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使用不同组合的化控技术进行大田玉米种植试验,研究不同化控模式对土壤水分、玉米生长及产量和品质等方面的影响效应。结果表明:浓度75kg/hm2保水剂+喷施黄腐酸+撒施改良剂的化控使用模式下整体效果最好,土壤含水率基本保持稳定,各生长指标和品质指标增长幅度整体最大;与对照组相比,籽产量增加17.62%,粗蛋白增加9.94%,拔节期叶面积增大41.95%,总干物质增加37.38%。
Different combinations of chemical control technology were used to carry out field corn planting experiments to study the effects of different chemical control modes on soil moisture, corn growth, yield and quality. The results showed that the overall effect was best under the chemical control mode with 75 kg / hm2 water retaining agent + spraying fulvic acid + spreading improver, and the soil moisture content basically remained stable with the largest increment of growth index and quality index; Compared with the control group, the seed yield increased by 17.62%, the crude protein increased by 9.94%, the increased leaf area at jointing stage increased by 41.95% and the total dry matter increased by 37.38%.