scholarly journals IMPACT OF ORGANIC MATTER ON THE GROWTH OF JATROPHA CURCAS AND MORINGA OLEIFERA SEEDLINGS BENEATH WATER DEFICIT

2021 ◽  
Vol 8 (4) ◽  
pp. 427-446
Author(s):  
Amal El-Gamal ◽  
Mohamed Hesham Khamis
2018 ◽  
Vol 12 (02) ◽  
pp. 254-252
Author(s):  
Priscilla Gomes de Freitas Santos ◽  
◽  
Alainy Carla de Souza Nascente ◽  
Ricardo Felício ◽  
Leonardo Mendes ◽  
...  

2018 ◽  
Vol 116 ◽  
pp. 15-23 ◽  
Author(s):  
Priscila Souza de Oliveira ◽  
Lidiane Silva Pereira ◽  
Delmira Costa Silva ◽  
José Olimpio de Souza Júnior ◽  
Bruno Galvêas Laviola ◽  
...  

2020 ◽  
Vol 36 (1) ◽  
pp. 46-53
Author(s):  
H. Sule

Laboratory experiment was conducted at the Department of Crop Protection Laboratory, Faculty of Agriculture, Bayero University, Kano, in order to assess the effect of oils obtained from the seeds of Jatropha curcas and Moringa oleifera on African Maize Stalk Borer (Busseola fusca Fuller). The effects of the plant seed oils on larvae mortality, pupae and adult emergence were tested on freshly cut leaves/stem of maize 3-4 cm long) and treated with the prepared plant oils at various concentrations (10, 20, and 30%) and control (0%). The experiment was laid out in a completely randomized design and replicated four times. The results showed that both plant seeds oils were lethal to the developmental stages of B. fusca, causing mortality (21%) to the larvae, and subsequently preventing and/or suppressing pupae (2.08) and adult emergence (1.95). Treatment at 30% concentration was found to be more lethal to all the developmental stages of the test insect. Based on the findings of this study, it is recommended that any of the plant seed oils at 30 % concentration could be used to manage B. fusca.


Author(s):  
J. I. Oluwatayo ◽  
C. I. Jidere ◽  
A. Nwankiti

Tomato (Solanum lycopersicum L.) is an important and widely grown vegetable crop all over the world. Although tomato is nutritionally and economically important, its production is constrained by biotic and abiotic constraints leading to poor marketable quantity and quality worldwide. Root-knot nematodes are one of the major pests affecting tomato production worldwide, especially, in the tropical and sub-tropical regions. Green house experiments were laid out in Complete Block Design (CBD) with a 3x7 factorial arrangement replicated three times carried out at the Department of Crop and Environmental Protection, University of Agriculture. The soil was sterilized before the experiment. Fresh leaves and seeds of Moringa oleifera, Ricinus communis  and Jatropha curcas were washed with tap water, 15 g  from each of leaves and seeds of the different botanicals was macerated separately in an electric blender at high speed for 4 minutes in 100 ml distilled water. The mixtures were passed through a Whatman filter paper number 1; the filtrates of the leaves/seeds were then collected. Three tomato varieties viz: Roma Vf, Rio Grande and UC82B were inoculated with approximately 5,000 freshly hatched second stage juvenile of Meloidogyne incognita, two weeks after transplanting.  Thirty percent aqueous extract each  of Castor, Moringa and Jatropha leaves and seeds was used, while double distilled water (0%) served as the control. Thirty ml of   each leaf and seed aqueous extract was applied, 48 hours after inoculation as soil drench. Application was done at 1 weeks intervals thereafter for a period of 16 weeks. Data collected include number of fruits per plant, root gall index, nematode reproductive factor, and final nematode population. The results showed that various Moringa oleifera, Ricinus communis  and Jatropha curcas leaves and seed extracts significantly (P<0.05) reduced root gall index, final population of M. incognita in the soil and nematode reproductive factor than the control. Application of the various treatments Moringa oleifera, Ricinus communis  and Jatropha curcas led to significant increase in mean number of fruits and mean fruit weight yield of all the three tomato varieties. Therefore, the application of leaf and seed aqueous extracts of Moringa, Jatropha and Castor will serve as good alternative for the management of root knot nematode Meloidogyne incognita.


2020 ◽  
Vol 16 (2) ◽  
pp. 64
Author(s):  
DJAJADI DJAJADI ◽  
BAMBANG HELIYANTO ◽  
NURUL HIDAYAH

<p>ABSTRAK</p><p>Lahan pertanian yang didominasi oleh partikel pasir di daerah lahankering iklim kering mempunyai kapasitas yang rendah dalam menyimpanair dan unsur hara, serta rentan terhadap erosi. Penambahan tanah liat,zeolit, dan bahan organik diharapkan dapat meningkatkan kadar unsur haratanah, kadar air tanah, dan pertumbuhan tanaman. Penelitian yangdilakukan dari bulan Mei sampai Desember 2008 ini bertujuan untukmengetahui pengaruh penambahan tanah liat, zeolit dan interaksinyadengan bahan organik terhadap stabilitas makroagregat, kadar unsur haraC, N, P, dan K, daya pegang air tanah berpasir, populasi mikroorganismetanah serta pertumbuhan jarak pagar. Media tanam yang diuji sebanyak 5jenis, yaitu (1) 100% tanah pasir, (2) 95% tanah pasir + 5% tanah liat, (3)95% tanah pasir + 5% zeolit, (4) 94,2% tanah pasir + 5% tanah liat + 0,8%bahan organik, dan (5) 94,2% tanah pasir + 5% zeolit + 0,8% bahanorganik. Untuk mengetahui kemampuan daya pegang air tanah, makaperlakuan jenis media tersebut dikombinasikan dengan perlakuanfrekuensi pemberian air, yaitu dengan interval 7 dan 21 hari sekali.Perlakuan disusun dalam rancangan acak kelompok faktorial denganempat kali ulangan. Hasil penelitian menunjukkan bahwa penambahan 5%tanah liat + 0,8% bahan organik pada tanah berpasir dapat meningkatkanproporsi makroagregat, kadar unsur hara C, N, P, dan K, serta kapasitasdaya pegang air tanah. Penambahan sebanyak 5% zeolit pada tanah pasirmeningkatkan populasi bakteri. Peningkatan populasi jamur lebih dipacudengan frekuensi pemberian air 7 hari sekali. Pertumbuhan tinggi tanamanjarak pagar juga lebih dipercepat oleh pemberian air dengan frekuensi 7hari sekali.</p><p>Kata kunci: Jatropha curcas, pasir, liat, zeolit, bahan organik, kesuburantanah, pengairan</p><p>ABSTRACT</p><p>The role of clay, zeolit, and organic matter in increasingsoil fertility of sandy soil as growth media for Jatrophacurcas</p><p>Agricultural sandy soils have low capability to retain water andnutrients. Addition of clay, zeolit and organic matter to these soils wasexpected to increase macro-aggregate stability, soil nutrients and waterholding capacity. The research had been conducted from May up toDecember 2008 to find out the effect of addition of clay, zeolit, and theirinteractions with organic matter in increasing sandy soil fertility as growthmedia for Jatropha curcas. The study had an objective to quantify theeffect of plant media and frequency of watering on soil macro-aggregatestability, soil nutrients, water holding capacity, soil microorganismspopulation, and growth of J. curcas. Plant growth media tested in thisstudy consisted of 5 types, i.e. (1) 100% sand soil, (2) 95% sand soil + 5%clay soil, (3) 95% sand soil + 5% zeolit, (4) 94.2% sand soil + 5% clay +0.8% organic matter, and (5) 94.2% sand soil + 5% zeolit + 0.8% organicmatter. Watering of plant was divided into two time intervals, i.e. each of 7days and each of 21 days. Results showed that plant media which was amixture of 94.2% sand soil + 5% clay + 0.8% organic matter increasedproportion of maco-aggregate, plant nutrients (C, N, P, K) and soil waterholding capacity. Plant media consisted of mixture of 95% sand soil + 5%zeolit was suitable for development of bacteria population. Acceleratingof growth of J curcas was induced by watering with interval of 7 days.</p><p>Key words: Jatropha curcas, sand, clay, zeolit, organic matter, watering,soil fertility</p>


2011 ◽  
Vol 22 (2) ◽  
pp. 623-630 ◽  
Author(s):  
E. A. Silva ◽  
A. S. Gouveia-Neto ◽  
R. A. Oliveira ◽  
D. S. Moura ◽  
P. C. Cunha ◽  
...  

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