基肥、种肥施用技术对东北春玉米苗期生长及产量的影响
本文在春玉米主产区-吉林省梨树县开展田间试验，以先玉335为供试品种，设置不同基肥、基肥与种肥分施、基肥与种肥混施以及基肥、种肥施用位置等处理方式，研究了基肥、种肥施用技术对玉米早期干物质积累、根系生长及产量的影响。结果表明，在农民习惯一次性施肥条件下，FP1-5-8处理（基肥施用位置在种子侧方5cm，下方8cm）的产量比FP1-5-5处理（基肥施用位置在种子侧方5cm，下方5cm）提高8.0%，而且在玉米苗期具有一定的优势，； DAP处理的干物质积累量和根系生长在苗期表现出明显的优势，四种不同基肥种类综合壮苗效果和产量效应来看，DAP 处理>AS+MCP处理>MAP处理>NPF处理；B-S-Mix处理的产量和苗期植株生长与B-S-Split处理相比都有一定幅度的提高，将种肥施用在种子侧方5cm，下方5cm的位置更为合适，且壮苗效果更为明显。
英文摘要:
The field experiment was carried out in main spring maize production region-lishu county of Jilin province , Xianyu 335 was used as the experimental variety, different basal fertilizer, basal fertilizer and seed fertilizer silted or mix , fertilizer placement were designed, studied the dry matter accumulation, root growth and yield on maize of the basal and seed fertilizer application technology , the results showed that FP1-5-8 treatment (basal fertilizer placement was in seed side 5cm, below 8 cm)yield was 8.0%higher than FP2-5-5 treatment(basal fertilizer placement was in seed side 5cm, below 5 cm), and had better growth at seeding stage; DAP treatment showed obvious advantage of dry matter accumulation and root growth at seeding stage, from effect of strong seeding and yield for four types of different basal fertilizer, DAP treatment >AS+MCP treatment >MAP treatment > NPF treatment; the yield and plant growth of B-S-mix treatment was better than that of B-S-split treatment, the more appropriate seeding fertilizer placement was in seed side 5cm, below 5cm, and had stronger seeding performance.
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