Amungwa Ivan - Academia.edu (original) (raw)
Papers by Amungwa Ivan
Agrochemicals are contemporary, omnipresent tool used in vegetable cultivation. Farmers' knowledg... more Agrochemicals are contemporary, omnipresent tool used in vegetable cultivation. Farmers' knowledge and awareness of the proper usage of agrochemicals are critical for mitigating the negative effects on human health. This cross-sectional study was aimed at assessing the usage knowledge, risk awareness of toxicological and chemical classes, proper handling and use practices for agrochemicals homologated for use in vegetable farming, and the occurrence of health-related symptoms as a result of exposure among these farmers. The study included 93 vegetable growers from agricultural hotspot towns in Fako, southwest Cameroon. The field study, ran from November 2021 to December 2023, using a questionnaire to collect information on farmers demographic, and their knowledge of pesticide classes, and the related risk of associated with the handling of agrochemicals. Results show that all vegetable farmers, particularly those engaged in agribusiness, employ pesticide inputs to maximize production. Six pesticides, two fertilizer types, and one unknown substance were identified. While 23 active compounds were found, the most utilized were abamectin, emamectin (10.46%), dimethoate (9.30%,) and ethoprophos (8.13%). Two active chemicals, dimethoate and methalaxyl, are illegal yet remain in circulation. Toxicological classes I and II, with the greatest harmful effect on human health, were the most commonly utilized (64.27%). Thirty-nine percent of farmers never use personal protection equipment when working with agrochemicals, demonstrating a significant gap in knowledge and awareness of agrochemicals and their various applications and handling procedures in the field.
International journal of scientific and engineering research, Jul 25, 2017
<jats:p>Water plays an instrumental role in the development of any community or society, un... more <jats:p>Water plays an instrumental role in the development of any community or society, unfortunately achieving household water security in many regions of the world, especially in Sub-saharan Africa and particularly Cameroon, is of global concern. This study thoroughly examines factors affecting water security within the Mutengene Community Water System and proposes sustainable alternatives to ensuring water security amongst imminent changes. Data was obtained through the use of interviews and semi-structured questionnaires on households, field and Laboratory analyses were carried out on collected water samples.</jats:p>
Empty fruit bunches (EFB) and palm oil mill Effluents (POME), are currently been poorly utilized ... more Empty fruit bunches (EFB) and palm oil mill Effluents (POME), are currently been poorly utilized and dumped with no regards for the environment. Cameroon has a vast potential in biomass production, resultant from its many agro-industries, and presently, very little to no valorization strategy is in place for the possible reduction of industrial wastes, thereby leading to environmental pollution. The aim of this research was to characterize EFB and POME for valorization as manure compose. The EFB were chopped with a machete into tiny pieces while the POME was cooled and bottled in amber-colored bottles prior to physicochemical analyses which were carried out at HYDRAC, IRAD and CBC-HS, respectively. The EFB contained 0.35%; 0.12%; 0.5%; 0.7% of Nitrogen, potassium, Magnesium and Calcium, respectively. For the POME, temperature, pH, TS, TVS, TSS, BOD and COD were of 27.9°c, 4.87, 22.100mg/l, 1.400mg/l, 9.022mg/l, 1.260mg/l and 7,960mg/l, respectively. Based on the results, the physico...
International Journal of Scientific and Engineering Research, Jul 25, 2017
<jats:p>Water plays an instrumental role in the development of any community or society, un... more <jats:p>Water plays an instrumental role in the development of any community or society, unfortunately achieving household water security in many regions of the world, especially in Sub-saharan Africa and particularly Cameroon, is of global concern. This study thoroughly examines factors affecting water security within the Mutengene Community Water System and proposes sustainable alternatives to ensuring water security amongst imminent changes. Data was obtained through the use of interviews and semi-structured questionnaires on households, field and Laboratory analyses were carried out on collected water samples.</jats:p>
Feed cost represents 60-70% of meat production costs which is prohibitive and cannot be affordabl... more Feed cost represents 60-70% of meat production costs which is prohibitive and cannot be affordable by resource-poor farmers [1]. According to [2], the cost of feeding is a major factor affecting the development of fish farming. Based on the report of [3], the high cost of feeding is associated with the inclusion of the conventional protein sources like the fishmeal and soybeans meal which are very expensive. As a result, the focus of livestock and fish nutritionists has been to valorise alternative sustainable protein sources such as the maggot meal which can be produced easily using readily available by-products.
Agrochemicals are contemporary, omnipresent tool used in vegetable cultivation. Farmers' knowledg... more Agrochemicals are contemporary, omnipresent tool used in vegetable cultivation. Farmers' knowledge and awareness of the proper usage of agrochemicals are critical for mitigating the negative effects on human health. This cross-sectional study was aimed at assessing the usage knowledge, risk awareness of toxicological and chemical classes, proper handling and use practices for agrochemicals homologated for use in vegetable farming, and the occurrence of health-related symptoms as a result of exposure among these farmers. The study included 93 vegetable growers from agricultural hotspot towns in Fako, southwest Cameroon. The field study, ran from November 2021 to December 2023, using a questionnaire to collect information on farmers demographic, and their knowledge of pesticide classes, and the related risk of associated with the handling of agrochemicals. Results show that all vegetable farmers, particularly those engaged in agribusiness, employ pesticide inputs to maximize production. Six pesticides, two fertilizer types, and one unknown substance were identified. While 23 active compounds were found, the most utilized were abamectin, emamectin (10.46%), dimethoate (9.30%,) and ethoprophos (8.13%). Two active chemicals, dimethoate and methalaxyl, are illegal yet remain in circulation. Toxicological classes I and II, with the greatest harmful effect on human health, were the most commonly utilized (64.27%). Thirty-nine percent of farmers never use personal protection equipment when working with agrochemicals, demonstrating a significant gap in knowledge and awareness of agrochemicals and their various applications and handling procedures in the field.
International journal of scientific and engineering research, Jul 25, 2017
<jats:p>Water plays an instrumental role in the development of any community or society, un... more <jats:p>Water plays an instrumental role in the development of any community or society, unfortunately achieving household water security in many regions of the world, especially in Sub-saharan Africa and particularly Cameroon, is of global concern. This study thoroughly examines factors affecting water security within the Mutengene Community Water System and proposes sustainable alternatives to ensuring water security amongst imminent changes. Data was obtained through the use of interviews and semi-structured questionnaires on households, field and Laboratory analyses were carried out on collected water samples.</jats:p>
Empty fruit bunches (EFB) and palm oil mill Effluents (POME), are currently been poorly utilized ... more Empty fruit bunches (EFB) and palm oil mill Effluents (POME), are currently been poorly utilized and dumped with no regards for the environment. Cameroon has a vast potential in biomass production, resultant from its many agro-industries, and presently, very little to no valorization strategy is in place for the possible reduction of industrial wastes, thereby leading to environmental pollution. The aim of this research was to characterize EFB and POME for valorization as manure compose. The EFB were chopped with a machete into tiny pieces while the POME was cooled and bottled in amber-colored bottles prior to physicochemical analyses which were carried out at HYDRAC, IRAD and CBC-HS, respectively. The EFB contained 0.35%; 0.12%; 0.5%; 0.7% of Nitrogen, potassium, Magnesium and Calcium, respectively. For the POME, temperature, pH, TS, TVS, TSS, BOD and COD were of 27.9°c, 4.87, 22.100mg/l, 1.400mg/l, 9.022mg/l, 1.260mg/l and 7,960mg/l, respectively. Based on the results, the physico...
International Journal of Scientific and Engineering Research, Jul 25, 2017
<jats:p>Water plays an instrumental role in the development of any community or society, un... more <jats:p>Water plays an instrumental role in the development of any community or society, unfortunately achieving household water security in many regions of the world, especially in Sub-saharan Africa and particularly Cameroon, is of global concern. This study thoroughly examines factors affecting water security within the Mutengene Community Water System and proposes sustainable alternatives to ensuring water security amongst imminent changes. Data was obtained through the use of interviews and semi-structured questionnaires on households, field and Laboratory analyses were carried out on collected water samples.</jats:p>
Feed cost represents 60-70% of meat production costs which is prohibitive and cannot be affordabl... more Feed cost represents 60-70% of meat production costs which is prohibitive and cannot be affordable by resource-poor farmers [1]. According to [2], the cost of feeding is a major factor affecting the development of fish farming. Based on the report of [3], the high cost of feeding is associated with the inclusion of the conventional protein sources like the fishmeal and soybeans meal which are very expensive. As a result, the focus of livestock and fish nutritionists has been to valorise alternative sustainable protein sources such as the maggot meal which can be produced easily using readily available by-products.