What Are Fertilisers? | Agriculture | Biology | FuseSchool
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12 سال پیش
-
What Are Fertilisers? | Agriculture
What Are Fertilisers? | Agriculture | Biology | FuseSchool
What are fertilisers? Fertilisers help to plants grow, thus increasing crop yields. They contain helpful nutrients and minerals like nitrogen, potassium and phosphorous which aid in plant growth. Excess fertilisers washing off fields causes a problem known as 'eutrophication'.
00:00:02,750 -- 00:00:09,000
put simply, fertilizer is plant food it
00:00:06,360 -- 00:00:11,670
can be natural or deliberately put into
00:00:09,000 -- 00:00:13,289
soil by people. Fertiliser contains
00:00:11,670 -- 00:00:16,470
different kinds of nutrients that are
00:00:13,289 -- 00:00:18,050
essential for plants to grow. Ever since
00:00:16,470 -- 00:00:19,770
people started pounding plants for food
00:00:18,050 -- 00:00:21,930
thousands of years ago
00:00:19,770 -- 00:00:24,570
they've commenced the quality of soil on
00:00:21,930 -- 00:00:26,730
the land when soil contains lots of the
00:00:24,570 -- 00:00:29,850
central nutrients crop plants can grow
00:00:26,730 -- 00:00:31,920
fast and produce large yields but when
00:00:29,850 -- 00:00:34,020
we harvest crops and then take them away
00:00:31,920 -- 00:00:36,600
and eat them we take the nutrients too
00:00:34,020 -- 00:00:38,370
so after years of growing plants the
00:00:36,600 -- 00:00:41,550
soil can't support crops very well
00:00:38,370 -- 00:00:45,089
unless we replace the nutrients using
00:00:41,550 -- 00:00:46,949
fertiliser. Most fertilisers contain
00:00:45,089 -- 00:00:48,600
nitrogen and phosphorus though some
00:00:46,949 -- 00:00:51,149
contain other useful elements like
00:00:48,600 -- 00:00:54,449
potassium. They can be organic or
00:00:51,149 --00:00:56,639
inorganic; organic fertilizer contains
00:00:54,449 -- 00:00:59,609
carbon and an example of an organic
00:00:56,639 -- 00:01:01,710
fertilizer is manure. In organic
00:00:59,609 -- 00:01:03,809
fertilisers can take many forms such as
00:01:01,710 -- 00:01:07,110
ammonium phosphate which can be in a
00:01:03,809 -- 00:01:08,730
crystal or a powdered form since we
00:01:07,110 -- 00:01:10,710
learn how to make vitalizes efficiently
00:01:08,730 -- 00:01:12,510
on a large scale we've been able to grow
00:01:10,710 -- 00:01:15,930
many more crops and therefore the human
00:01:12,510 -- 00:01:17,280
population has risen dramatically there
00:01:15,930 -- 00:01:19,050
can be problems with putting too much
00:01:17,280 -- 00:01:21,000
fertilizer into a natural system and
00:01:19,050 -- 00:01:24,080
some of the problems with fertilisers
00:01:21,000 -- 00:01:27,000
are explained in other videos. So, a
00:01:24,080 -- 00:01:28,590
fertilizer is a plant food that contains
00:01:27,000 -- 00:01:30,480
nutrients such as nitrogen and
00:01:28,590 -- 00:01:33,000
phosphorus and we use it to grow our
00:01:30,480 -- 00:01:35,570
crops bigger and faster so they produced
00:01:33,000 -- 00:01:35,570
more food
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VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
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This is an Open Educational Resource. If you would like to use the video, please contact us: [email protected]
What are fertilisers? Fertilisers help to plants grow, thus increasing crop yields. They contain helpful nutrients and minerals like nitrogen, potassium and phosphorous which aid in plant growth. Excess fertilisers washing off fields causes a problem known as 'eutrophication'.
00:00:02,750 -- 00:00:09,000
put simply, fertilizer is plant food it
00:00:06,360 -- 00:00:11,670
can be natural or deliberately put into
00:00:09,000 -- 00:00:13,289
soil by people. Fertiliser contains
00:00:11,670 -- 00:00:16,470
different kinds of nutrients that are
00:00:13,289 -- 00:00:18,050
essential for plants to grow. Ever since
00:00:16,470 -- 00:00:19,770
people started pounding plants for food
00:00:18,050 -- 00:00:21,930
thousands of years ago
00:00:19,770 -- 00:00:24,570
they've commenced the quality of soil on
00:00:21,930 -- 00:00:26,730
the land when soil contains lots of the
00:00:24,570 -- 00:00:29,850
central nutrients crop plants can grow
00:00:26,730 -- 00:00:31,920
fast and produce large yields but when
00:00:29,850 -- 00:00:34,020
we harvest crops and then take them away
00:00:31,920 -- 00:00:36,600
and eat them we take the nutrients too
00:00:34,020 -- 00:00:38,370
so after years of growing plants the
00:00:36,600 -- 00:00:41,550
soil can't support crops very well
00:00:38,370 -- 00:00:45,089
unless we replace the nutrients using
00:00:41,550 -- 00:00:46,949
fertiliser. Most fertilisers contain
00:00:45,089 -- 00:00:48,600
nitrogen and phosphorus though some
00:00:46,949 -- 00:00:51,149
contain other useful elements like
00:00:48,600 -- 00:00:54,449
potassium. They can be organic or
00:00:51,149 --00:00:56,639
inorganic; organic fertilizer contains
00:00:54,449 -- 00:00:59,609
carbon and an example of an organic
00:00:56,639 -- 00:01:01,710
fertilizer is manure. In organic
00:00:59,609 -- 00:01:03,809
fertilisers can take many forms such as
00:01:01,710 -- 00:01:07,110
ammonium phosphate which can be in a
00:01:03,809 -- 00:01:08,730
crystal or a powdered form since we
00:01:07,110 -- 00:01:10,710
learn how to make vitalizes efficiently
00:01:08,730 -- 00:01:12,510
on a large scale we've been able to grow
00:01:10,710 -- 00:01:15,930
many more crops and therefore the human
00:01:12,510 -- 00:01:17,280
population has risen dramatically there
00:01:15,930 -- 00:01:19,050
can be problems with putting too much
00:01:17,280 -- 00:01:21,000
fertilizer into a natural system and
00:01:19,050 -- 00:01:24,080
some of the problems with fertilisers
00:01:21,000 -- 00:01:27,000
are explained in other videos. So, a
00:01:24,080 -- 00:01:28,590
fertilizer is a plant food that contains
00:01:27,000 -- 00:01:30,480
nutrients such as nitrogen and
00:01:28,590 -- 00:01:33,000
phosphorus and we use it to grow our
00:01:30,480 -- 00:01:35,570
crops bigger and faster so they produced
00:01:33,000 -- 00:01:35,570
more food
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here: CHEMISTRY
Find all of our Biology videos here: BIOLOGY
Find all of our Physics videos here: PHYSICS
Find all of our Maths videos here: MATHS
Instagram: Instagram: fuseschool
Facebook: Facebook: fuseschool
Twitter: Twitter: fuseSchool
Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org
Follow us: fuseschool
Befriend us: Facebook: fuseschool
This is an Open Educational Resource. If you would like to use the video, please contact us: [email protected]
12 سال پیش
در تاریخ 1391/06/22 منتشر شده
است.
138,153
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