吉林省谷子高产栽培技术研究

STUDIES ON HIGH YIELD CULTIVATION OF MILLET IN JILIN PROVINCE

在前两报中对谷子个体生长发育规律和氮肥的适宜施用时期、数量及效果进行了讨论。第三、四、五报侧重研讨获得谷子高产在播期、密度、防倒伏方面应该采取的有效措施。即:改早播为晚播,在保墒条件下谷子最适宜的播期为4月末—5月初;在中等肥力条件下,中晚熟品种最适宜的密度为每亩4.5—5万株。中熟品种每亩为6.5万株;整地质量好的田块,每亩应播种0.4—0.5公斤。整地质量一般或稍差的田块,每亩应播种0.6—0.7公斤’播幅在12—15厘米为宜,肥地上选用中熟中穗型品种,用加大密度的方法控制单穗粒重、增加总粒重,是谷子防倒增收的有效途径。

Millet individual growth and the suitable time,the numbers,the effects of opplying nitrogen fertilizer properly have beendiscussed in the two preceding reports.The third report is todiscuss the effective measures of sowing time,plant densities andpreventing lodging for getting high yield of millet,that is,changing sowing date from early to late,the suitable sowing period isfrom the end of april to the begining of May Under the preser-vation of soil moisture.Under medium fertility the most suitabledensities of medium-late maturity variety and medium maturityvariety are 675,000—750,000 plants per hectare,and 950,000 plantper hectare respectively.In the fields of good soil prepara-tion6—7.5Kg of millet seeds should be sown per hectare.while9—10Kg millet seeds should be sown per hectare in the fieldsof mediocre or less scil preparation.12—15cm sowing width withinthe row of millet is suitable.It is the effective ways to prevenmillet loding and to increase yield that the millet varieties ofmedium maturity-medium ear type are selected and the grain weightper ear is controlled,the total grain weight is increased byincreasing of densitis in the rich soil.