scholarly journals Effects of Irrigation and Nitrogen Fertilization on Photosynthesis, Leaf Area Index and Dry Matter Production of Wheat on a Clay Terrace Soil of Bangladesh

10.5109/24378 ◽  
2000 ◽  
Vol 45 (1) ◽  
pp. 289-300 ◽  
Author(s):  
Ataur Rahman M. ◽  
Sirajul A. J. M. Karim ◽  
M. Hoque M. ◽  
Kazuhiko Egashira
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Nitrogen Fertilization ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Area Index ◽  
Matter Production

scholarly journals EVALUATION OF EARLY POST-EMERGENCE HERBICIDE APPLICATION ON WEED CONTROL, CROP GROWTH AND NUTRIENT UPTAKE IN TRANSPLANTED RICE (ORYZA SATIVA)

2020 ◽  
Vol 21 (supplement 1) ◽  
Author(s):  
T. Srinithan ◽  
K. Arivukkarasu Arivukkarasu ◽  
P. Sivasakthivelan ◽  
R. Rex Immanuel
Keyword(s):  
Leaf Area Index ◽  
Nutrient Uptake ◽  
Leaf Area ◽  
Plant Height ◽  
Weed Control ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Area Index ◽  
Transplanted Rice ◽  
Matter Production

A field experiment was conducted during Kuruvai season at the Experimental Farm, Department of Agronomy, Annamalai University to evaluate the performance of early post emergence application of herbicides on weed control in transplanted rice. The experiment was carried out in a Randomized Block Design with eight treatments and three replications. All the imposed treatments significantly influenced the weed parameters and crop parameters in rice. The experimental results revealed that, hand weeding twice at 20 and 40 DAT recorded the lowest total weed count (13.74), highest weed control efficiency (WCE) (92.79 per cent), highest plant height (85.76 cm), higher leaf area index (4.28), higher crop dry matter production (7689 kg ha-1 )and highest nutrient uptake by rice crop (134.79, 33.17, 99.41 kg of N, P2O5 , K2O ha-1, respectively) which was statistically on par with application of penoxsulam + cyhalofop butyl@135 g ha-1 (premix)(15 DAT) that recorded the total weed count (16.74), weed control efficiency (91.21 per cent), plant height (85.03cm), leaf area index (4.19), dry matter production (7567 kg ha-1), crop nutrient uptake (132.37 , 32.48, 97.25 kg of N, P2O5 , K2O ha-1, respectively). Highest total weed count, with lowest plant height, leaf area index, crop dry matter production and crop nutrient uptake were recorded with unweeded control.

scholarly journals Integrated Nutrient Management with Biofertilizers in Different Genotypes of Rice Sown under Aerobic Conditions

2019 ◽  
pp. 1-8
Author(s):  
B. Sreedevi ◽  
Aarti Singh ◽  
M. Tejaswini
Keyword(s):  
Leaf Area Index ◽  
Nutrient Uptake ◽  
Leaf Area ◽  
Dry Matter ◽  
Nutrient Management ◽  
Growth And Yield ◽  
Dry Matter Production ◽  
Area Index ◽  
Yield Attributes ◽  
Matter Production

Aerobic rice is a new way of cultivating rice that requires less water than lowland rice. A field experiment was conducted during the kharif season of 2015 to evaluate the effects of nutrient management with Biofertilizers on growth and yield attributes, yield, nutrient uptake and economics different rice cultivars. The experiment was laid out split plot design with four replications. Main plot treatments consisted of two cultivars viz., whereas, sub plot treatments comprised of nutrient management practices namely, N1-125% RDF, N2-125% RDF + Biofertilizers, N3 -100% RDF, N4 -100% RDF + Biofertilizers, N5-75% RDF, N6-75% RDF + Biofertilizers. The source of biofertiliser was a combination of Azospirillum, Phosphorus Solubilizing Bacteria and Potassium Solubilizer applied @ 5 kg/ha-1. Crop dry matter production (2582.3 g/m2), root dry matter production (910.1 g/m2), tillers/m2 (566), leaf area index (4.54), panicles/m2 (535), panicle length (23.81), panicle weight (4.56) and test weight (25.3) was higher in PA 6444 compared to DRR Dhan 44. Higher uptake of nutrients was also observed in PA 6444. Rice fertilized with 125% RDF + Biofertilizers (N2) produced higher crop (2901.6 g/m2) and root dry matter production (1028.1 g/m2), tillers/m2 (561) and leaf area index (5.19). This treatment also recorded higher yield attributes and grain yield (3.55 t/ha). With respect to nutrient uptake, application of 125% RDF + Biofertilizers (N2) recorded      higher N, P and K uptake by grain and straw and higher profitability (1.57) than other nutrient combinations.

GROWTH AND DRY MATTER (FODDER) PRODUCTION OF MAIZE (Zea mays L.) VARIETIES AS AFFECTED BY TIMING OF NITROGEN SECOND DOSE FERTILIZATION

2021 ◽  
Vol 4 (4) ◽  
pp. 96-107
Author(s):  
Muhammad Kabir Ladan ◽  
Hassan Adamu Hamidu ◽  
Abdul Bamidele Lawal ◽  
Abdullahi Namakka
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Sea Level ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Total Leaf Area ◽  
Area Index ◽  
Matter Production ◽  
Maize Varieties ◽  
Number Of Leaves

ABSTRACT Field trials were conducted in 2016 wet season at Institute of Agricultural Research IAR, Research Farm(Lat.11o 11’ N, Long. 07038’ E, 686m above sea level), Samaru-Zaria and Jaji Military Cantonment Farm located at 30 Km from Zaria along Kaduna – Zaria road (Lat. 10o 49’ 25” N, Long. 07o 34’ 10” E, 600m above sea level), both in Northern Guinea Savannah of Nigeria, to Investigate the growth of Maize varieties and dry matter produced at varying timing of nitrogen second dose fertilization. The treatments consist of three maize varieties (SAMMAZ 14, SAMMAZ 15 and SAMMAZ 16) and six times of nitrogen second dose fertilization 4 5, 6, 7, 8, 9 weeks after sowing (WAS). Treatments were factorially combined and laid out in a randomized complete block design (RCBD) with three replications. SAMMAZ 16 outperformed SAMMAZ 14 and SAMMAZ 15 in terms of plant height, number of leaves, total leaf area, leaf area index and dry matter production. Time of nitrogen second dose application 6 WAS consistently produced the highest growth attributes of maize  ;plant height, number of leaves, total leaf area, leaf area index and dry matter production compared to other timings evaluated. SAMMAZ 16 and 6 WAS in conclusion appeared to be the optimum for increased maize fodder (dry matter) production in the Savannah region where potential for livestock production is high.

scholarly journals Growth and yield of sunflower (Helianthus annus L.) as influenced by nitrogen, sulphur and farmyard manure under temperate conditions

2014 ◽  
Vol 11 (1) ◽  
pp. 81-89 ◽  
Author(s):  
FU Rasool ◽  
B Hassan ◽  
A Jahangir
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Plant Height ◽  
Dry Matter ◽  
Farmyard Manure ◽  
Growth And Yield ◽  
Oil Yield ◽  
Dry Matter Production ◽  
Area Index ◽  
Matter Production

A field experiment was conducted at the Research farm, Division of Agronomy, Sher-e-Kashmir University of Agricultural Sciences and Technology, India for two consecutive rainy (kharif) seasons of 2009 and 2010 to find out the impact of nitrogen, sulphur and farmyard manure (FYM) on growth and yield of sunflower (Helianthus annuus L.). Application of 120 kg N ha-1 significantly increased all the yield components viz., plant height, leaf area index, dry matter production, capitulum diameter, achenes capitulum-1 and 1000-seed weight. Pooled yield increased by 26% with 120 kg N but it was statistically at par with 80 kg N ha-1. With increased N dose, the oil content consistently decreased but the oil yield improved during both years. Sulphur application at the rate of 60 kg ha-1 significantly increased plant height, leaf area index and dry matter production after 25 days of sowing (DAS). All yield contributing characters viz., filled achenes capitulum-1, head diameter and 1000-seed weights were higher with 60 kg S ha-1 over 30 kg S ha-1. Seed and stalk yield with 60 kg S ha-1 were significantly higher than those of 30 kg S ha-1. Similarly, oil content and oil yield with 60kg Sha-1 was 2 and 10.5 % over 30 kg S ha-1. Application of FYM at the rate of 10 and 20 t ha-1 was at par with each other but recorded significant improvement in the plant height, leaf area index and dry matter production of sunflower after 25 days of sowing over no FYM. FYM @10 and 20 t ha-1 increased the oil yield by 11 and 5.4 %, respectively over no application. DOI: http://dx.doi.org/10.3329/sja.v11i1.18386 SAARC J. Agri., 11(1): 81-89 (2013)

Studies on Transpiration Suppressants on Spring Sorghum in North-Western India in Relation to Soil Moisture Regimes. II. Effect on Growth and Nutrient Uptake

1984 ◽  
Vol 20 (2) ◽  
pp. 161-170
Author(s):  
D. Boobathi Babu ◽  
S. P. Singh
Keyword(s):  
Soil Moisture ◽  
Leaf Area Index ◽  
Nutrient Uptake ◽  
Leaf Area ◽  
Dry Matter ◽  
Western India ◽  
Area Index ◽  
Matter Production ◽  
Moisture Regimes ◽  
North Western

SUMMARYThe effects of irrigation and spraying of transpiration suppressants on growth and nutrient uptake by spring sorghum (CSH 6) have been investigated. Crop growth, measured by plant-height, leaf area index and dry matter production, and uptake of N, P and K increased with more frequent irrigation and in response to the spraying of transpiration suppressants. Foliar applications of atrazine at 200 g ha−1 and CCC at 300 ml ha−1 proved to be the best in this NW Indian location.

scholarly journals Growth analysis of chickpea (Cicer arietinum L.)

1994 ◽  
Vol 51 (3) ◽  
pp. 430-435 ◽  
Author(s):  
S.S.S. Nogueira ◽  
V. Nagai ◽  
N.R. Braga ◽  
M. Do C.S.S. Novo ◽  
M.B.P. Camargo
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Dry Matter ◽  
Growth Analysis ◽  
Climatic Conditions ◽  
Area Index ◽  
Experimental Station ◽  
Matter Production ◽  
Winter Crop ◽  
Quadratic Models

An experiment to study the growing pattern of a chickpea variety, IAC-Marrocos, was carried out at the Monte Alegre Experimental Station, SP, during 1987 and 1988. The dry matter production of all parts of the plant, as well the leaf area index, were weekly evaluated. Exponential quadratic models of regression were adjusted to total dry matter, leaf dry matter and leaf area index, and a linear model to dry matter of grain. Based on the growth analysis it was concluded that the chickpea is a rustic eatable plant that can be recommended as an alternative winter crop for similar climatic conditions as those of the experiment.

scholarly journals Supplementary irrigation in Sudan grass: Leaf area index, dry matter production and water use efficiency

Científica ◽  
2020 ◽  
Vol 48 (2) ◽  
pp. 85
Author(s):  
Wellington Mezzomo ◽  
Marcia Xavier Peiter ◽  
Adroaldo Dias Robaina ◽  
Jardel Henrique Kirchner ◽  
Rogério Ricalde Torres ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Water Use ◽  
Dry Matter ◽  
Area Index ◽  
Sudan Grass ◽  
Matter Production ◽  
Supplementary Irrigation ◽  
Use Efficiency

Studies on Transpiration Suppressants on Spring Sorghum in North-Western India in Relation to Soil Moisture Regimes. II. Effect on Growth and Nutrient Uptake

1984 ◽  
Vol 20 (2) ◽  
pp. 161-170 ◽  
Author(s):  
D. Boobathi Babu ◽  
S. P. Singh
Keyword(s):  
Soil Moisture ◽  
Leaf Area Index ◽  
Nutrient Uptake ◽  
Leaf Area ◽  
Dry Matter ◽  
Western India ◽  
Area Index ◽  
Matter Production ◽  
Moisture Regimes ◽  
North Western

SUMMARYThe effects of irrigation and spraying of transpiration suppressants on growth and nutrient uptake by spring sorghum (CSH 6) have been investigated. Crop growth, measured by plant-height, leaf area index and dry matter production, and uptake of N, P and K increased with more frequent irrigation and in response to the spraying of transpiration suppressants. Foliar applications of atrazine at 200 g ha−1 and CCC at 300 ml ha−1 proved to be the best in this NW Indian location.

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