稀土拌种对玉米产量的影响

试验表明，玉米使用不同量的农用稀土拌种均有增产效果。以０４ｇ稀土／ｋｇ种子拌种增产率最高，为１５８％。其次，０８ｇ稀土／ｋｇ种子拌种增产率为１０８％。玉米稀土拌种百粒重、穗长、穗粗与产量直接通径作用大。穗长和百粒重的互作效应以及百粒重、穗长、穗粗单效应成为影响产量的主要因素。

Effect of Dressing Seeds with Rare Earths on Yield of Corn

This test proved using various amount of agricultural rare earths for the corn seed dressing could increase yield of corn. The highest rate of increasing yield reached 15.8% when corn seeds were dressed with rare earths at dose of 0.4g/kg seed, followed by at dose of 0.8g/kg seed, which gave 108% of rate of that. The 100 grain weight, spike length and spike thick of corn dressed with rare earths have a great direct path action on yield. Mutual effect of spike length and the 100 grain weight and single effect of the 100 grain weight, spike length and spike thick become maior factors influencing yield.