Authors :
Cherry S. Estacion; Rowena P. Varela; Elizabeth P. Parac; Reuben James Rollon
Volume/Issue :
Volume 7 - 2022, Issue 12 - December
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3CH7sJv
DOI :
https://doi.org/10.5281/zenodo.7525626
Abstract :
The study Key Insect Pests and Weeds in
Irrigated Rice fields at Varying Fertilization Regimes
was conducted during July to December 2020 cropping
season. It aimed to describe the occurrence of pests and
weeds along with the soil characteristics and fertilizer
regimes in different rice fields in RTRomualdez, Agusan
del Norte. Relative to the objectives, findings were
obtained. Pests and weeds are rising at the sampling sites
which are contributory factors to the poor production of
rice. Pests and weeds are significantly linked to fertilizer
applications such as potassium (K) and nitrogen (N). The
soil characteristics such as soil PH and soil phosphorus
(P) of the farm sites in RTRomualdez Agusan del Norte
are in the normal range. Organic matter (OM) content is
low. However, soil potassium (K) is higher which is
above the normal range when farmers applied more
potassium fertilizers it may cause fixation rather than
availability which aggravated further the occurrence of
insect pests. Rice crops have a very low nitrogen (N)
concentration and marginal potassium (K) levels.
Regarding pest occurrence, Rottboellia cochinchinensis
(Aguingay) grows more with increasing N concentration.
The occurrence of pests is positively correlated to
organic matter and phosphorus (P). Further, Nitrogen
(N) is positively correlated to the occurrence of weeds.
These implied that soil characteristics are significant
factors in the occurrence of pests and weeds. The
optimal use of potassium (K) and nitrogen (N) can be
studied in the occurrence of pests and weeds. The growth
of plant hopper and green leaf hopper can be further
investigated at varying concentrations of organic matter
and phosphorous content. A deeper study on the
influence of Nitrogen uptake on the growth of Rottboellia
cochinchinensis (Aguingay) is also suggested. Wide
sampling sites may also be considered to understand the
variability of pests and weeds.
Keywords :
Fertilization, Nitrogen, Pests, Potassium, Weeds
The study Key Insect Pests and Weeds in
Irrigated Rice fields at Varying Fertilization Regimes
was conducted during July to December 2020 cropping
season. It aimed to describe the occurrence of pests and
weeds along with the soil characteristics and fertilizer
regimes in different rice fields in RTRomualdez, Agusan
del Norte. Relative to the objectives, findings were
obtained. Pests and weeds are rising at the sampling sites
which are contributory factors to the poor production of
rice. Pests and weeds are significantly linked to fertilizer
applications such as potassium (K) and nitrogen (N). The
soil characteristics such as soil PH and soil phosphorus
(P) of the farm sites in RTRomualdez Agusan del Norte
are in the normal range. Organic matter (OM) content is
low. However, soil potassium (K) is higher which is
above the normal range when farmers applied more
potassium fertilizers it may cause fixation rather than
availability which aggravated further the occurrence of
insect pests. Rice crops have a very low nitrogen (N)
concentration and marginal potassium (K) levels.
Regarding pest occurrence, Rottboellia cochinchinensis
(Aguingay) grows more with increasing N concentration.
The occurrence of pests is positively correlated to
organic matter and phosphorus (P). Further, Nitrogen
(N) is positively correlated to the occurrence of weeds.
These implied that soil characteristics are significant
factors in the occurrence of pests and weeds. The
optimal use of potassium (K) and nitrogen (N) can be
studied in the occurrence of pests and weeds. The growth
of plant hopper and green leaf hopper can be further
investigated at varying concentrations of organic matter
and phosphorous content. A deeper study on the
influence of Nitrogen uptake on the growth of Rottboellia
cochinchinensis (Aguingay) is also suggested. Wide
sampling sites may also be considered to understand the
variability of pests and weeds.
Keywords :
Fertilization, Nitrogen, Pests, Potassium, Weeds
