Studies on Maize (Zea mays) at Bunda, Malawi. III. Yield in Rotations with Pasture Legumes

1990 ◽  
Vol 26 (3) ◽  
pp. 263-271 ◽  
Author(s):  
D. MacColl
Keyword(s):  
Zea Mays ◽  
Beneficial Effect ◽  
Residual Effect ◽  
The Other ◽  
The Third ◽  
Pasture Legumes

SUMMARYYields of maize were increased when they followed successfully established pasture legumes in two rotation experiments. The largest increases were obtained after silverleaf and were equivalent in one experiment to the effects of about 30 kg N ha−1a−1over four years and in the other experiment to those of 40 kg N ha−1a−1over three years. The largest beneficial effect of some of the legumes was on the first crop of maize but in others did not occur until the third or fourth crop. The possible reasons for the different patterns of residual effect are discussed in relation to the nature of the legume residues, the quality of the seedbed following the legumes, and rainfall

Elizabeth Bishop and ‘a bad case of the Threes’

2019 ◽  
pp. 164-176
Author(s):  
Katrina Mayson
Keyword(s):  
Third Space ◽  
The Other ◽  
Elizabeth Bishop ◽  
Gerard Manley Hopkins ◽  
Safe Place ◽  
Holy Trinity ◽  
The Third ◽  
Lyric Poet ◽  
Structural Manipulation

This chapter explores aspects of Bishop’s poetics through the lens of the number three, contributing to the debate about Bishop’s place as a ‘lyric’ poet. It does this by charting the myriad ways Bishop used the number three and all its connotations in her poetry. These range from her use of the tercet form to a structural manipulation of time and perspective. Threes are everywhere in Bishop, ranging from the influence of Gerard Manley Hopkins, the Holy Trinity and Dante to ekphrastic notions of shadow boxes in ‘Objects & Apparitions’. That three underpins Bishop’s aphoristic ear is most clearly heard in her prose and letters, for example in her famous statement that ‘The three qualities I admire in the poetry I like best are: Accuracy, Spontaneity, Mystery’ (in ‘Writing Poetry is an Unnatural Act’). Bishop scholars and readers often identify with the quality of reticence in her poetry, often referred to as ‘the other’ or the ‘third space’ where the reader can find or suggest meaning between the hidden and the said. What is less commonly acknowledged is that the threes can also be constructed to create a safe place in which to allow dangerous emotions or thoughts to be expressed.

Age Differences in Coping: Does Less Mean Worse?

1989 ◽  
Vol 28 (2) ◽  
pp. 127-140 ◽  
Author(s):  
Suzanne Meeks ◽  
Laura L. Carstensen ◽  
Brenda-Fay Tamsky ◽  
Thomas L. Wright ◽  
David Pellegrini
Keyword(s):  
Older Adults ◽  
Older People ◽  
Coping Strategies ◽  
Age Differences ◽  
Adaptive Strategies ◽  
The Other ◽  
The Third ◽  
Older Subjects ◽  
Quantitative Changes

Previous research suggests that elderly people utilize fewer coping strategies than younger people. Some researchers suggest that these quantitative changes reflect decreases in the use of maladaptive strategies; others contend that they reflect decreases in the use of adaptive strategies by older adults. The present article reports the findings of three studies of coping in older people, two addressing coping with health problems, and the other addressing coping with moving. In all three studies, the number of self-reported coping strategies decreases with age. Results do not support the idea that decreases in the number of strategies imply decrements in the quality of coping, however: in two studies, age was unrelated to the effectiveness of strategies, in the third, effectiveness ratings were higher for older subjects. The need for evaluation of specific outcomes of coping strategies is discussed, along with the need for task-specific measurement of coping. It is proposed that decreases in the number of coping strategies reflect improved coping efficiency, rather than a deterioration of adaptational skills.

scholarly journals Residual effect of a few herbicides on chlorophyll content and primary productivity of succeeding crops and associated weeds

2013 ◽  
Vol 35 (1) ◽  
pp. 133-143 ◽  
Author(s):  
A. N. Rao
Keyword(s):  
Zea Mays ◽  
Chlorophyll Content ◽  
Primary Productivity ◽  
Cajanus Cajan ◽  
Residual Effect ◽  
The Other ◽  
Pigment Concentration ◽  
Considerable Decrease ◽  
Previous Season ◽  
Residual Plots

The residual effect of a few herbicides viz: Atrataf (atrazine), 2,4-D and Aresin (monolinuron) sprayed in the previous season on the pigment concentration and primary productivity of the crops (viz: <i>Zea mays</i> and <i>Cajanus cajan</i>) grown in rotation, as well as their associated weeds has been studied. The results indicate that the residues of all the three herbicides were non toxic to <i>Zea mays</i> and toxic to <i>Cajanus cajan</i> as an increase in chlorophyll content and primary productivity occurred in the former, whereas the contrary is true for the latter. Weeds from residual plots have shown a considerable decrease in the chlorophyll content and primary productivity. The most susceptible weed to all the three herbicides was <i>Acalypha malabarica</i>, while <i>Echinochloa colonum</i> is susceptible to the residues of Atrazine but is tolerant to the residues of the other two herbicides. Recommendations based on the observations are presented in the paper.

scholarly journals Congruence in Music and Movement Enhances the Perception of Sports Routine Quality

2019 ◽  
Vol 19 ◽  
Author(s):  
Fung Chiat Loo ◽  
Fung Ying Loo ◽  
Yan Piaw Chua
Keyword(s):  
New Music ◽  
The Other ◽  
Original Music ◽  
Music Majors ◽  
Dance Music ◽  
The Third ◽  
Rhythmic Gymnastics ◽  
Video Stimulus ◽  
Sports Activities

Most studies of music and sports relate to the ergogenic effect of synchronization between music and movement in repetitive sports activities. As in dance, music is clearly important for sports routines that involve choreography. This study performs an experiment involving a rhythmic gymnastics routine to investigate whether increasing the congruence between music and movement enhances the quality of sports routines from a musical perspective. In preparing the video stimulus, the original music accompaniment was replaced with a new composition to increase the congruence between music and movement using six musical parameters that parallel dance, including tempo, rhythm, phrasing, accent, direction and dynamic. Fifty-two undergraduate music majors participated in the study and evaluated two videos of the same routine, one with the original music and the other with the new music. The participants completed a three-part questionnaire: the first part evaluates the perceived congruence between music and movement in terms of the six parameters, the second part evaluates acrobatic qualities, and the third part evaluates athletic qualities. The results show that the intended congruence was perceived as significantly improved in the routine with the new accompaniment, and both the acrobatic and sports qualities were also perceived as significantly improved.   Keywords: perceived congruence, sports routine, music and movement, choreomusical, music and sports

SOME RELATIONSHIPS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEM.) TO BLACK SPRUCE, PICEA MARIANA (MOENCH) VOSS

1957 ◽  
Vol 33 (4) ◽  
pp. 364-372 ◽  
Author(s):  
J. R. Blais
Keyword(s):  
Picea Mariana ◽  
Nutritional Quality ◽  
Black Spruce ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
The Other ◽  
Rate Of Development ◽  
The Third ◽  
Adequate Food

Spruce budworm larvae feeding on black spruce had a lower rate of development and a higher rate of mortality than those feeding on white spruce or balsam fir. This was attributable to the lateness in opening of the black spruce buds rather than to the inferior nutritional quality of the foliage. When staminate flowers were present in abundance on black spruce trees, development and survival of the insect was fairly similar to that on the other two species of trees; the flowers provided adequate food at the time of the third and fourth instars thus permitting the larvae to survive until the opening of the shoot buds. The late opening of the black spruce buds explains the relative immunity of this species to severe spruce budworm damage.

scholarly journals The Mutual Beneficial Effect between Medical Imaging and Nanomedicine

2013 ◽  
Vol 2013 ◽  
pp. 1-7
Author(s):  
Huiting Qiao ◽  
Libin Wang ◽  
Jintao Han ◽  
Yingmao Chen ◽  
Daifa Wang ◽  
...  
Keyword(s):  
Molecular Imaging ◽  
Medical Imaging ◽  
Beneficial Effect ◽  
Quantitative Description ◽  
The Body ◽  
The Other ◽  
Metabolic Study ◽  
Toxicological Research

The reports on medical imaging and nanomedicine are getting more and more prevalent. Many nanoparticles entering into the body act as contrast agents, or probes in medical imaging, which are parts of nanomedicines. The application extent and the quality of imaging have been improved by nanotechnique. On one hand, nanomedicines advance the sensitivity and specificity of molecular imaging. On the other hand, the biodistribution of nanomedicine can also be studiedin vivoby medical imaging, which is necessary in the toxicological research. The toxicity of nanomedicine is a concern which may slow down the application of nanomedical. The quantitative description of the kinetic process is significant. Based on metabolic study on radioactivity tracer, a scheme of pharmacokinetic research of nanomedicine is proposed. In this review, we will discuss the potential advantage of medical imaging in toxicology of nanomedicine, as well as the advancement of medical imaging prompted by nanomedicine.

scholarly journals Quantity and Quality of Organic Matter in Soil after Application of Various Organic Materials/Ilość I Jakość Materii Organicznej W Glebie Po Aplikacji Różnych Materiałów Organicznych

2014 ◽  
Vol 21 (3) ◽  
pp. 477-485 ◽  
Author(s):  
Krzysztof Gondek ◽  
Monika Mierzwa
Keyword(s):  
Humic Acid ◽  
Organic Materials ◽  
Residual Effect ◽  
Soil Fertilization ◽  
Alkaline Extract ◽  
The Third ◽  
Degree Of Condensation ◽  
Humic Acid Carbon ◽  
Carbon Concentrations

Abstract Organic carbon concentrations in soil, irrespective of the year of research increased significantly after application of organic materials for the soil fertilization in comparison with the soil from the NPK mineral treatment. The content of low molecular humus compounds extracted from soil using H2SO4 solution was small, regardless of the applied fertilization or year of research. However, after the third year of research a significant increase in this humus fraction content was noted in soil of all treatments where fertilization was applied. After the third year of research, carbon content in alkaline extract rose significantly in soil of all treatments where fertilization with organic materials was applied, in comparison with the soil from mineral NPK treatment. The content of humic acid carbon in soil was lower than fulvic acid carbon, which resulted in lower than one values of Cha : Cfa ratio. However, obtained results point to marked increase in both humus fractions in results of residual effect of applied fertilization. Residual effect of applied fertilization apparently increased the value of absorbance coefficient A4/6, which points to a decreased degree of condensation of humic acid molecule and greater aliphatisation.

scholarly journals Solar polarimetry in the K I D2 line : A novel possibility for a stratospheric balloon

2018 ◽  
Vol 610 ◽  
pp. A79 ◽  
Author(s):  
C. Quintero Noda ◽  
G. L. Villanueva ◽  
Y. Katsukawa ◽  
S. K. Solanki ◽  
D. Orozco Suárez ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Residual Effect ◽  
Ground Level ◽  
The Other ◽  
Line Of Sight ◽  
The Third ◽  
Stratospheric Balloon ◽  
Almost All ◽  
Solar Polarimetry ◽  
First Time

Of the two solar lines, K I D1 and D2, almost all attention so far has been devoted to the D1 line, as D2 is severely affected by an O2 atmospheric band. This, however, makes the latter appealing for balloon and space observations from above (most of) the Earth’s atmosphere. We estimate the residual effect of the O2 band on the K I D2 line at altitudes typical for stratospheric balloons. Our aim is to study the feasibility of observing the 770 nm window. Specifically, this paper serves as a preparation for the third flight of the Sunrise balloon-borne observatory. The results indicate that the absorption by O2 is still present, albeit much weaker, at the expected balloon altitude. We applied the obtained O2 transmittance to K I D2 synthetic polarimetric spectra and found that in the absence of line-of-sight motions, the residual O2 has a negligible effect on the K I D2 line. On the other hand, for Doppler-shifted K I D2 data, the residual O2 might alter the shape of the Stokes profiles. However, the residual O2 absorption is sufficiently weak at stratospheric levels that it can be divided out if appropriate measurements are made, something that is impossible at ground level. Therefore, for the first time with Sunrise III, we will be able to perform polarimetric observations of the K I D2 line and, consequently, we will have improved access to the thermodynamics and magnetic properties of the upper photosphere from observations of the K I lines.

scholarly journals Development and Evaluation of Inclined Plate Metering Mechanism for the Sowing of Maize (Zea mays L) Seed

2020 ◽  
pp. 118-128
Author(s):  
Inderpal Singh ◽  
Anand Gautam ◽  
Anoop Kumar Dixit ◽  
Gursahib Singh Manes ◽  
Arshdeep Singh
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Forward Speed ◽  
Inclined Plate ◽  
Cash Crop ◽  
Average Spacing ◽  
Seed Rate ◽  
The Third ◽  
Maize Seeds

Maize (Zea mays L) is the third most imperative food cash crop after wheat and rice in India. Inclined plate seed metering mechanism was developed and evaluated in the laboratory for singulation and uniform placement of maize seeds with three varieties (PMH-1, PIONEER-3396, PMH-10). Metering device was tested at three inclinations of 45°, 50° and 55° using three types of metering plates (P1, P2, P3) having 24 groove number cells. The average spacing between seeds at 3 km/h forward speed with metering plate P1, with angle of inclination 50° was 18.35 cm, 17.67 cm and 17.98 cm for PMH-1, PIONEER-3396 and PMH-10 seeds, respectively. The overall quality of feed index obtained with the parameters are 83.38%, 87.20% and 85.40% for PMH-1, PIONEER-3396 and PMH-10 seeds, respectively, which was higher than other parameters and seed rate of (6.70, 6.75 and 6.70) kg/acre for PMH-1, PIONEER-3396 and PMH-10 seeds, respectively.

scholarly journals PENELITIAN PERUBAHAN WARNA DAN ETILEN SELAMA PEMERAMAN DAUN TEMBAKAU KULTIVAR MADURA SERTA PENGARUHNYA TERHADAP MUTU TEMBAKAU RAJANGAN

2020 ◽  
Vol 7 (3) ◽  
pp. 93
Author(s):  
JOKO PURDIYANTO
Keyword(s):  
Carboxylic Acid ◽  
Nicotiana Tabacum ◽  
Colour Change ◽  
The Other ◽  
Tobacco Leaves ◽  
Ripening Process ◽  
The Third ◽  
Randomized Design ◽  
Completely Randomized Design

<p><strong>Colour alternation and et/tylene changes during ripening tobacco leaves cultivar Madura and its effect to the quality of slice Madura tobacco</strong></p><p>The colour change and elhylene production in the leaves of Madura tobacco (Nicotiana tabacum) during ripening was studied at "Labora¬ torium Biokimia Pusat Antar Universitas Pangan dan Gizi Universitas Gadjahmada Yogyakata" and "Laboratorium Inti dan Atom Jurusan I'isika, FMIPA Universitas Gadjahmada Yogyakata". The change of colour was measured with Chrommameter CR-200. while the production of ethylcne, ACC (1-aminocyclopropanc-l-carboxylic acid) and MACC (malonyl-ACC) were measured with Photoaccuslic Spectroscopy, from the sample of 100 kg tobacco leaves cv. Jepon grown from April to September 1995 in Plakpak, Pcgantenan, Pamekasan, East Java. The experiment was designed as a completely randomized design in three replicates. The leaves samples were taken randomly from the mature middle leaves Results showed that endogenous ethylcne production al the irst day al a level of 169 ppb. was able to initiate ripening. Conversion percentage of ACC to ethylcne for 8 days ripening increased from 7.7 up lo 61.4 %. F tests least signiicantly different (1%). showed that yellow intensity signiicantly increased on the second day. This indicated thai ripening process was stated on the second day. On the other hand green intensity significantly decreased at the ifth day, thus no chlorophyl degradation. Brightness was signiicantly observed on Ihe third day of ripening, meaning that ripening stated on the third day. Based on the three criteria, the best ripening period was from the third lo the ilth day. This implies that the farmers will have three day periods of ripening which can be arranged to overcome the shotage of man power for slicing the leaves.</p>

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