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为明确种植方式对糜子产量的影响,以抗旱高产糜子品种‘陕糜1号’为材料,常规等行距条播为对照(CK),研究等行距穴播(CX)、宽窄行条播(KT)和宽窄行穴播(KX)3种不同种植方式对糜子地上部干物质积累、顶三叶叶绿素含量及产量的影响。结果表明,糜子抽穗后,不同种植方式的地上部分干物质积累量均呈现先上升后随植株衰老下降的趋势;叶片、叶鞘和茎秆干物质积累呈单峰变化趋势,在抽穗后14d达到最大值;籽粒随着生育期推进呈“S”型增长趋势;顶三叶叶绿素相对含量(SPAD值)在抽穗14d后总体呈下降趋势。CX、KT和KX 3种种植方式的干物质积累量、顶三叶叶绿素含量均显著高于CK;KX、KT 2种种植方式下的产量显著高于CX、CK,但CX与CK的产量差异不明显。综合分析显示,因地制宜选择宽窄行种植方式是糜子增产增效的关键栽培措施。
In order to clarify the effects of planting patterns on the yield of Millet, the experiment was conducted on the barley varieties ’Xianmi 1’ with drought resistance and high yield as CK. The CK, CK, KT, KT, Effects of Three Kinds of Different Cropping Patterns on Dry Matter Accumulation, Chlorophyll Content and Yield of Top Clover of. The results showed that the accumulation of dry matter of above-ground parts of all the cultivars increased firstly and then decreased with senescence of plant, and the dry matter accumulation of leaves, sheaths and stems showed a single-peak change trend, reaching the maximum 14 days after heading Value; The grain showed a “S” shape with the growth of the growth stage; The relative content of chlorophyll (SPAD) of the top clover decreased gradually after 14 days of heading. The dry matter accumulation and the chlorophyll content in top clover were significantly higher than those in CK, KX and KT. The yield of KX and KT was significantly higher than that of CX and CK, but the difference between the yield of CX and CK Not obvious. Comprehensive analysis shows that, according to local conditions to choose wide and narrow row planting is the key cultivation measures to increase production and efficiency.