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我省地处黄河中游,秦岭横亘东西,其北为黄河流域,其南属长江水系。地理位置,东径105°29′—111°15′,北纬31°42′—39°35′。南部多山,北部多丘陵,中部平原,为我国农业发展最早的地区之一。全省土地面积约19.58万平方公里。粮食作物以小麦为主,播种面积和产量约占粮作的三分之一至五分之二。由于地区宽广,耕作制度多样,小麦分布遍及全省,栽培历史悠久,西汉中期已广泛种植。在自然和人工选育下,创造了许多性状极
The province is located in the middle reaches of the Yellow River, Qinling runs through things, the north of the Yellow River Basin, its south is the Yangtze River. Its geographical location is 105 ° 29'-111 ° 15 'east and 31 ° 42'-39 ° 35'N. There are many mountains in the south, many hills in the north and the plain in the middle. It is one of the earliest areas for agricultural development in our country. The province's land area of about 195,800 square kilometers. The main crops are wheat, with sown area and output accounting for about one-third to two-fifths of the total. Due to the wide area and diversified farming system, wheat is distributed throughout the province and has a long history of cultivation. The mid-Western Han Dynasty has been widely planted. Under natural and artificial breeding, many traits have been created