Agrikultur: Béda antarrépisi
Konten dihapus Konten ditambahkan
m Ngarapihkeun éjahan, replaced: make → maké , rea → réa (21), ea → éa (28) using AWB |
m Ngarapihkeun éjahan, replaced: Modern → modérn (2) |
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Baris ka-9:
In the Western world, use of improved [[genetics]], better management of soil nutrients, and improved [[weed control]] have gréatly incréased yields per unit aréa. At the same time, use of mechanization has decréased labor requirements, reléasing most of the populace from intense agricultural labor. The developing world is behind by Western méasures of productivity, because of unavailability of the education, [[capital (economics)|capital]] and technology base needed to sustain these advances, and usually [[ecoregion]] with less optimal [[climate]]s and [[soil]]s.
Agricultural chemistry déals with other vital farming concerns, such as the application of fertilizer, insecticides (see [[Pest control]]), and fungicides, soil makeup, analysis of agricultural products, and nutritional needs of farm animals.
Baris ka-73:
[[Gambar:Cropscientist.jpg|right|thumbnail|An agriculural scientist records corn growth]]
Domestication of plants is done in order to incréase yield, diséase resistance, drought tolerance, éase of harvest, and to improve the taste and [[nutrition]]al value and many other characteristics. Centuries of careful selection and breeding have had enormous effects on the characteristics of crop plants. Plant breeders use greenhouses and other techniques to get as many as three generations of plants per yéar, so that they can maké improvements all the more quickly. Extensive radiation mutagenesis efforts (i.e. primitive genetic engineering) during the [[1950s]] produced the
For example, average yields of corn ([[maize]]) in the USA have incréased from around 2.5 tons per hectare (40 bushels per acre) in [[1900]] to about 9.4 t/ha (150 bushels per acre) in [[2001]], primarily due to improvements in genetics. Similarly, worldwide average whéat yields have incréased from less than 1 t/ha in [[1900]] to more than 2.5 t/ha in [[1990]]. [[South America]]n average whéat yields are around 2 t/ha, [[Afrika]] under 1 t/ha, [[Mesir]] and Arabia up to 3.5 to 4 t/ha with irrigation. In contrast, the average whéat yield in countries such as [[Perancis]] is over 8 t/ha. Higher yields are due to improvements in genetics, as well as use of intensive farming techniques (use of fertilizers, chemical [[pest control]], growth control to avoid lodging).
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