Nitrogen per plant

Ebook "Nutrient use efficiency in plants: Concepts and approaches" presents a broad overview of topics related to improvement of nutrient use efficiency of crops. Nutrient use efficiency (NUE) is a measure of how well plants use the available mineral nutrients. It can be defined as yield (biomass) per unit input (fertilizer, nutrient content). NUE is a complex trait: it depends on the ability to take up the nutrients from the soil, but also on transport, storage, mobilization, usage within the plant, and even on the environment.

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The treatments consisted of soil application of three nitrogen levels (100, 120, 140 kg/ha) and three Iron levels (10, 20, 30 kg/ha). There were 10 treatments each replicated thrice. The experiment was laid out in Randomized Block Design. Maximum result showed in growth parameters viz. plant height, Number of leaves per plant, Dry matter production, were recorded highest inT9 nitrogen 140 kg/ha + Fe 30 kg/ha and yield parameters viz. number of cobs per plant, number of grains per cob, test weight...

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The study has revealed that significantly highest number of flowers per plant (28.00), highest flower diameter (7.83 cm) and highest flower yield per hectare (25.25 q) were observed by application of nitrogen at the rate of 200 kg ha-1 in combination with potassium at the rate of 150 kg ha-1 . Non-significant changes were observed in the available organic carbon content in the soil at the end of the experiment when compared with the application of nutrients before the experimentation.

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The experiment consisted of three levels of nitrogen (90,120 and 150 kg ha1 ) with basal application of P2O5 and K2O each at 60 kg ha-1 and zinc at 15kg ha-1 (basal application) or 0.5% ZnSO4 (foliar spray) and inoculated with Azotobacter or Azospirillum. Highest number of cobs plant-1 , plant height, dry weight, grains cob-1 and grain yield was recorded in the plots treated with 150 kg ha-1 N + 15 kg ZnSO4 basal along with seed inoculation with Azospirillum 20 g per kg seeds.

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A field experiment was conducted with 4 nitrogen and 4 spacing levels in factorial randomized block design with three replications. Maximum leaf area, chlorophyll content, AGR and fresh and dry yield per plant were recorded when the crop was applied with 80 kg N/ha with a spacing of 20 x 10 cm (N4S1) whereas the plant spaced at 20 x 10 cm (S1) recorded maximum CGR, LAI, fresh and dry yield per hectare under the Northern dry zone of Karnataka.

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The pulses are an important source of protein for the poor as well as for the vegetarians. Chickpea is most important pulse crop of India in terms of area and production, widely grown for centuries and accounts for nearly 40 per cent of the total pulse production in the country. Chickpea is most important pulse crop of India in terms of area and production, widely grown for centuries and accounts for nearly 40 per cent of the total pulse production in the country. The data was collected from cultivars with the help of pre-tested schedule through personal interview method.

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A field experiment was conducted at Agricultural Research Station-KasbeDigraj (Dist.-Sangli) Maharashtra, (India) during 2013-15. It was laid out in Randomized Block Design with four replication and six treatments. There were various levels of nitrogen (100%, 50%, 25% and 0%) with P2O5, K2O, PSB, FYM and foliar application of consortium of endophytic nitrogen fixing bacterial with and without combination and set treatment of Acetobacter diazotrophicus.

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The present study was undertaken during 2013-14 and 2014-15 at Chaudhary Charan Singh research farm Hisar, to find out the effect of date of sowing and nitrogen levels on growth, yield, nitrogen uptake and nutrient use efficiencies in western Haryana. The results revealed that plant height, dry matter accumulation, Siliquae per plant, number of seeds of siliqua and 1000 seed weight decreased with each delay in sowing. The seed yield decreased by 39.8 and 38.7 % over November 15, 24.2 and 24.5% over November 5, 6.89 and 7.

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To identify the best source of nitrogen among organic and inorganic sources and their combinations for better growth, flowering behaviour and fruit yield of chilli cv. Bulet, an experiment was conducted in Gangetic Alluvial plain of West Bengal. Six organic manures in different combinations were applied along with Urea at three levels (25%, 50%, and 75). Result showed that plant height and number of branches per plant was found maximum with a combination of vermicompost and urea at 50%. Flowering was delayed with increase in inorganic nitrogen level (25, 50 and 75%) in the growing media.

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A field experiment was conducted during Kharif season 2015. The results of the study indicated the application of phosphorus up to 40 kg P2O5 ha-1 recorded significantly higher number of pods per plant, number of seeds per pod and seed and straw yield, nitrogen, phosphorus and potassium uptake in seed and straw, protein content in seed, microbial biomass carbon, nitrogen and phosphorus in soil as compared to absolute control and 20 kg P2O5 ha-1 but was at par with 60 kg P2O5 ha-1 .

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A field experiment entitled effect of bio fertilizers on growth and yield of black gram under the Arid zone of Rajasthan was conducted in sandy loamy soil having the medium in available nitrogen (181.21), low phosphorus (16.0) and medium potassium (257.37) with pH of 7.

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Field experiment regarding the effect of three levels of nitrogen control, lowest and highest dose per hectare which was supplied by means of urea and three levels of spacing that is 30cm, 45cm and 60cm each were carried out and cauliflower seedlings were transplanted in the field on 28 December 2013 at the Vegetable Farm of Udai Pratap Autonomous College, Varanasi. Nitrogen application had significant effect for all the characters at all the stages of the cauliflower plant.

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The present study was conducted to evaluate the response of three castor hybrids (PCH 111, GCH 4, Western Maruthi) to varying nitrogen levels (60, 80, 100 and 120 kg N ha-1 ) under rainfed conditions at Agricultural College Farm, Bapatla during kharif, 2017. The growth characters viz., plant height and dry matter accumulation at harvest, days to maturity and SPAD chlorophyll meter reading as well as yield attributing parameters viz.

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An experiment was conducted to elucidate the effectiveness of different soil organic amendments and chemical fertilizers on growth and yield of tuberose. the result of the study revealed that among all the organic manures and their combinations with inorganic fertilisers, the best results were recorded in T9 [75% N (Urea) + 25% N (Mustard oil cake)] with respect to vegetative parameters (plant height, number of leaves per plant, leaf length).

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Phosphorus is important for early shoot and root development, providing energy for plant processes such as ion uptake and transport. Phosphorus is the most important nutrient element (after nitrogen) limiting agricultural production in most regions of the world. Phosphorous is the second major nutrient for the plants, however, it is the least soluble in soil. The total phosphorous in the soil ranges from 0.01 - 0.2 per cent but only a small amount of it is available to the plants.

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A field study was conducted during 2015 to investigate the effect of nitrogen and GA3 on suppression of flowering for enhancement of vegetative phase in stevia (Stevia rebaudiana Bertoni.). The result revealed that maximum plant height, number of branches per plant and fresh leaf yield per hectare was recorded with the application of nitrogen at 120 Kg per hectare at 90 DAT. At 90 DAT application of GA3 500 ppm recorded significantly higher plant height and number of branches per plant.

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The study was carried out during 2015-2016 at College of Agriculture, Navile, Shivamogga by raising single radish plant per pot. Six levels of Nitrogen, i.e. 0, 50, 75, 100, 150 and 200 percent of recommended level of nitrogen per plant (225.00 mg N/plant) were applied twice, before sowing and two weeks after sowing. Sampling for aphid Brevicoryne brassicae (L.) was done at weekly interval.

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The present study on the integrated nutrient management in aonla involved application of inorganic fertilizers, FYM and Azotobacter under different combinations during 2016 and 2017 on ten year old plant of aonla cv. NA-7. Leaf and fruit study were analyzed to determine the status of different nutrients and soil microbial population in aonla. The two years pooled data analysis revealed that highest concentration of leaf and fruit nitrogen (2.78 and 0.14%), phosphorous (0.22% and 0.030%), calcium (2.33% and 0.031%) and magnesium (0.47 and 0.

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An experiment was conducted to find out the effect of organic and inorganic sources of fertilizers along with bioinoculants on growth, yield and quality of aonla cv. NA-7 during 2016 and 2017. Maximum increment in vegetative parameters viz., increment in plant height (10.92%), plant spread (13.91% NS and 13.88% EW) and canopy volume (40.32%) was recorded with the application of cent per cent nitrogen through urea and Azotobacter with recommended dosage of SSP and MOP. Yield parameters viz., fruit length (4.52 cm), fruit diameter (5.24 cm), fruit weight (48.56 g), fruit volume (47.

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A field experiment was conducted at the Coconut Research Station, Balaramapuram, Thiruvananthapuram, during the summer season to work out an economic nutrient management schedule for baby corn intercropped in coconut garden. The experiment was laid out in randomized block design with 10 treatments replicated thrice, using the baby corn hybrid, G 5414 as a test variety. Plant height (125.16 cm) at 30 days after emergence (DAE), number of leaves per plant at 45 DAE (11.87), leaf area index at 15 DAE (0.365), 30 DAE (2.25) and 45 DAE (4.28) and dry matter production (24203.

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