Shading effects of alley cropped Leucaena leucocephala on weed biomass and maize yield at Mtwapa, Coast Province, Kenya

1991 ◽  
Vol 13 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Bashir Jama ◽  
Amare Getahun ◽  
D. N. Ngugi
Keyword(s):  
Leucaena Leucocephala ◽  
Maize Yield ◽  
Weed Biomass ◽  
Shading Effects

Effects of Soil Tillage and Post-Emergence Weed Control on Weed Biomass and Maize Yield

2003 ◽  
Vol 31 (1-2) ◽  
pp. 177-184
Author(s):  
Mira Knežević ◽  
Marija Đurkić ◽  
Ivan Knežević ◽  
Oleg Antonić ◽  
Sven Jelaska
Keyword(s):  
Weed Control ◽  
Maize Yield ◽  
Soil Tillage ◽  
Weed Biomass

scholarly journals Effectiveness of cowpea (Vigna unguiculata L.) living mulch on weed suppression and yield of maize (Zea mays L.)

2021 ◽  
Vol 6 (1) ◽  
pp. 489-497
Author(s):  
Mustapha Mas-Ud ◽  
Fuseini Dokurugu ◽  
James Seutra Kaba
Keyword(s):  
Block Design ◽  
Canopy Cover ◽  
Maize Yield ◽  
Weed Suppression ◽  
Northern Ghana ◽  
Growth Stages ◽  
Living Mulch ◽  
Weed Biomass ◽  
Maize Varieties ◽  
Cowpea Varieties

Abstract Weed control plays a vital role in achieving higher maize yield. We tested the hypothesis that interseeding cowpea as living mulch with maize will reduce biomass and diversity of weeds, and improve soil physical properties and maize yield. In 2017/2018 cropping seasons, a 2 × 4 factorial experiment was laid in a randomized complete block design with three replications at the Savelugu Municipality of Northern Ghana. The factorial treatment consisted of three cowpea varieties interseeded with two maize genotypes and a control (maize with no living mulch). Our result showed that, in both seasons, weed biomass and diversity, soil temperature, and grain yield were significantly (p < 0.05) higher in control plots than in cowpea living mulch plots at all growth stages of both maize varieties. However, maize growth was not affected by weeds at tasseling. We established that cowpea varieties as living mulch in maize cropping have similar effect on soil moisture and temperature but have varying degrees of suppressing weeds and improving maize yield. The cowpea living mulch had weed biomass of 0.5 t ha−1 compared to 2.6 t ha−1 in the control. In addition, living mulch plots had maize grain of 2 t ha−1 and stover yield of 3 t ha−1 compared to 0.98 and 2 t ha−1 respectively in the control. In conclusion, choosing the appropriate time for intercropping living mulches and selection of plant species (growth and canopy cover) for living mulch are essential in suppressing growth of weeds.

Integrated Soil Fertility Management Options for Maize Production and Sustainability in the Western Highlands of Cameroon

2021 ◽  
Vol 14 (1) ◽  
pp. 19-32
Author(s):  
Eveline Ngoran Banye ◽  
Victor François Nguetsop ◽  
Fritz Tabi Oben
Keyword(s):  
Leucaena Leucocephala ◽  
Chemical Properties ◽  
Maize Yield ◽  
Residual Effects ◽  
Leaf Biomass ◽  
Calliandra Calothyrsus ◽  
Nutrient Depletion ◽  
Acacia Angustissima ◽  
Cassia Spectabilis ◽  
Npk Fertilizer

Background: Continuous cultivation without fertilizer application and soil erosion are responsible for plant nutrient depletion and yield decline of major food crops in Sub-Saharan Africa.Methods: Nutrient status of Calliandra calothyrsus, Leucaena leucocephala, Acacia angustissima and Cassia spectabilis were characterized. Field experiments were conducted over two years in the Western Highlands of Cameroon to evaluate the effects of the application of leaf biomass of agroforestry tree species and mineral fertilizers on maize yield performance. The residual effects on soil physicochemical properties were also investigated for umbric Cambisols of Babungo and ustic Oxisols of Bansoa. Ten treatments encompassing; sole leaf biomass of Calliandra calothyrsus, Leucaena leucocephala, Acacia angustissima and Cassia spectabilis, leaf biomasses combined with NPK fertilizer, sole NPK fertilizer and absolute control were laid in a randomized complete block design and replicated three times. Data were subjected to analysis of variance and the Duncan Test (p < 0.05) used for mean separation.Results: All the species characterized had nitrogen, polyphenol and lignin contents greater than 2.5 %, 5 % and 15 % respectively. Significant differences (p < 0.05) were observed among treatments on maize growth, productivity parameters and soil chemical properties for both soil types. The highest maize grain yields were recorded in plots amended with 1 t/ha of biomass of Calliandra calothyrsus or Leucaena leucocephala as well as1.5 t/ha of biomass of Acacia angustissima and Cassia spectabilis plus mineral fertilizer (50 N+ 37.5 P2O5 + 45 K2O) on both soils compared to other treatments.on umbric Cambisols and ustic Oxisols respectively. The residual effects of treatments on soil chemical properties showed severe nutrient depletion in control plots and those amended with sole inorganic fertilizer.Conclusions: Combined application of agroforestry tree biomass and inorganic fertilizers remains an appropriate technology to enhance maize yield and sustain production of resource-limited farmers of acid tropical soils..

Wheat and maize yield variations in the Brod-Posavina area

2005 ◽  
Vol 33 (1) ◽  
pp. 229-233 ◽  
Author(s):  
Marko Josipovic ◽  
Vlado Kovacevic ◽  
D. Petosic ◽  
Jasna Sostaric
Keyword(s):  
Maize Yield

Forage palatability of Broussonetia papyrifera an invasive species in Ghana: Relative preference and palatability by sheep and goats

2018 ◽  
Vol 2 (2) ◽  
pp. 63-70 ◽  
Author(s):  
R. Obour
Keyword(s):  
Invasive Species ◽  
Leucaena Leucocephala ◽  
Condensed Tannin ◽  
Block Design ◽  
Wet Season ◽  
Broussonetia Papyrifera ◽  
Sheep And Goats ◽  
Relative Preference ◽  
Exotic Tree ◽  
High Level

Broussonetia papyrifera is an exotic tree widely grown for paper production. Due to its prolific regeneration it has invaded forestcanopy gaps and degraded farmlands and has now become an invasive species in Ghana. In enhancing its value for use the plantwas evaluated as potential forage for grazing animals vis-à-vis other two existing forage plants: Ficus exasperata and Leucaenaleucocephala.The study assessed the palatability and preference of Broussonetia papyrifera using sheep and goats for the wet anddry seasons.The species were assessed in indoor pen feeding trials using eight-unit (3×3 m) pens with the cafeteria method.The amount of forage offered was 100g (fresh material) in all instances for each species and for ten minutes. Adesign basedon 3×2×2 factorial in Randomized Complete Block Design (RCBD) was used to test the differences in palatability betweenthe three forage species.Results revealed that palatability was higher (P<0.05) in Leucaena leucocephala compared with Ficusexasperata and Broussonetia papyrifera for sheep and goats across seasons. The trend shown might be the result of the effectsof familiarity with the Leucaena leucocephala since animals tend to select plants that are familiar than newly introduced andunfamiliar plants. The study also revealed high level of condensed tannin (CT) in Broussonetia papyrifera which might haveinterfered with forage intake by the animals.There were no significant differences in palatability of Broussonetia papyrifera forgoat in both dry and wet season interactions and Ficus exasperata for goat in both dry and wet season interactions (P>0.05).Thestudy concluded that Broussonetia papyrifera could be a potential feed for both sheep and goats across seasons.The researchrecommended that livestock farmers should incorporate Broussonetia papyrifera feed into their programmes for both sheep andgoats and should be introduced to animals from infancy so that it may become a familiar feed for them.

Uji Aktivitas Antihiperglikemik Ekstrak Daun Petai Cina (Leucaena leucocephala (Lam.) de Wit) pada Mencit Induksi Aloksan

2019 ◽  
Vol 16 (1) ◽  
pp. 107
Author(s):  
Jena Hayu Widyasti ◽  
Fitri Kurniasari
Keyword(s):  
Leucaena Leucocephala ◽  
Diabetes Melitus

Diabetes melitus merupakan suatu penyakit dengan adanya gangguan sekresi insulin baik karena penurunan sensitifitas maupun kerusakan pada sel beta. Tujuan penelitian ini adalah membuktikan ekstrak daun petai cina (Leucaena leucocephala (Lam.) de Wit) memiliki aktivitas menurunkan kadar gula darah mencit hiperglikemik pada dosis yang efektif. Penelitian antihiperglikemik ini menggunakan mencit putih sebanyak 30 ekor. Pengujian aktivitas antihiperglikemik dilakukan pada 6 kelompok perlakuan yaitu kelompok I (kontrol normal), kelompok II (kontrol negatif, induksi aloksan 200 mg/kg BB dan akuades), kelompok III (induksi aloksan dan glibenklamida 10 mg/kg BB), kelompok IV (induksi aloksan dan ekstrak daun petai cina 200 mg/kg BB), kelompok V (induksi aloksan dan ekstrak daun petai cina 400 mg/kg BB), kelompok VI (induksi aloksan dan ekstrak daun petai cina 300 mg/kg BB). Semua kelompok perlakuan diberikan perlakuan tersebut selama 14 hari dan dilakukan pengukuran kadar gula darah pada hari ke-0, 3, 10, dan 17. Aktivitas antihiperglikemik ekstrak daun petai cina ditunjukkan dengan cara menghitung daya hipoglikemik masing-masing perlakuan. Hasil penelitian menunjukkan bahwa ekstrak etanol daun petai cina mempunyai aktivitas antihiperglikemik pada mencit yang diinduksi aloksan. Pada dosis uji ekstrak etanol daun petai cina 600 mg/kg BB mempunyai aktivitas antihiperglikemik yang efektif dibanding dengan dosis 400 mg/kg BB dan 200 mg/kg BB yang sebanding dengan kelompok kontrol positif.

Effect of Biochar on Maize Yield and Yield Components in Rainfed Conditions

2018 ◽  
Author(s):  
Zafar Ullah ◽  
Muhammad Shahbaz Akmal ◽  
Muzaffar Ahmed ◽  
Mohammed Ali ◽  
Aurangzaib Zaib Khan ◽  
...  
Keyword(s):  
Yield Components ◽  
Maize Yield ◽  
Yield And Yield Components ◽  
Rainfed Conditions
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