| 施肥及密度对甜玉米果穗商品性及土壤性状的影响 |
| |
| 引用本文： | 王俊花,邵林生,闫建宾,王瑞钢,庞旭,张雪彪.施肥及密度对甜玉米果穗商品性及土壤性状的影响[J].贵州农业科学,2016(12):38-42. |
| |
| 作者姓名： | 王俊花 邵林生 闫建宾 王瑞钢 庞旭 张雪彪 |
| |
| 作者单位： | 山西省农业科学院高粱研究所,山西晋中,030600 |
| |
| 基金项目： | 山西省科技支撑计划项目“甜糯玉米新品种及高优配套栽培技术示范推广”(晋财农发(2015)20)，山西省科技厅成果推广项目“农作物新品种的种植及推广应用”(2014071001-1) |
| |
| 摘 要： | 为探明适宜山西晋中地区甜玉米高产高效栽培的优化组合,采用田间试验方法,研究施肥水平(A1单施化肥、A2化肥农家肥混施)和种植密度(B154 000株/hm~2、B257 000株/hm~2、B360 000株/hm~2、B463 000株/hm~2)对迪甜6号产量、果穗商品性及土壤性状的影响。结果表明:各处理鲜穗产量A2B3A2B2A1B2A2B1A1B3A1B1A2B4A1B4。穗长随着密度的增加均呈下降趋势。化肥农家肥混施在高密度条件下可显著降低秃尖长度,增加穗粗和鲜穗质量。A2比A1籽粒含糖量高3.2%,缩短籽粒糖分积累的时间0.69d。A1在57 000株/hm~2时商品果穗数最高,为53 445穗/hm~2;A2在60 000株/hm~2时商品果穗数最高,为55 405穗/hm~2。A2土壤容重显著低于A1,土壤孔隙度极显著高于A1。土壤容重与穗长、商品果穗数呈显著的负相关,与穗粗、产量呈极显著的负相关。土壤孔隙度与商品果穗数、产量呈极显著的正相关。单施化肥(A1)最适种植密度为57 616株/hm~2;化肥农家肥混施(A2)最适种植密度为61 892株/hm~2。
|
| 关 键 词： | 施肥 密度 甜玉米 果穗商品性 土壤性状 |
Influence of Fertilization and Density on Sweet Maize Ear Commodity and Soil Characters |
| |
| Abstract: | To explore optimum composition of high production and efficiency cultivation for local sweet maize,influences of fertilization and planting density on production and ear commodity of Ditian 6,and soil characters were studied by using field experiment method.A1 was separate chemical fertilizers,and A2 was farmyard manure mixed applied fertilizers.B1 ～B4 was respectively 54 000,57 000,60 000 and 63 000 plants/hm2.Results:Production processing A2 B3 ＞A2 B2 ＞A1 B2 ＞A2 B1 ＞A1 B3 ＞A1 B1 ＞A2 B4 ＞A1 B4.Ear length showed a trend of decline with the increase of density.Under the condition of high density farmyard manure mixed applied fertilizers could significantly reduce bald tip length,increase ear diameter and fresh ear weight.A2 increased by 3.2％ grain sugar content,and shortened the time of grain soluble sugar accumulation 0.69 days.In 57 000 plants/hm2,A1 highest commodity ear number was 53 445;in 60 000 plants/hm2,A2 highest commodity ear number was 55 405.A2 soil bulk density was significantly lower than A1,soil porosity significantly higher than A1.Soil bulk density had significant negative correlation with ear length and commodity ear number,and very significant negative correlation with ear diameter and yield.Soil porosity had significant positive correlation with commodity grain number and yield.Separate chemical fertilizers suitable planting density was 57 616 plants/hm2;Farmyard manure mixed applied fertilizers suitable planting density was 61 892 plants/hm2. |
| |
| Keywords: | fertilization density sweet corn ear commodity soil characters |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
