scholarly journals Relationships between Water Balance and the Growth and Yield of Ratoon Sugarcane on Minamidaito Island

2021 ◽  
Vol 90 (3) ◽  
pp. 324-333
Author(s):  
Kenta Watanabe ◽  
Hiroo Takaragawa ◽  
Yasunori Fukuzawa ◽  
Masami Ueno ◽  
Yoshinobu Kawamitsu
Keyword(s):  
Water Balance ◽  
Growth And Yield ◽  
Ratoon Sugarcane

scholarly journals CRESCIMENTO E RENDIMENTO AGRÍCOLA DA CULTURA DO MILHO SOB DIFERENTES DISPONIBILIDADES HÍDRICAS

Irriga ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 328-342
Author(s):  
MARCELO SOARES AUGUSTO ◽  
SAMUEL SILVA ◽  
JORGE LUIZ XAVIER LINS CUNHA ◽  
ANA BEATRIZ DE ALMEIDA MOURA ◽  
ANA CAROLINE DE ALMEIDA MOURA ◽  
...  
Keyword(s):  
Water Balance ◽  
Leaf Area Index ◽  
Statistical Design ◽  
Canopy Height ◽  
Growth And Yield ◽  
Maize Crop ◽  
Area Index ◽  
Agricultural Yield ◽  
The One ◽  
Planting Season

CRESCIMENTO E RENDIMENTO AGRÍCOLA DA CULTURA DO MILHO SOB DIFERENTES DISPONIBILIDADES HÍDRICAS     MARCELO AUGUSTO DA SILVA SOARES1; SAMUEL SILVA2; JORGE LUIZ XAVIER LINS CUNHA3; ANA BEATRIZ DE ALMEIDA MOURA4; ANA CAROLINE DE ALMEIDA MOURA5 E ALLAN HEMERSON DE MOURA6   1 Doutorando em Produção Vegetal, Departamento de Tecnologia da Produção, Universidade Federal de Alagoas (UFAL), Av. Lourival Melo Mota, S/N, Tabuleiro do Martins, 57072-970, Maceió, Alagoas, Brasil, [email protected]. 2 Professor do Instituto Federal de Alagoas (IFAL), Campus Piranhas, Av. Sergipe, 1477, 57460-000, Piranhas, Alagoas, Brasil, [email protected] 3 Professor do Centro de Engenharia e Ciências Agrárias (CECA), Universidade Federal de Alagoas (UFAL), Av. Lourival Melo Mota, S/N, Tabuleiro do Martins, 57072-970, Maceió, Alagoas, Brasil, [email protected] 4 Graduando em Zootecnia pelo Centro de Engenharia e Ciências Agrárias (CECA), Universidade Federal de Alagoas (UFAL), Av. Lourival Melo Mota, S/N, Tabuleiro do Martins, 57072-970, Maceió, Alagoas, Brasil, [email protected] 5 Graduando em Agronomia pelo Centro de Engenharia e Ciências Agrárias (CECA), Universidade Federal de Alagoas (UFAL), Av. Lourival Melo Mota, S/N, Tabuleiro do Martins, 57072-970, Maceió, Alagoas, Brasil, [email protected] 6 Mestrando em Produção Vegetal, Departamento de Tecnologia da Produção, Universidade Federal de Alagoas (UFAL), Av. Lourival Melo Mota, S/N, Tabuleiro do Martins, 57072-970, Maceió, Alagoas, Brasil, [email protected].     1 RESUMO   O objetivo deste trabalho foi avaliar o efeito dos déficits e excessos hídricos no crescimento e rendimento agrícola do milho em diferentes épocas de cultivo na região de Rio Largo, AL. Para isso, foi conduzido um experimento no Campus de Engenharia e Ciências Agrárias da Universidade Federal de Alagoas. O delineamento foi em blocos casualizados, com quatro tratamentos e cinco repetições (E1= 28/05/14, E2-11/06/14, E3-25/06/14 e E4- 23/07/14). A primeira época de plantio foi a que apresentou maior altura do dossel (2,25 m), índice de área foliar (4,0 m2 m-2) e rendimento agrícola (8,03 t ha-1). A E4 apresentou a menor altura do dossel (0,9 m) e a menor produtividade agrícola foi observada na E3 (5,9 t ha-1). Isso aconteceu porque com base no balanço hídrico da cultura, quando o plantio é realizado até o primeiro decêndio de junho há uma melhor distribuição da chuva o que maximiza o potencial da cultura.   Palavras-chave: produtividade de grãos, precipitação pluvial, balanço hídrico     SOARES, M. A. S.; SILVA, S.; CUNHA, J. L. X. L.; MOURA, A. B A.; MOURA, A. C. A.; MOURA, A. H. GROWTH AND YIELD OF MAIZE CROP UNDER DIFFERENT WATER AVAILABILITIES       2 ABSTRACT   This work aimed to evaluate the effects of hydric deficits and excesses on growth and yield of corn  at different times of cultivation in the region of Rio Largo, Al. For this, an experiment was conducted at the Campus of Engineering and Agricultural Sciences of the Federal University of Alagoas. The statistical design was randomized blocks, with four treatments and five replications (E1 = 28/05/14, E2-11 / 06/14, E3-25 / 06/14, and E4- 23/07/14). The first planting season was the one with the highest canopy height (2.25 m), leaf area index (4.0 m2 m-2) and agricultural yield (8.03 t ha-1). The E4 had the lowest canopy height (0.9 m) and the lowest agricultural yield was observed in the E3 (5.9 t ha-1). This happened because based on the water balance of the crop, when planting is carried out until the first ten days of June, there is a better distribution of rain, which maximizes the crop's potential.   Keywords: yield of grains, rainfall, water balance

scholarly journals Effect of rainfall on growth and yield of rice in Konkan coast

MAUSAM ◽  
2022 ◽  
Vol 44 (2) ◽  
pp. 143-146
Author(s):  
A. CHOWDHURY ◽  
H.P. DAS
Keyword(s):  
Water Balance ◽  
Early Onset ◽  
Rice Yield ◽  
Early Growth ◽  
Growth And Yield ◽  
Growth Phases ◽  
Total Rainfall ◽  
Accurate Indication ◽  
Paddy Yield

In this Study, relationship between rainfall and rice yield has been investigated in Ratnagiri and Thane districts of Maharashtra using 37 year's (1951.1987) data. Weekly water balance has been worked out in developing a yield index and its association with yield examined. Planting rates have been calculated assuming two categories of empirical rainfall accumulations of 450 and 500 mm. The yields were correlated with rainfall during selected growth phases, total rainfall, the yield index and the technological trend. Effects of late or early onset on yield has also been examined.   It appears that 450 mm rainfall accumulation from Ist June gives a ~reasonably accurate indication of transplanting paddy in Konkan. Technology seems.. to have much influence on the paddy yield. Results also reveal that rainfall during early growth phases is significantly related to the yield the date of planting was not found to/have a determining influence on the yield.

scholarly journals Climatological water balance and climate classification of thornthwaite and mather for benin, west Africa, in 1970-2015 period

2021 ◽  
Vol 29 ◽  
pp. 291-302
Author(s):  
Vidéhouénou Ariane Lucrèce Todote ◽  
Gustavo Bastos Lyra ◽  
Marcel Carvalho Abreu
Keyword(s):  
Water Balance ◽  
Potential Evapotranspiration ◽  
Growth And Yield ◽  
Boreal Summer ◽  
Boreal Winter ◽  
Atmospheric Conditions ◽  
Climate Classification ◽  
The North ◽  
Rainfed Farming ◽  
Water Surplus

The climate is described by the predominant atmospheric conditions in a particular region and influences several human activities. In agriculture, water availability defines the growth and yield of crops and can be obtained by the water balance. The climate classification also aids to identify suitable areas for agricultural crops. Thus, the aim of this work was to elaborate the water balance and perform the climate classification through the method of Thornthwaite and Mather (1955) for six weather stations (Bohicon, Cotonou-Airport, Kandi-Airport, Natitingou, Parakou-Airport and Savè) located in Benin, Western Africa. For the execution of this work, monthly series of precipitation and potential evapotranspiration from 1970 to 2015 were used. Once the monthly water balance of the six seasons was elaborated, it was observed that the rainy (dry) period decreases (increases) from the coast (Cotonou-Airport) to the north of Benin (Kandi-Airport) and, coincides with Boreal summer and part of autumn (Boreal winter and part of spring). Regarding the climate classification, the Cotonou-Airport station was characterized as Subhumid Megathermal climate with moderate winter deficit (C2wA’a’); the stations of Bohicon and Savè presented similar climate classification with Subhumid Dry Megathermal climate with low or without water surplus (C1dA’a’); Natitingou with Subhumid Dry climate Megathermal with large summer surplus (C1s2A’a’); Parakou-Airport with Subhumid climate Dry Megathermic with moderate summer surplus (C1sA’a’) and, Kandi-Airport presented Semi-arid Megathermal climate with moderate summer surplus (DsA’a’). In Benin, subsistence and rainfed farming showed greater risk in the north of the country due to the decrease in the rainy season and the water surplus from the coast (south) to the north of the country, with the increase in aridity.

Growth and yield of okra (Abelmoschus esculentus (L.) Moench) grown in the marginal upland area of Sta. Rita, Samar as influenced by different planting densities and mulching materials

2017 ◽  
pp. 44-54
Author(s):  
Zenaida Gonzaga ◽  
Warren Obeda ◽  
Ana Linda Gorme ◽  
Jessie Rom ◽  
Oscar Abrantes ◽  
...  
Keyword(s):  
Bare Soil ◽  
Abelmoschus Esculentus ◽  
Growth And Yield ◽  
Planting Density ◽  
Rice Hull ◽  
Plastic Mulch ◽  
Lady’S Finger ◽  
Materials Used ◽  
Set Up ◽  
A Minor

Okra or Lady’s finger, botanically known as Abelmoschus esculentus (L.) Moench, is a tropical and sub-tropical indigenous vegetable crop commonly grown for its fibrous, slimy, and nutritious fruits and consumed by all classes of population. It has also several medicinal and economic values. Despite its many uses and potential value, its importance is under estimated, under-utilized, and considered a minor crop and little attention was paid to its improvement. The study was conducted to evaluate the effects of different planting densities and mulching materials on the growth and yield of okra grown in slightly sloping area in the marginal uplands in Sta. Rita, Samar, Philippines. A split-plot experiment was set up with planting density as main plot and the different mulching materials as the sub-plot which were: unmulched or bare soil, rice straw, rice hull, hagonoy and plastic mulch. Planting density did not significantly affect the growth and yield of okra. Regardless ofthe mulching materials used, mulched plants were taller and yielded higher compared to unmulched plants. Moreover, the use of plastic mulch resulted to the highest total fruit yield. The results indicate the potential of mulching in increasing yield and thus profitability of okra production under marginal upland conditions.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

Water balance, drought stress and yields for rainfed field crop rotations under present and future conditions in the Czech Republic

2015 ◽  
Vol 65 ◽  
pp. 175-192 ◽  
Author(s):  
P Hlavinka ◽  
KC Kersebaum ◽  
M Dubrovský ◽  
M Fischer ◽  
E Pohanková ◽  
...  
Keyword(s):  
Czech Republic ◽  
Drought Stress ◽  
Water Balance ◽  
Crop Rotations ◽  
Field Crop ◽  
The Czech Republic
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