scholarly journals An Effect of Nutrient Deficiency on Yield Estimation

2019 ◽  
Vol 8 (3) ◽  
pp. 7-18
Keyword(s):  
Agricultural Sector ◽  
Nitrogen Deficiency ◽  
Total Yield ◽  
Nutrient Deficiency ◽  
Ground Truth ◽  
Proposed Model ◽  
Segmentation Methods ◽  
Phosphorus And Potassium ◽  
Major Nutrients ◽  
Nitrogen Phosphorus

By taking corrective measures to improve the farming quality, agricultural sector need a thoroughly explained and systematic theory for crop yield prediction. Any yield of the crop is usually depending on the crop unhealthy and healthy conditions. These conditions mainly occur due to major nutrients like nitrogen, Phosphorus and Potassium (NPK). Nitrogen deficiency will make the fields in some parts look Yellowish. Potassium deficiency may lead to have spots in the leaf and Phosphorous will make the fields some part look brownish. Hence segmenting this defected area is the major challenge to evaluate the total yield in the input paddy field image. The proposed model focus on segmentation of these regions using an efficient hierarchical model. This model uses segmentation methods like FCM and Color segmentation techniques there by improving the accuracy of the system and comparing with the ground truth values

Agroecological Characteristics of lands spread in the territory of Mil-Karabakh cadastry district (in the example of Agdam district)

2021 ◽  
Vol 07 (02) ◽  
pp. 4-7
Author(s):  
Vüqar İmanəli oğlu Cəfərov ◽  
◽  
Rəşad Mais oğlu Qubatov ◽  
Keyword(s):  
Land Management ◽  
National Economy ◽  
Agricultural Sector ◽  
Agricultural Land ◽  
Agrarian Sector ◽  
Agrochemical Properties ◽  
Phosphorus And Potassium ◽  
Agricultural Land Management ◽  
Modern Form ◽  
Nitrogen Phosphorus

Fundamental reforms are being carried out in many spheres of the national economy in our republic. In particular, the development of the agricultural sector in the liberated territories is one of the main goals today. It is very important to reorganize the agrarian sector on the basis of the adopted laws, to use lands efficiently, and to organize agricultural land management in a modern form. The article studied the agrochemical properties of meadow-gray soils in the territory of Aghdam region and determined that the 0-100 cm layer of soils is poorly supplied with common and active forms of nitrogen, phosphorus and potassium elements. Key words: Mil-Garabagh, Ağdam district, nitrogen, phosphorus, potassium, meadow-gray soils, cadastre, fertility

scholarly journals Response of soil sulfur availability to elevation and degradation in the Wugong Mountain meadow, China

2017 ◽  
Vol 63 (No. 6) ◽  
pp. 250-256 ◽  
Author(s):  
Li Zhi ◽  
Zhang Ling ◽  
Chen Jing ◽  
Zhang Xueling ◽  
Yu Suqin ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Soil Nutrient ◽  
Principal Component ◽  
Elevation Gradients ◽  
Nutrients Cycling ◽  
Phosphorus And Potassium ◽  
Major Nutrients ◽  
Nutrient Changes ◽  
Soil Sulfur ◽  
Nitrogen Phosphorus

Vegetation restorations of degraded meadows have been widely implemented. The evaluation of soil nutrient changes as affected by degradation is vital for efficient restorations. However, while macronutrients (nitrogen, phosphorus and potassium) have been widely investigated, sulfur (S) as one important element correlated tightly with other nutrients has not been thoroughly studied. Two studies were conducted to determine changes of sulfur as affected by degradation and elevation gradients. The results showed that available S (AS) changed non-linearly with elevation and the first principal component based on other soil nutrient variables. Soil AS depended on degradation levels and contributed substantially to the separation of meadows with different degradation levels. Moreover, AS responded stronger to changes in elevation gradients and degradation levels compared with other major nutrients. Thereby, AS could be an important nutrient responding to meadow disturbance, which should be considered in future studies on meadow soil nutrients cycling and vegetation restorations. The findings have implications for ecological restoration of degraded meadows with respect to soil nutrient management and conservations.

scholarly journals RESPONSE OF DIFFERENT CUCUMBER HYBRIDS TO GRAFTING ON SQUASH ROOTSTOCK

2017 ◽  
Vol 48 (2) ◽  
Author(s):  
A. H. Abdul Razzaq
Keyword(s):  
Block Design ◽  
Total Yield ◽  
Dry Weight ◽  
Research Station ◽  
Cucurbita Moschata ◽  
Insertion Technique ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

A field experiment was conducted at Unifert Research Station Yousfiah Center of Iraq during spring of 2015 by grafting five cucumber hybrids named Mayadine, Ghazeer, Najim, Emparator and Beit Alpha on the rootstock ES101 (Cucurbita maxima x Cucurbita moschata) used the hole Insertion technique. The experiment content 10 treatments which were the grafted and ungrafted hybrids using randomized complete block design with three replications. The results showed that grafted Emparator (C4G) gave asignificans increase in the number of leaves (124.20 leaf.plant-1), leaf area (1.85 m2), chlorophyll leaf content (603.0 mg.100 g-1), plant dry weight (191.7 g.plant-1) and the amount of absorbed (nitrogen, phosphorus and potassium) by square area which were (17.77, 1.11 and 14.82 g.m-2, respectively). However, grafted Nagim (C3G) showed an increase in fruit count (14.03 fruit.plant-1), plant yield (1.53 kg.plant-1, early yield (10.60 ton.ha-1) and total yield (28.77 ton.ha-1).

scholarly journals Yield and nutrient uptake in niger (Guizotia abyssinica) as influenced by different levels of nitrogen, phosphorus, potassium and sulphur

2021 ◽  
Vol 17 (2) ◽  
pp. 502-508
Author(s):  
P. Bora ◽  
P. C. Bora ◽  
K. Kurmi ◽  
S. Kalita
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Phosphorus Uptake ◽  
First Year ◽  
Randomized Block Design ◽  
Phosphorus And Potassium ◽  
Major Nutrients ◽  
Nitrogen Phosphorus ◽  
Different Levels ◽  
Sulphur Uptake

A field experiment was conducted during the Rabi seasons of 2016-17 and 2017-18 at Instructional-Cum-Research (ICR) Farm, Assam Agricultural University, Jorhat to study the effect of different levels of primary major nutrients (nitrogen, phosphorus and potassium) as well as secondary nutrient (sulphur) on the uptake of the same by niger and yield of the crop. The experiment was laid out in Factorial Randomized Block Design and replicated thrice. The treatments consisted of three NPK levels viz., F1 (20-10-10 kg N-P2O5-K2O ha-1), F2 (25-12.5-12.5 kg N-P2O5-K2O ha-1), F3 (30-15-15 kg N-P2O5-K2O ha-1) and three sulphur levels viz., S1 (no sulphur), S2 (10 kg S ha-1), S3 (20 kg S ha-1). Application of F3 (30-15-15 kg N-P2O5-K2O ha-1) and S3 (20 kg sulphur ha-1) significantly increased the nitrogen, phosphorus, potassium and sulphur uptake by seed and stover as well as their total uptake by niger as compared to other treatments during both the years of study. Seed yield and protein content (%) of seed of niger were also increased significantly by application of F3 (30-15-15 kg N-P2O5-K2O ha-1) and S3 (20 kg sulphur ha-1) as compared to other treatments during both the years. Interaction effects of NPK (F) and sulphur (S) were found to be significant in respect of seed yield, nitrogen, phosphorus, potassium and sulphur uptake by seed as well as total nitrogen uptake by niger during both the years and phosphorus uptake by niger was found to be significant only in the first year of study.

scholarly journals Sustainable Management of Olive Orchard Nutrition: A Review

Agriculture ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 11 ◽  
Author(s):  
Isaac Zipori ◽  
Ran Erel ◽  
Uri Yermiyahu ◽  
Alon Ben-Gal ◽  
Arnon Dag
Keyword(s):  
Cover Crops ◽  
Oil Quality ◽  
Nutrient Deficiency ◽  
Production Costs ◽  
Plant Responses ◽  
Mineral Fertilization ◽  
Olive Orchard ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Olive Mill

Intensification of olive orchard management entails increased use of fertilizers, especially nitrogen, phosphorus, and potassium. In this review, plant responses to nutritional aspects, as well as environmental considerations, are discussed. Nutrient deficiency impairs production, whereas over-fertilization may reduce yields and oil quality, and increase environmental hazards and production costs. The effect of irrigation on nutrient availability and uptake is very significant. Application of organic matter (e.g., manure, compost) and cover crops can serve as substitutes for mineral fertilization with additional benefits to soil properties. Recycling of the pruned orchard material, olive pomace and olive mill wastewater, as well as the use of recycled wastewater for irrigation, are all potentially beneficial to olive orchard sustainability, but present the risk of environmental pollution. Some considerations regarding optimization of olive orchard nutrition are discussed.

YIELD AND CHEMICAL COMPOSITION OF RAPE IN RESPONSE TO NITROGEN, PHOSPHORUS AND POTASSIUM

1980 ◽  
Vol 60 (2) ◽  
pp. 153-162 ◽  
Author(s):  
S. C. SHEPPARD ◽  
T. E. BATES
Keyword(s):  
Seed Yield ◽  
Total Yield ◽  
Band Placement ◽  
Brassica Napus L ◽  
Soil P ◽  
Seeding Date ◽  
Leaf N Concentration ◽  
Phosphorus And Potassium ◽  
Seed Yields ◽  
Nitrogen Phosphorus

A field trial was conducted for 3 yr to monitor the response of seed rape (Brassica napus L.) to several fertilizer treatments at two seeding dates. The fertilizer treatments consisted of 0–200 kg N/ha, 0–100 kg P/ha and 0–180 kg K/ha broadcast with or without 4.2–7–0 kg N-P-K/ha banded below the seed. Total yield, seed yield, plant height, lodging index, seed contents of oil and N, and leaf contents of N, P, K, Ca, Mg, Mn, Cu, Zn and B were measured. Rape responded to broadcast N with maximum seed yields at 100 kg N/ha independent of seeding date or banded fertilizer. Leaf concentrations of N, P and K were influenced by nitrogen supply but the critical leaf N concentration varied considerably. Response to 7 kg P/ha banded or 25 kg P/ha broadcast occurred when the soil P was less than 10 μg/cc. The critical leaf P concentration was less than 0.2%. Very little response to broadcast K was observed with a soil test of approximately 60 μg K/cc. The early seeding date (late April to early May) increased seed yields an average of 225 kg/ha over the late seeding date (late May) and the band placement of fertilizer increased seed yields an average of 55 kg/ha over comparable treatments without banded fertilizer. Seed yield and leaf elemental composition are presented as functions of broadcast nitrogen, phosphorus and potassium.

scholarly journals Mapping of soil nutrient deficiency in oil palm plantations of Southern Benin

1970 ◽  
Vol 29 (1) ◽  
pp. 141-156
Author(s):  
N.S. Kindohoundé ◽  
L. Nodichao ◽  
N.S.H. Aholoukpè ◽  
A. Saïdou
Keyword(s):  
Oil Palm ◽  
Agricultural Land ◽  
Phosphorus Deficiency ◽  
Nutrient Deficiency ◽  
Potassium Deficiency ◽  
Spatial Dependency ◽  
Hydromorphic Soil ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Southern Benin

Soil degradation poses a threat to sub-Saharan sustainability of agriculture namely because of chemical and physical degradation. The objective of this study was to characterise soil properties in oil palm plantation in the districts of Ouémé and Plateau and develop spatial maps for soil nutrients useful in agricultural land use as a basis for designing soil fertility management strategies. A survey carried out in oil palm (Elaeis guineensis Jacq.) plantations in the southern Benin, revealed mineral deficiency symptoms consequent to poor mineral nutrition of the plant. A total of 428 soil composite samples were collected under farmers’ adult oil palm trees, randomly selected. These oil palm plantations were located on four soil types: Acrisol, Plintics and luvisols, Hydromorphic soil and Vertisols. In total, 370 samples were collected on plantations under Acrisols, 22 samples under Plintics and luvisols, 26 samples under Hydromorphic soil and 10 samples under Vertisols. Geostatistic methods were used to determine the spatial variability; and semi-variogram methods were established using ordinary kriging. A strong spatial dependency for nitrogen, phosphorus, potassium and magnesium was observed; while spatial dependency of calcium was moderated. The map of nutrient deficiency revealed two large areas. The first, included the districts of Bonou, Adjohoun, Sakété, Adja-Ouèrè, and Pobè, where oil palm plants showed an acute nitrogen, phosphorus and potassium deficiency; and the second area of Dangbo, Missérété, Ifangni, Avrankou, Adjarra which presented nitrogen, potassium and slight phosphorus deficiency in the oil palm plantations. Most of the soils under the oil palm plantations showed nitrogen, phosphorus and potassium deficiency.

scholarly journals Effect of different nickel soil contents on cock’s-foot yield and nitrogen, phosphorus and potassium contents

2016 ◽  
Vol 27 (1) ◽  
pp. 15-21
Author(s):  
Beata Kuziemska ◽  
Paulina Klej ◽  
Joanna Trębicka
Keyword(s):  
Brown Coal ◽  
Phosphorus Content ◽  
Organic Materials ◽  
Total Yield ◽  
Nitrogen And Phosphorus ◽  
Culture Experiment ◽  
The Third ◽  
Rye Straw ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

AbstractThis study assessed the influence of liming and waste organic materials on the yield and nitrogen, phosphorus and potassium contents in cock’s-foot (Dactylis glomerata L.) grown on nickel-contaminated soil in the third year of a pot culture experiment. In the experiment, the following factors were taken into consideration: (1) nickel soil contamination (0, 75, 150 and 225 mg Ni·kg−1 of soil); (2) liming (0 Ca and Ca according to 1 Hh of soil) and (3) organic materials (no waste organic materials added, brown coal from a coal mine in Turów and rye straw). Introducing nickel into the soil, regardless of its amount, caused a significant decrease in the total yield of cock’s-foot and increased the nitrogen and potassium contents. Liming caused a significant increase in the yield of cock’s-foot and decrease its potassium content, but it did not clearly differentiate the nitrogen and phosphorus content. The used organic materials (straw and brown coal) caused a decrease in the phosphorus content in the grass biomass.

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