Zulkefly Sulaiman

Dr. Zulkefly Sulaiman

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 March 2021 in International Journal of Agronomy
Verified
Journal Article
Open access
PDF file
IAI. Nur Arina
I. Nur Arina
MYMartini Mohammad Yusoff
Martini Mohammad Yusoff
SSS. Surdiana
S. Surdiana
MRMohd Fauzi Ramlan
Mohd Fauzi Ramlan
ZSZulkefly Sulaiman
Zulkefly Sulaiman
Global demand for food has always been on the increase due to the increase of the population in this world. Intercropping is one of the alternatives of agronomic practices that is widely practiced in ensuring food security and enhancing yield stability. Strip, mixed, and relay intercropping can be practiced to increase crop production. In addition to achieving a successful intercropping system, factors such as suitable crops, time of sowing, maturity of the crop, and plant density need to be considered before and during planting. Besides, practiced intercropping becomes a useful cropping system to increase efficient resource utilization, enhance biodiversity, promote soil health, enhance soil fertility, erosion control, yield advantage, weed, pest, and disease control, insurance against crop failure, ecosystem and modification of microclimate, market instability, and increase farmers income. Crop productivity in any types of cropping system implemented relies primarily on the interception of photosynthetically active radiation (PAR) of crop canopy and conversion of intercepted radiation into biomass or known as radiation use efficiency (RUE). Both PAR and RUE are important measurements that have significant roles in crop growth and development in which the accessibility of these radiation dynamics is connected with the leaf area index and crop canopy characteristics in maximizing yield as well as total productivity of the crop component in intercropping systems.

14 April 2022 in Agronomy
Verified
Journal Article
Open access
PDF file
AGAuwalu Garba Gashua
Auwalu Garba Gashua
ZSZulkefly Sulaiman
Zulkefly Sulaiman
MYMartini Mohammad Yusoff
Martini Mohammad Yusoff
MSMohd Yusoff Abd Samad
Mohd Yusoff Abd Samad
MRMohd Fauzi Ramlan
Mohd Fauzi Ramlan
MSMONSURU SALISU
MONSURU SALISU
Agricultural waste is a type of solid waste that needs to be managed properly. Organic waste can be recycled to produce bokashi fertilizer, which can be used to improve soil health, increase crop production, and sanitize the environment. However, it may contain heavy metals that could be toxic to plants and can pollute the environment if not properly decomposed. This study was designed to evaluate the fertilizer quality of six different bokashi fertilizer ratios (bfrs) over seven- and thirty-day maturation periods. The raw materials used include horse bedding waste (HBW), cow dung (CD), and paddy husk charcoal (PHC) in different ratios, treated with an effective microorganisms (EM4) solution. All the nutrients studied (N, P, K, Mg, and Ca) were significantly affected by the bokashi fertilizer ratios (bfrs). The best bokashi fertilizer ratio was bokashi fertilizer ratio-6 (bfr6), but it was statistically similar to bokashi fertilizer ratio-5 (bfr5). Its N, P, K, Mg, and Ca contents were higher than the control (bfr1) by 133.9%, 225.5%, 196.4%, 105.0%, and 84.7%, respectively. Similarly, all these nutrients were significantly affected by time. N, P, K, and Mg increased by 21.2, 33.0%, 16.4%, and 28.8%, respectively, after 30 days of maturation, with a decrease in Ca only 2.4%, which was not significant A germination index (GI) of 90.1% was obtained using cabbage seeds. The heavy metals result and germination bioassay confirmed the safety and maturity of the bokashi fertilizer. In conclusion, the results revealed that good-quality bokashi fertilizer can be produced within 30 days. Bfrr5 and bfr6 are equally good candidates for producing good-quality bokashi fertilizer for effective crop growth.

30 June 2017 in Euphytica
Verified
Journal Article
Closed access
PDF file
IAIbrahim Wasiu Arolu
Ibrahim Wasiu Arolu
MRM.Y. Rafii
M.Y. Rafii
MMMarhalil Marjuni
Marhalil Marjuni
MHMohamed M. Hanafi
Mohamed M. Hanafi
ZSZulkefly Sulaiman
Zulkefly Sulaiman
RNRajanaidu Nookiah
Rajanaidu Nookiah

2 September 2020 in Climate and Development
Verified
Journal Article
Closed access
INIsah Shehu Nabara
Isah Shehu Nabara
NMNorsida Man
Norsida Man
NKNitty Hirawaty Kamarulzaman
Nitty Hirawaty Kamarulzaman
ZSZulkefly Sulaiman
Zulkefly Sulaiman
Persistent climate impacts in Malaysia pose severe difficulties for smallholder farmers, whose livelihoodsare primarily dependent on resources from agriculture. Adaptation policies are essential to adapt to the Motivation Theory (PMT) was applied to fill this gap as an underpinning for identifying the major contributing factor of farmers' adaptation behaviour to climate effects. A study of 382 smallholder farmers in the Malaysian peninsula was conducted using a multi-stage stratified random sampling technique, revealing that specific farmers were postponing protection actions in the face of serious continuous impact. A low tendency to adopt policies suitable for decreasing climate impacts has been noted. Partial least square (PLS) path design and Bayesian system analysis were used to reveal the responsiveness, perceived severity, cost of reaction, perceived susceptibility, self-efficacy, earnings, and social norms considerably affected the adaptation behaviour. The feeling of controlling climate effects on the farm can increase the adoption of protective measures. Hence, collaborative programmes need to be developed to support farmers, and foster feelings of control over climate change and its impacts.

1 May 2022 in Journal of Rubber Research
Verified
Journal Article
Closed access
PDF file
AGAuwalu Garba Gashua
Auwalu Garba Gashua
ZSZulkefly Sulaiman
Zulkefly Sulaiman
MYMartini Mohammad Yusoff
Martini Mohammad Yusoff
MSMohd Yusoff Abd Samad
Mohd Yusoff Abd Samad
MRMohd Fauzi Ramlan
Mohd Fauzi Ramlan
MMMohd Shafar Jefri Mokhatar
Mohd Shafar Jefri Mokhatar

1 February 2023 in Indian Journal Of Agricultural Research
Verified
Journal Article
Open access
PDF file
RRRidzwan Che Rus
Ridzwan Che Rus
MSMONSURU SALISU
MONSURU SALISU
NUNorhanizan Usaizan
Norhanizan Usaizan
INIrdayanti Mat Nashir
Irdayanti Mat Nashir
OYOLADOSU YUSUFF
OLADOSU YUSUFF
AHAdemola Hammed
Ademola Hammed
Background: Coconut coir dust (CD) is commonly used for growing selected fruit and vegetables. It is a soilless medium with excellent drainage and high-water holding capacity; free from infestations of weeds and pathogens. However, plant growth is adversely affected due to its high salinity, potassium and low pH. Methods: A greenhouse experiment was conducted to investigate the influence of different soilless media on rock melon’s growth, nutrient and fruit quality. Five soilless media were prepared including CD as control. A customised portable IoT system was deployed to monitor and collect relevant real-time agronomic data. Result: Plant height, yield, leaf area, total fresh fruit weight and soluble solids content (sweetness) of rock melon were significantly affected by the growing medium. Among the five media used, the growth and quality characteristics were highest in M2 followed by M3. It was found that a combination of burnt rice husk (BRH) and perlite with CD remarkably improved the growth of fruit quality of rock melon.