如何(he)正(zheng)確選擇(ze)小麥品種
正確選擇(ze)小麥(mai)(mai)(mai)品種(zhong),是實現(xian)小麥(mai)(mai)(mai)高產的(de)關鍵。面對市場上眾多不一的(de)小麥(mai)(mai)(mai)品種(zhong),究竟該如何(he)選擇(ze)呢(ni)?根據近年(nian)來(lai)不同小麥(mai)(mai)(mai)品種(zhong)的(de)表(biao)現(xian),焦作(zuo)市農技(ji)站提(ti)醒廣大農民,在選擇(ze)小麥(mai)(mai)(mai)種(zhong)子時(shi),應(ying)把握好以(yi)下幾個原則:
一(yi)是(shi)因(yin)地(di)選(xuan)擇小(xiao)麥(mai)品種(zhong)(zhong)(zhong)。因(yin)地(di)選(xuan)種(zhong)(zhong)(zhong)就是(shi)指根據種(zhong)(zhong)(zhong)麥(mai)地(di)塊所在(zai)的區域,進(jin)行合理選(xuan)種(zhong)(zhong)(zhong)。平(ping)原區以豫麥(mai)49、豫麥(mai)58、豫麥(mai)25、溫(wen)麥(mai)19號等(deng)系列為(wei)主,搭配種(zhong)(zhong)(zhong)植周麥(mai)16、周麥(mai)18等(deng);丘陵、灘區以及旱地(di)以豫麥(mai)25為(wei)主,搭配豫麥(mai)41、孟12等(deng)。
二是(shi)因時(shi)選(xuan)擇小麥(mai)(mai)(mai)(mai)(mai)(mai)品種(zhong)(zhong)。因時(shi)選(xuan)種(zhong)(zhong)就是(shi)根據種(zhong)(zhong)麥(mai)(mai)(mai)(mai)(mai)(mai)時(shi)期,進行合理(li)選(xuan)種(zhong)(zhong)。如果在10月3日至(zhi)20日播種(zhong)(zhong),應(ying)選(xuan)擇半冬性(xing)品種(zhong)(zhong),主要有豫(yu)(yu)麥(mai)(mai)(mai)(mai)(mai)(mai)49、豫(yu)(yu)麥(mai)(mai)(mai)(mai)(mai)(mai)58、豫(yu)(yu)麥(mai)(mai)(mai)(mai)(mai)(mai)41、豫(yu)(yu)麥(mai)(mai)(mai)(mai)(mai)(mai)25、溫(wen)(wen)麥(mai)(mai)(mai)(mai)(mai)(mai)19號、周(zhou)麥(mai)(mai)(mai)(mai)(mai)(mai)16、周(zhou)麥(mai)(mai)(mai)(mai)(mai)(mai)10、孟12等(deng)品種(zhong)(zhong)。在購買時(shi),要結合地(di)塊所在的區域,進行合理(li)選(xuan)種(zhong)(zhong)。因特殊原因,需在10月20日后(hou)播種(zhong)(zhong)以及(ji)稻(dao)田(tian)、棉田(tian)等(deng)晚(wan)茬(cha)地(di),應(ying)選(xuan)擇弱春性(xing)品種(zhong)(zhong),如豫(yu)(yu)麥(mai)(mai)(mai)(mai)(mai)(mai)18、溫(wen)(wen)優1號等(deng)。
三是確(que)定(ding)適宜播(bo)(bo)(bo)(bo)(bo)期(qi)和(he)播(bo)(bo)(bo)(bo)(bo)量(liang)。根(gen)據品(pin)種(zhong)特性,合理確(que)定(ding)小(xiao)麥(mai)播(bo)(bo)(bo)(bo)(bo)期(qi)和(he)播(bo)(bo)(bo)(bo)(bo)量(liang)。在(zai)當前農(nong)業生(sheng)產(chan)(chan)和(he)氣(qi)候條件下,半(ban)(ban)冬(dong)性品(pin)種(zhong)晚(wan)播(bo)(bo)(bo)(bo)(bo)或播(bo)(bo)(bo)(bo)(bo)量(liang)過大易造成減產(chan)(chan),弱春(chun)性品(pin)種(zhong)早播(bo)(bo)(bo)(bo)(bo)易形成凍害。因此,半(ban)(ban)冬(dong)性品(pin)種(zhong)宜在(zai)10月3日(ri)(ri)至20日(ri)(ri)播(bo)(bo)(bo)(bo)(bo)種(zhong),每畝播(bo)(bo)(bo)(bo)(bo)量(liang)一(yi)般為(wei)6~9公斤,如(ru)果整地質量(liang)差(cha)、墑情(qing)不足,可(ke)適當增(zeng)加播(bo)(bo)(bo)(bo)(bo)量(liang)。弱春(chun)性品(pin)種(zhong)宜在(zai)10月20日(ri)(ri)以后播(bo)(bo)(bo)(bo)(bo)種(zhong),每晚(wan)播(bo)(bo)(bo)(bo)(bo)一(yi)天,每畝增(zeng)加0.5公斤。