scholarly journals Nitrogen sources on yield, mineral nutrition and bromatology of Cyclanthera pedate

2020 ◽  
Vol 38 (1) ◽  
pp. 78-82
Author(s):  
Samuel V Valadares ◽  
Rafael V Valadares ◽  
Candido A Costa ◽  
Ernane R Martins ◽  
Luiz A Fernandes

ABSTRACT Caygua fruits (Cyclanthera pedata) are used both in cooking and for medicinal purposes. However, few studies on this species, considered a non-conventional vegetable, can be found in literature. This study aimed to assess the responses of caygua crop to green manure and mineral nitrogen fertilization, in relation to marketable fruit productivity, nutrient content in leaves and fruits and bromatological composition. The study was carried out in a randomized block design with four treatments and five replicates: 1) control (without nitrogen); 2) 60 kg ha-1 nitrogen (urea form); 3) green manuring using Cajanus cajans and 4) green manuring using Crotalaria juncea. The plots consisted of three caygua lines with four plants per line (spacing 2x1 m). In the treatments using green manure, three lines of these respective legumes were cultivated. We evaluated marketable fruit productivity, nutrient contents in fruits and leaves and bromatological composition of the fruits. Production of caygua fruits was higher in the treatment consisting of urea application (23.6 t ha-1), followed by Crotalaria juncea (15.6 t ha-1), Cajanus cajans (14.8 t ha-1) and control (9.2 t ha-1). Treatments did not influence the nutrient contents in fruits and leaves and the bromatological composition. However, in relation to higher productivity, the amounts of nutrients absorbed by plants and accumulated in fruits were higher in treatments using mineral fertilization due to the higher yield. The bromatological analysis of fruits showed considerable contents of crude protein and ether extract, highlighting the potential of this species to human diet.

Author(s):  
Reshma Das ◽  
Sheeba Rebecca Isaac

Background: Nutritional security overrides food security and the present day agriculture focusses more on sustainable and regenerative agriculture in which use of organic inputs assumes prime significance. The search for viable alternatives to the chemical sources of nutrients demands production of the organic nutrient inputs in large quantities. Organic nutrition is expensive on account of the low nutrient contents and large quantum needed and hence unless produced in situ, turn out to be highly expensive. Organic wastes in the form of crop residues are available in plenty in agricultural fields. Tree leaf litter is another biowaste considered as menace under off farm situations. Rapid resource recycling techniques offer immense potential for the safe disposal of the litter and conversion to quality manures. In this background an experiment was conducted to assess the efficacy of litter composts as nitrogen sources in vegetable cow pea (Vigna unguiculata subsp. unguiculata) in terms of the agronomic efficiencies and nutrient uptake. Methods: The field experiment was conducted in College of Agriculture, Vellayani, Thiruvananthapuram, Kerala Agricultural University during December 2018 to March 2019 in randomized block design with three replications. The treatments included the compost of the two tree species litter prepared by composting with different decomposer organisms and additives and enriched with the biofertilizer, PGPR Mix I. Result: The results of the experiment revealed the highest vegetable yields (7.80 t ha-1) in the treatment involving mango leaf litter composted with glyricidia leaves and earthworms on par with Kerala Agricultural University package of practices recommendation for cowpea and it was 2.7 times that in absolute control. The total nutrient uptake was the highest with mango litter co-composted with poultry manure as nutrient input. Agronomy efficiency indices, in terms of nitrogen were significantly superior for the treatments including mango litter composts and hence prove a suitable nutrient input in vegetable cowpea cultivation.


2016 ◽  
Vol 9 (1) ◽  
pp. 99-108 ◽  
Author(s):  
CA Afroz ◽  
MAH Shimul ◽  
M Ikrum ◽  
MA Siddiky ◽  
MA Razzaque

The experiment was conducted at Horticulture Research Centre, Gazipur, Bangladesh, to study the effects of N, P, K, and S on growth, yield and nutrient content of strawberry following Randomized Complete Block Design (RCBD) method. There were 4 levels of different nutrients and there was a positive impact of each fertilizer combinations on yield, yield parameters and nutrient contents of BARI Strawberry except control treatment. The highest values of plant height (25.60 cm); number of leaves (21.66), flowers (125.33), fruits (12.35),destroyed fruits (11), fruit weight (215.10 g) plant-1 and fruit length (4.16 cm), fruit diameter (3.41cm), individual fruit weight (17.85 g) and fruit yield (11.50 t ha-1) were found in treatment of 115,40,110 and 25 kg ha-1NPKS, respectively. Among the fertilizers, the single effect of N (115 kg ha-1), P (40 kg ha-1), K (110 kg ha-1) and S (25 kg ha-1) gave maximum growth and yield of strawberry. The highest concentration of N, P, K and S were found in shoot and fruit of strawberry when N, P, K and S fertilizers were used 140,60,135 and 35 kg ha-1, respectively.J. Environ. Sci. & Natural Resources, 9(1): 99-108 2016


2021 ◽  
Vol 58 (4) ◽  
pp. 525-529
Author(s):  
Latha A ◽  
Chijina K ◽  
Asha V Pillai

The field experiments were conducted in farmer's field at five locations each of kole lands to study the effect of Magnesium (Mg) on yield and soil and plant nutrient status of rice during 2012-2013 and 2013-2014. The experiment was laid out in randomized block design with three replications. The treatments comprised of different levels of Mg viz; 40, 60, 80, 100, and 120 kg Magnesium sulphate(MgSO4)/ha along with control. Observations on growth characters yield attributes, yield and soil and plant nutrient status were recorded. The results revealed that application of 100 kg MgSO4 / ha recorded the maximum number of panicles/m2 (419.13), number of grains/panicle (109.36), thousand grain weight (28.78 g), grain (9.27 t/ha) and straw yield (9.04 t/ha) of rice. The results of pooled data on plant and soil nutrient status revealed that application of magnesium had a positive effect on nutrient content and availability of nutrients in soil. A significant positive correlation was also noticed between Mg application, yield attributes, yield and nutrient contents. The study concluded that application of 100 kg MgSO4 / ha was found to be optimum for correcting the deficiency in Mg deficient areas of kole lands under below sea level farming.


2021 ◽  
Vol 22 (2) ◽  
Author(s):  
Sayyidah Afridatul ◽  
MUHAMAD SYUKUR ◽  
TRIKOESOEMANINGTYAS TRIKOESOEMANINGTYAS ◽  
AWANG MAHARIJAYA

Abstract. Ishthifaiyyah SA, Syukur M, Trikoesoemaningtyas, Maharijaya A. 2021. Agro-morphological traits and harvest period assessment of winged bean (Psophocarpus tetragonolobus) genotypes for pods production. Biodiversitas 22: 1069-1075. Winged bean (Psophocarpus tetragonolobus) is an underutilized crop in Indonesia. Winged bean varieties for pods productions not only must have high productivity and nutrient contents, but also have a long harvest period. This research aimed to evaluate agro-morphological traits and harvest period of eighth-generation winged bean genotypes. Twenty genotypes of winged beans were evaluated using randomized complete block design (RCB) with three replications in Bogor, Indonesia. Several qualitative and quantitative traits were evaluated from each genotype. The results showed that there were variations among winged bean genotypes which were based on qualitative traits as well as the color of stem, calyx, corolla, pod, and pod wings. Purple coloration in the calyx of P1 and H3U genotypes was known to correspond with the purple color in stem, corolla, pod, and pod wings. The highest yield among F8 genotypes was found in H2 (6.69 to ha-1), similar to P2. However, the longest harvest period among F8 genotypes was found in H1U-2 (78 days). This study revealed that harvest period had positive correlation with the leaflet size. Based on nutrient content, H3U and L2 were considered as the genotypes with the highest protein and fiber content respectively among F8 genotypes.


2017 ◽  
Vol 15 (3) ◽  
pp. 499
Author(s):  
PAULO CÉSAR TIMOSSI ◽  
HILTON ROSA DA SILVA JUNIOR ◽  
SUZETE FERNANDES LIMA ◽  
RONALDO CASTRO ◽  
DIEIMISSON PAULO ALMEIDA

RESUMO- A adubação de sistema aliada à adubação verde pode aumentar a disponibilidade de nitrogênio no solo.Objetivou-se na pesquisa investigar se a disponibilidade antecipada de fertilizantes orgânico e mineral sobre o cultivode Crotalaria spectabilis e Crotalaria juncea influência nas características de produção da cultura do milho. Odelineamento experimental adotado foi o inteiramente casualizado, disposto em esquema fatorial 2 x 4, no qual o fatorA foi formado por duas espécies de adubos verdes (Crotalaria spectabilis e Crotalaria juncea) e o fator B foi formadopor três formas de fertilização (PK, NPK e orgânica) e pela ausência de fertilização, com oito repetições. Foramrealizadas avaliações das características agronômicas e produtivas da cultura do milho. O número de fileiras e númerosde grãos por fileira não diferiu entre as formas de fertilização. A maior altura de plantas de milho, altura de inserçãode espiga e produtividade de grãos foi obtida na área cultivada anteriormente com C. spectabilis. A fertilização comNPK e orgânica, com cama-de-aves, resultou em maior produtividade, porém com 800 kg ha-1 de NPK, valor superiorao recomendado. Conclui-se que a antecipação de fertilização do solo, associado ao cultivo de adubos verdes é viávelpara o cultivo da cultura do milho, a C. spectabilis proporciona maior produtividade de grãos de milho em sucessãoe a adubação orgânica, com cama-de-aves, é tão eficiente quanto à adubação mineral com NPK quando antecipada.Palavras-chave: Crotalaria spectabilis, Crotalaria juncea, cama-de-aves, adubação verde, adubação de sistema.PRE-FERTILIZATION WITH ORGANIC AND MINERAL FERTILIZERS ASSOCIATED WITH CROTALARIES IN MAIZEABSTRACT- The fertilization of system combined with green manure can enhance the availability of soil nitrogen.This study aimed to research whether the anticipated availability of organic and mineral fertilizers in the cultivationof Crotalaria spectabilis and Crotalaria juncea affects the characteristics of production of corn crop. The completelyrandomized design (CRD) was used, with eight replications, in factorial arrangement 2 x 4, in which the factor A wasformed by two species of green manure (Crotalaria spectabilis and Crotalaria juncea) and the factor B comprisedthree forms of fertilization (PK, NPK and organic) and the absence of fertilization. Assessments of agronomic andyield characteristics of corn crop were conducted. As conclusion,the anticipation of soil fertility, associated with greenmanure cultivation is viable for cultivation of corn crop, the C. spectabilis provides increased productivity of the corncrop, and the organic fertilization with bed of birds is as efficient as the mineral fertilization with NPK.Keywords: Crotalaria spectabilis, Crotalaria juncea, bed-of-birds, green manure, system fertilization.


2016 ◽  
Vol 46 (6) ◽  
pp. 970-975 ◽  
Author(s):  
Natanael Santiago Pereira ◽  
Ismail Soares ◽  
Fábio Rodrigues de Miranda

ABSTRACT: The use of leguminous green manure can be an alternative for the region agricultural systems due to its ability to incorporate significant amounts of nutrients into the soil through decomposition and nutrient release from biomass. This study aimed to evaluate the decomposition rates and nutrient release of six leguminous green manure species ( Crotalaria juncea , Canavalia ensiformes , Cajanus cajan , Crotalaria spectabilis , Dolichos lablab and Mucuna deeringiana ) in an area of the Jaguaribe-Apodi agricultural region, Brazil. Experiment was carried out under field conditions in a randomized block design with five replications. Decomposition and nutrient release from leguminous biomass were monitored by sampling at 30, 60, 90, 120, 150 and 180 days after installing litter bags. In general, Crotalaria spectabilis and Canavalia ensiformes showed higher decomposition and nutrient release rates and they are the most promising for the region in the conditions of this study. However, for greater persistence of residues in the soil, Crotalaria juncea is more recommended.


Revista CERES ◽  
2017 ◽  
Vol 64 (6) ◽  
pp. 600-606
Author(s):  
Ellen Rúbia Diniz ◽  
Thiago de O Vargas ◽  
Amanda F Guedes ◽  
Ricardo Henrique Silva Santos ◽  
Segundo Urquiaga ◽  
...  

ABSTRACT Amounts of N from green manures not absorbed in the first cycle can be absorbed by the subsequent crops. Therefore, it is important to quantify and monitor the residual effects of green manure to increase the agronomic benefits of its use in cropping systems. Our purpose was to study the residual effect of doses of the Crotalaria juncea green manure applied in broccoli crop in the zucchini-maize succession. This study was carried out in a crop succession system organized in three crops, with seven treatments and four major doses of green manure as 0, 3, 6, and 9 t ha-1. The control treatments consisted of a mineral fertilization, a treatment with 25 t ha-1 compost, and another as absolute control without organic compost or mineral fertilizer. The experimental plot consisted of five rows spaced 0.8 m with 3 m in length. The experimental design was a completely randomized block with four replications in a split-plot scheme in time for growth with variables of adjustment of statistical models by the response surface methodology. With the highest dose of green manure, the yield of zucchini plants was greater than the yield with 25 t ha-1 compost control and similar with mineral fertilizer. As for the maize yield in the dose of 9 t ha-1 green manure, the yield was superior only to absolute control. There was a residual effect of C. juncea mass, which was applied in broccoli crop for growth and yield of zucchini and maize grown in succession. The residual effect is dependent on the amount of weight of C. juncea applied, with the greatest effects in larger doses.


2018 ◽  
Author(s):  
Jayalakshmi Mitnala

A field experiment was conducted for two consecutive years (2011-2012 and 2012-2013) on fine texture soils of Agricultural College Farm, Bapatla to find out the effect of different sources of nutrients on secondary (Ca and Mg) and micro nutrient (Fe, Mn, Cu and Zn) uptake by rice at various growth periods. The experiment was laid out in a randomized block design in kharif season with four treatments and replicated five times. The treatments consisted of M1 (RDF- Control), M2 (10t FYM ha-1 + RDF), M3 (1.5t vermicompost ha-1 + RDF), M4 (Green manuring + RDF). The nutrient content in rice at various growth periods was significantly increased with the application of 100% NPK in combination with FYM @ 10t ha-1. However, it was on par with that of green manuring together with 100% NPK during both the years of the study.


2019 ◽  
Vol 17 (1) ◽  
pp. 6-10
Author(s):  
Herilimiansyah Herilimiansyah ◽  
Nur Kumalasari ◽  
Luki Abdullah

The objective of this experiment was to evaluate the cultivation, production and quality systems of Asystasia gangetica T. Anderson as forage in palm oil plantations. This research was arranged in a factorial randomized block design with 2 factors, i.e. palm plantation ages (6 and 8 years old) and different plant spacing (10x10 cm, 25x25cm, and 40x40cm). Variables observed were plant height, number of leaves, number of primary and secondary branches, leaf length and width, biomass production, and nutrient contents. Spacing was significantly affected (p<0.05) on increasing height plant, number of primary and secondary branches, number of leaves, leaf width and length, and biomass production. The spacing also has a significant effect (p<0.05) on nutrient content such as dry matter and crude fiber. The heighest plants average at plant spacing of 10x10 cm was 66.19 cm, the best number of primary and secondary branches at spacing of 25x25 cm were 2 and 10 branches, the average number of the best number of leaves at spacing of 25x25 cm was 80 leaflets, leaveslength and width at spacing of 10x10 cm were 12.49 and 4.29 cm, while the best biomass production at spacing of 10x10 cm was 2766 g. The research concluded that in order to obtain high crop production, the best plant spacing was 10x10 cm under 6 years old of palm plantation, whereas the best nutrient quality was on 25x25 cm spacing.


2017 ◽  
Vol 22 (3) ◽  
pp. 139-148
Author(s):  
Jauhari Syamsiyah ◽  
Sumarno Sumarno ◽  
Suryono Suryono ◽  
Nur Echsan Muhamat Rajab ◽  
Ida Aryaningrum

Soil fertility is a crucial factor determining the growth and yield of plants. The increase of nutrient content and availability in soil can be achieved by fertilization. A field experiment was conducted using a Randomized Completely Block Design (RCBD) with two factors and three replications in order to study the effects of Mixed Source of Fertilizer (MSF) application on the nutrient contents in Vertisol and its relationship to the growth and yield of mustard. The first factor was the three MSF formulas (F1, F2, F3) and second factor was the doses of MSF (0; 2.5; 5.0; 7.5; 10 Mg ha-1) applied to the soil. At the end of the experiment, the soil pH, CEC, organic-C, total-N, available-P and exchangeable-K contents were measured. The results show that there are no significant differences on the soil chemical characteristics, such as pH, organic-C content, available-P, exchangeable-K, -Ca and -Mg measured after application of different MSF formulas to the soil. Meanwhile, the increase of MSF doses applied to the soil significantly increases organic-C content, total-N, available-P and exchangeable-K in the soil. The significant increase of available-P (by 29.13%) and total-N (by 24.1%) occured after application of MSF at 5.0 Mg ha-1 and the increase of exchangeable-K (by 50%) is achieved after application of 7.5 Mg ha-1, in comparison to that without MSF application. The height and fresh weight of mustard increase in accordance with the increase of MSF doses applied. The application of 10.0 Mg ha-1 MSF results in the highest height and fresh weight of the mustard up to 63.9% and 620%, respectively. The height and fresh weight of mustard are positively correlated to the total-N, available-P and exchangeable-K in the soil. The MSF is an alternative fertilizer that can be used to improve Vertisol fertility and plant growth. 


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