BS), black plastic mulch (BPM), transparent polypropylene row cover (RC), and a combination of BPM and RC (BPMRC) with the RC removed approximately 30 days after transplanting. Nitrogen (N) was applied at three levels (150, 180, and 210 kg N ha-1). Using BPM and RC generally led to an increased air temperature, air humidity, soil moisture, and soil temperature compared to the BS treatment. Higher N rates (180 and 210 kg N ha-1) did not result  in different tomato fruit sizes and fruit weights but positively increased fruit yield and quality (Brix values and fruit dry weight) as compared to the 150 kg N ha-1 addition. The cover methods positively affected the yield components and fruit yield of tomato as well as the fruit characteristics compared to the BS treatment. Using cover materials (BPM and RC) combined with a higher N application significantly increased the yield attributes and fruit yield. The highest fruit yield was achieved under the mulching treatment by black plastic (BPM treatment) combined with a 210 kg N ha-1 application, resulting in 50.90 tons ha-1 in the spring and 58.27 tons ha-1 in the winter.


1990 ◽  
Vol 70 (4) ◽  
pp. 979-986 ◽  
Author(s):  
L. D. BAILEY

’N-Serve’ has been shown to reduce losses of applied N-fertilizer and thereby increase fertilizer N-utilization by plants. This study was undertaken to test the effects of ’N-Serve’ on fertilizer N efficiency in oilseed rape production and quality. Field experiments were conducted on two chernozemic soils over 4 yr in Manitoba. The oilseed rape cultivars Tower (Brassica napus L.) and Torch (B. campestris) were used in the study. Spring and fall applied ammonium nitrate, urea and fluid-N, with and without ’N-Serve’ delayed flowering and increased the herbage yield of both oilseed rape cultivars. The number of days from full pod to maturity was increased with application of N fertilizers, but the number of days from flowering to full pod was constant. Increased herbage yield and total plant N at flowering was reflected in increased seed yield and meal protein content, but decreased oil content. ’N-Serve’ applied with and without N fertilizer reduced oil content and oil yield. However, when ’N-Serve’ was applied in the fall with urea and fluid-N it improved their efficiency, resulting in higher seed yields and meal protein content equivalent to that of spring applications. ’N-Serve’ used with fall applied ammonium nitrate or with all three sources of spring applied N had no similar effect. It is concluded that ’N-Serve’ should not be applied to oilseed rape, mainly because of its negative effect on seed oil content.Key words: Oilseed rape, ammonium nitrate, urea, fluid-N, chernozemic soil, protein, oil


Author(s):  
V. R. Jinjala ◽  
H. M. Virdia ◽  
N. N. Saravaiya ◽  
A. D. Raj

A field experiment was conducted during rabi season of 2011-12 on heavy black soil to study the effect of integrated nutrient management on growth and yield of baby corn. The treatments comprising all possible combinations of five levels of nitrogen (chemical and vermicompost fertilizer) with and without bio-fertilizer (Azotobacter and PSB) were laid out in randomized block design with three replications. These were significantly higher with application of 100% RDN from chemical fertilizer with bio-fertilizer over 100% RDN from vermicompost. The cob and fodder yields significantly differed with different integrated nutrient management treatment. Significantly the higher growth and yield attributes yield and fodder yield were recorded with the application of 100% RDF from chemical fertilizer with bio-fertilizer. Application of 100% RDN from chemical fertilizer with biofertilizer was recorded higher net returns over 100% RDN from vermicompost (Rs. 220775/ha) and BCR (12.54).


2021 ◽  
Author(s):  
P. Ramamoorthy ◽  
R. Ariraman ◽  
K.K. Suvain ◽  
S. Selvakumar ◽  
M. Karthikeyan

Sunflower is an important crop cultivated all over world owing to its versatile nature of adaptation to different agro-climatic and soil conditions. In India sunflower gains momentum as an edible oil and ranks fourth substantially by reducing the shortage of vegetable oil. Nutritionally sunflower oil benefits human due to presence of high linoleic acid content and absence of linolenic acid content. The productivity is lower due to different factors among which nutrient management especially sulphur that plays pivot role in governing the growth, yield and quality of sunflower. Sulphur contains aminoacids viz., cystein, methionine, cystine, vitamins B, biotin and thiamine. The protolytic enzymes aids in improving the oil content, protein content and quality of seeds by sulphur supplement. Extensive investigations of research scientist on sulphur levels were critically reviewed. Application of sulphur at 40 to 60 kg ha-1 was found to increase the growth and yield attributes, yield, quality as well as higher benefit cost ratio sustaining the livelihood of sunflower growers.


2020 ◽  
Vol 31 (2) ◽  
pp. 81-88
Author(s):  
MA Haque ◽  
MM Ali

Field experiments were conducted in three Agroecological zones (AEZ) at Farmer’s field, Rangpur (AEZ-3), Farmer’s field, Ishurdi (AEZ-11) and BINA farm, Mymensingh (AEZ-9) to investigate the integrated effect of vermicompost and chemical fertilizers (CF) on Mustard (Brassica napus L.) during 2017-18 cropping season to reduce the usage of chemical fertilizer for mustard cultivation. The experiments were carried out with eight treatments and three replications in Randomized Complete Block Design. The treatments for the crops used in the experiments were T1: Native soil fertility, T2:100% chemical fertilizer (CF),T3: 75% CF, T4: 75% CF + Vermicompost (VC) @ 4 t ha-1, T5:85% CF ,T6: 85% CF + VC @ 4 t ha-1 T7: 75% CF +VC @ 2 t ha-1­­­­ and T8: 85% CF+VC @ 2 tha-1. Fertilizers applied on the basis of soil test (STB). Application of vermicompost with chemical fertilizer increased the yield attributes and yields of mustard. The treatment T6 (85% CF + VC @ 4 tha-1) gave the tallest plant height, greatest number of pods plant-1 and siliqua pod-1 and maximum seed (1.82, 1.26 and 1.49 t ha-1 at Rangpur, Ishurdi and Mymensingh, respectively) and straw yields of mustard at all the location with the few exception. But the treatment T6 gave the identical results with the treatments T8, T4 and T2. Application of vermicompost also increased the N, P and K uptakes of mustard at all the location. The treatments T6 T8 and T4 gave statistically identical nutrients uptakes to the treatment T2 (100%CF). The results revealed that 75% CF with 4 t ha-1 vermicompost or 85% CF with 2 t ha-1 vermicompost almost equally effective to produce seed yield of mustard which was also comparable with the full dose (100%) of chemical fertilizers (NPKS) in all the location. Therefore 15-25% chemical fertilizer (NPKS) could be reduced either with the application of 75% CF with 4 t ha-1 vermicompost or 85% CF with 2 t ha-1 vermicompost for mustard cultivation. Progressive Agriculture 31 (2): 81-88, 2020


Author(s):  
Jamal Nasar ◽  
Ashfaq Alam ◽  
Muhammad Zubair Khan ◽  
Bilal Ahmed

The utilization of organic fertilizers in farmlands to enhance crop productivity and soil health is increasing globally. Compost and charcoal obtained from the decomposition and slow pyrolysis (respectively) of plants and animals wastes. Here we evaluated the effect of charcoal and compost on the growth and yield of wheat (Triticum aestivum L.) at Agriculture Research Farm Peshawar, Pakistan during 2014-2015. Results showed that the application of compost and charcoal as sole or in combination significantly affected the yield and yield attributes of wheat. Data divulged that the maximum numbers of plant tillers (337 m-2), number of productive tillers per plant (313 m-2), number of grains per spike (56 spike-1) and 1000 seeds weight (50.2 g) were produced by the combined application of compost and charcoal at 5+5 Mg ha-1 while plant height (95.3 cm) was enhanced with the application of charcoal at 10 Mg ha-1. The gain (4106.7 kg ha-1) and biological yield (8473.3 kg ha-1) was significantly increased with the compost application at the rate of 10 Mg ha-1. These results proved that charcoal and compost can be used as organic fertilizers for boosting growth and yield performance of wheat under the agro-climatic conditions of Peshawar, Pakistan.


2020 ◽  
Vol 107 ◽  
pp. 1-4
Author(s):  
Subramanian E ◽  
◽  
Sathishkumar A ◽  
Rajesh P ◽  
◽  
...  

The present study aimed to the effect of different organic manures on the growth and yield attributes of cotton by conducting field experiments during rice fallow season of 2013-14 and 2014-15 at the Tamil Nadu Rice Research Institute, Aduthurai.. The cotton growth parameters such as plant height, leaf area index, dry matter production and monopodial branches plant-1 were significantly influenced by the application of 100% recommended dose of fertilizer through vermicompost (on equal N basis). Also application of recommended dose of fertilizer through vermicompost (on equal N basis) recorded significantly higher yield attributes viz., sympodial branches plant-1, number of bolls plant-1, boll weight and seed cotton yield (17.4 and 18.6 q ha-1 during both the years, respectively). Economic analysis also indicated that Insitu vermicomposting produced higher net returns with higher B:C ratio.


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