This situation had reduced teaching of practical subjects like
Agriculture changing it into a theoretical exercise. UNESCO (1999)
observed that lack of financial resources hindered the expansion of
facilities which led to specific problems in vocational subjects like
Agricultural Science. In some cases the courses apparently are largely
limited to theoretical classroom presentation because of lack of
farmland. Those that have farmland also mostly experience shortage of
simple farm tools, irrigation equipment and consumables such as
fertilizers.
All these require a lot of funds, without which it
is not possible to build sound attitudes to farming since the practical
aspect cannot be provided. according to Itodo (2004), most schools faced
a lot of challenges when it comes to practical work in Agricultural
Science. Most of these challenges are in connection with lack of funds.
Wootoyitidde (2010) posits that Agriculture as a practical subject
requires facilities like land, equipment and a well-equipped laboratory.
These facilities demand a lot of funds which many schools are not able
to afford, hence making it difficult for such schools to undertake the
needed practical work in Agriculture. It is essential for students to
learn and practice skills in a good quality school farm. However, in
most cases this is not possible because the schools do not have good
quality farms due to inadequate funds (Erongu, 1995) A recent study
conducted by Darko, et al. (2015) revealed among others that frequent
use of lecture method in teaching, inadequate teaching and learning
materials and their availability, and difficulty in planning field trips
were the challenges to effective teaching and learning of Agricultural
Science in the Senior High Schools. According to Orodho (2014), some
students are of the perception that Agricultural Science has no future
prospects for them. Others also believe that Agricultural Science is not
as important as Mathematics and English Language which they view as
core subjects needed to get employment or admission into tertiary
institution.
Lack of specialized man power: One of the major
hindrance pointed out by the united Nation university publication
(2005), stated that in developing countries around the world the major
hindrance they faced in practical agriculture is lack of specialized man
power, this statement goes along way in concurring with Ayodeji (2001)
statement that for the practice subject the major constraints remains
lack of specialized man power to handle them in most schools he also
pointed out that most agricultural science teachers in secondary schools
are not real graduate of agricultural education, and so would not know
the boundaries and integrity of their job, constituting to a hindrance
to a sustainable practical agriculture Cooney (1990) opined that student
do not understand agricultural science if it’s taught by an ineffective
teacher, Izumi and Evess (2002) buttressed this by saying that
teacher’s quality is the most among other critical factor like quality
curriculum, funding, small class size and learning situation.
Inadequate
land and equipment is one of the hindrance facing practical
agriculture. Samuel (2004) in his book practical agriculture maintains
the stand that most school lack farm and even the few that does
especially in the urban areas lack the necessary equipment for the
practice.
Shimave (2000) also noted that most secondary schools do
not have school farm and where they exist at all they fail to meet the
standard and are thus ill-prepared to measure what school farm are set
to measure. The WAEC guideline (2007) demands that every school
secondary school who intend to offer agriculture as part of the exam
subject must have a school farm or demonstration field. This shows that
the absence of school farm has greatly contributed to gross impediment
to a sustainable practical agriculture.
Olaniyan and Ojo (2008)
reported that the increase in student enrolment in Nigeria secondary
school these days have created large classes that make it difficult for a
single teacher to manage the practical aspects. Amuha (2009) pointed
out that the common problem of teaching agricultural practical in
developing country like Nigeria include.
(i) Low professional and efficiency level of teacher.
(ii) Poor attitude of teachers and learners
(iii) Political lapses.