CARROT YIELD AND RECOVERY EFFICIENCY OF NITROGEN, PHOSPHORUS AND POTASSIUM

ABSTRACT The objective of this work was to evaluate the carrot crop recovery efficiency of nitrogen, phosphorus and potassium from fertilizers. Two experiments were conducted in an experimental area in Rio Paranaiba - MG. The cultivar ("Juliana‟) was sown during the summer period and the cultivar "Nayarit‟ during the winter period. In both experiments, the treatments consisted of six fertilization combinations of N, P2O, K2O (kg ha-1): fertilization without N (0-500-450), without P (100-0-450), without K (100-500-0), standard (100-500-450), higher than standard (100-700-600) and lower than standard (100-300-300). The harvest was carried out when most of the roots presented commercial standard well accepted by the consumers. The fresh and dry matter of roots and leaves were quantified, and the yield was calculated based on the fresh matter. The analysis of N, P and K contents in leaves and roots were carried out by harvest time, and the nutrients absorption and exportation were determined based on these contents and on the dry matter of roots and leaves. N, P and K omissions reduced the yield of the cultivar "Juliana‟. For the cultivar "Nayarit‟, only P omission reduced and P and K fertilizations increased the yield. The cultivar "Nayarity‟, which is more productive than "Juliana", absorbed more quantities of N, P and K. Carrot recovery efficiency of nitrogen, phosphorus and potassium is low.

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Contents of macronutrients and growth of ‘BRS Marataoã’ cowpea fertigated with yellow water and cassava wastewater

Ambiente e Agua - An Interdisciplinary Journal of Applied Science ◽

10.4136/ambi-agua.2309 ◽

2019 ◽

Vol 14 (3) ◽

pp. 1 ◽

Cited By ~ 2

Author(s):

Narcísio Cabral de Araújo ◽

Vera Lucia Antunes Lima ◽

Jailton Garcia Ramos ◽

Elysson Marcks Gonçalves Andrade ◽

Geovani Soares de Lima ◽

...

Keyword(s):

Human Urine ◽

Dry Matter ◽

Mineral Fertilizers ◽

Fresh Matter ◽

Number Of Leaves ◽

Phosphorus And Potassium ◽

Set Up ◽

Cassava Wastewater ◽

Nitrogen Phosphorus ◽

Reduction Of Costs

Agricultural utilization of yellow waters associated with cassava wastewater is a sustainable technique, since it allows reduction of costs related to acquisition of industrialized fertilizers and minimizes the environmental pollution caused by the inadequate disposal of these effluents. In this context, this study evaluated the macronutrient macronutrient content and growth of cowpea fertigated with yellow water associated with cassava wastewater and NPK as source of nutrients. The experiment was set up in a greenhouse located at Campus I of the Federal University of Campina Grande. The experimental design was completely randomized, composed of five treatments characterized by: fertigation with mineral fertilizers, in the form of NPK; organic fertigation composed of human urine, cassava wastewater, human urine plus cassava wastewater; and organo-mineral fertigation composed of urine, cassava wastewater and mineral phosphorus, with four replicates. At 36 days after sowing, the following parameters were determined: contents of nitrogen, phosphorus, potassium, sulfur and the variables number of leaves, plant height, stem diameter, leaf area, shoot fresh matter and shoot dry matter. The use of yellow waters promotes significant increases for growth and production variables for nitrogen and potassium contents mainly, as well as for growth and production variables. The contents of nitrogen, phosphorus and potassium were higher than the levels considered as adequate for the cowpea crop. The use of human urine and cassava wastewater have potential to meet the needs for the main macronutrients required by cowpea and the irrigation via fertigation with these biofertilizers positively influences the development of cowpea.

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Absorption and Distribution of Nitrogen,Phosphorus and Potassium inScutellaria baicalensisGeorgi and Their Relationships to Dry Matter Accumulation

Plant Science Journal ◽

10.3724/sp.j.1142.2012.10079 ◽

2012 ◽

Vol 30 (1) ◽

pp. 79 ◽

Cited By ~ 1

Author(s):

Xian-Yan CAO ◽

Wei-Ling WANG ◽

Fu-Li XU ◽

Jing WANG ◽

Xiao-Hu ZHANG

Keyword(s):

Dry Matter ◽

Dry Matter Accumulation ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

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Post-silking accumulation and partitioning of dry matter, nitrogen, phosphorus and potassium in maize varieties differing in leaf longevity

Field Crops Research ◽

10.1016/j.fcr.2013.01.020 ◽

2013 ◽

Vol 144 ◽

pp. 19-27 ◽

Cited By ~ 71

Author(s):

Peng Ning ◽

Sa Li ◽

Peng Yu ◽

Yu Zhang ◽

Chunjian Li

Keyword(s):

Dry Matter ◽

Leaf Longevity ◽

Maize Varieties ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

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Studies of the chemical composition of kales and rapes. I. The kales

The Journal of Agricultural Science ◽

10.1017/s002185960003673x ◽

1959 ◽

Vol 52 (2) ◽

pp. 230-237 ◽

Cited By ~ 11

Author(s):

D. J. C. Jones

Keyword(s):

Crude Protein ◽

Dry Matter ◽

Chemical Constituents ◽

The Other ◽

Winter Period ◽

Crude Fibre ◽

Whole Plant ◽

Phosphorus And Potassium ◽

Plant Basis ◽

Matter Basis

1. Four varieties of marrow stem kale, three of thousand headed kales, Hungry Gap Kale and Rape-Kale were grown at three centres in mid-Wales. They were sampled in the early winter period and separate leaf and stem samples analysed for the proximate constituents and minerals.2. Leaf to stem ratios were measured on both a green and dry matter basis and the latter values used to calculate whole plant values for the chemical constituents.3. The leaves of the marrow stem kales were higher in dry matter than the stems, except in the case of the Purple Stem Kale. This variety resembled the thousand headed and rape-type kales in having a higher dry matter in the stems. On a dry matter basis, the leaves of all the varieties were richer than the stems in ether extract, crude protein, total ash and all the minerals except potassium and sodium. These elements occurred to a greater extent in the stems of the fleshy stemmed marrow stem kales than in the leaves. The stems were higher in crude fibre and nitrogen-free extractives.4. The leaves of the rape-type kales were higher than those of the other varieties in silica, phosphorus and potassium. They were the best source of phosphorus on a whole plant basis. The marrow stem kales had considerably higher leaf and stem values for sodium and were markedly superior to the other varieties as a source of the element.

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Effects of Nitrogen, Phosphorus and Potassium Fertilisers on the Dry Matter Yield and Chemical Composition ofAmaranthus HybridusSubspeciesHybridus(Green Head)

East African Agricultural and Forestry Journal ◽

10.1080/00128325.1993.11663188 ◽

1993 ◽

Vol 59 (2) ◽

pp. 131-136 ◽

Cited By ~ 1

Author(s):

E. Adipala ◽

J.S. Mugerwa

Keyword(s):

Chemical Composition ◽

Dry Matter ◽

Dry Matter Yield ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

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Comparison of logistic, energy and exploitative parameters of compost and manure application by spreaders

Research in Agricultural Engineering ◽

10.17221/37/2017-rae ◽

2017 ◽

Vol 63 (Special Issue) ◽

pp. S33-S39

Author(s):

Souček Jiří ◽

Pražan Radek ◽

Roy Amitava ◽

Plíva Petr ◽

Jelínek Antonín ◽

...

Keyword(s):

Working Conditions ◽

Dry Matter ◽

Agricultural Land ◽

Matter Content ◽

Organic Fertilizers ◽

Dry Matter Content ◽

Volume Weight ◽

Lower Volume ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

This article deals with comparison of composts and manure use from the viewpoint of handling, transport and application on agricultural land. The published values were established by measurements under working conditions and afterwards converted on the basis of the content of nutrients defined in laboratory. Compost contained a greater share of nitrogen, phosphorus and potassium and had higher dry matter content and lower volume weight. Direct consumed energy expressed by recalculation of the consumed diesel fuel in case of composts moved from 5.12 MJ/kg (potassium) up to 16.19 MJ/kg (phosphorus). In case of manure it was higher and moved from 10.49 MJ/kg (nitrogen) up to 29.79 MJ/kg (phosphorus). The greatest share in energy consumption occupies transport, which was considered uniformly at the distance of 5 km. The study confirmed the feasibility of use of compost in agriculture as a partial substitute of conventional organic fertilizers; for its handling, transport and application the standard mechanization used for manure may be utilized.

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N, P and K on organic farms: herbage and cereal production, purchases and sales

The Journal of Agricultural Science ◽

10.1017/s0021859600076516 ◽

1993 ◽

Vol 120 (3) ◽

pp. 353-360 ◽

Cited By ~ 13

Author(s):

S. M. Fowler ◽

C. A. Watson ◽

D. Wilman

Keyword(s):

Dry Matter ◽

Additional Data ◽

Cereal Crops ◽

Organic Farms ◽

Efficient Conversion ◽

Cereal Production ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus ◽

Clover Content

SUMMARYYields of dry matter, nitrogen, phosphorus and potassium in herbage and cereals from fields representing different stages of the rotation were recorded on two organic farms in 2 years. Amounts of N, P and K purchased and sold were also recorded on these farms.Some additional data was obtained from three other organic farms. Herbage production was very satisfactory, whether fields were grazed or cut. The proportion of clover in sown swards was, in most cases, satisfactory to high, but the clover content was very low in a few fields. The yields of cereals were about equal to or below the average obtained on farms using fertilizer and other agrochemical inputs. Manure was normally applied to the leys, which were the fertility-building part of the rotation, rather than to the cereal crops. Leaching of K from manure heaps was considerable.Purchases of N, P and K (mainly in manure) seemed excessive on one of the farms. On one of the farms studied in less detail, less P and K were purchased than were sold. More attention could be given to the balance between purchases and sales of N, P and K and to the efficient conversion of N into saleable produce.

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Dry matter production and partitioning in potato plants subjected to combined deficiencies of nitrogen, phosphorus and potassium

Annals of Applied Biology ◽

10.1111/j.1744-7348.2003.tb00288.x ◽

2003 ◽

Vol 143 (2) ◽

pp. 215-229 ◽

Cited By ~ 22

Author(s):

P D JENKINS ◽

S MAHMOOD

Keyword(s):

Dry Matter ◽

Dry Matter Production ◽

Potato Plants ◽

Matter Production ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

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Relationships between production, nutrient accumulation, and chlorophyll synthesis in an Eleocharis quadrangulata population

Canadian Journal of Botany ◽

10.1139/b71-129 ◽

1971 ◽

Vol 49 (6) ◽

pp. 883-888 ◽

Cited By ~ 17

Author(s):

Claude E. Boyd ◽

David H. Vickers

Keyword(s):

Standing Crop ◽

Dry Matter ◽

Aquatic Macrophytes ◽

Chlorophyll Synthesis ◽

Early Spring ◽

Chemical Substances ◽

Net Productivity ◽

Matter Production ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

Maximum standing crop in an Eleocharis quadrangulata population was estimated at 881 g dry wt./m2. Net daily productivity was highest during May when about 50% of the total standing crop was produced. Net productivity for the entire period of vegetative increase, April 1 to August 4, was 7.0 g/m2 per day. The accumulation of several nutrients, especially nitrogen, phosphorus, and potassium was proportionately more rapid than dry matter production during early spring growth. Net chlorophyll synthesis was also greater during early spring. Patterns of change in dry matter and chemical substances in the E. quadrangulata population were similar to those in populations of other emergent aquatic macrophytes.

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