摘要
采用随机区组设计,研究了保水剂与化肥配合施用对大豆生长发育、产量以及对土壤速效养分变化的影响。结果表明,保水剂与化肥配合施用后,株高、茎粗均增加,植株表现出良好的生长势头;在产量构成因子中,百粒重增加1.13-2.40g,其中常规施肥＋保水剂0.5kg/667m2处理增产率为16.6%;施入保水剂后,土壤速效养分释放得到了明显的改善,达到了缓释作用。
The effects of the application of drought-resistant agents and fertilizer on soybean growth, yield and the soil available nutrients were conducted using a randomized block design. The results show that application of drought-resistant agents and fertilizer increases the plant height and the stem diameter and decreases the empty flat rate of seeds. The 100-grain weight in- creased 1.13 - 2.40 g and yield increase by i6.6% in conven- tional fertilization ＋ drought-resistant agents 0.5 kg/667m2 treatment. The improvement of available nutrient release in soil enhances nutrient use in the whole growth time after application of drought-resistant agents.
出处
《大豆科技》
2011年第4期44-46,共3页
Soybean Science & Technology
关键词
保水剂
化肥
生长发育
产量
Drought-resistant agents
Fertilizer
Growth
Yield
