叶面喷施乙烯利对花生植株养分积累的影响

为了确定花生生产中乙烯利的最佳喷施时期及最适用量,以湘花2008为材料,研究了不同喷施时期及不同浓度乙烯利对花生植株氮(N)、磷(P)、钾(K)、钙(Ca)、镁(Mg)等养分分布、积累、转运的影响。结果表明:高浓度乙烯利处理均不利于植株N、P、K、Ca的积累;盛花期喷施高浓度乙烯利对植株中营养元素积累的抑制作用比幼果期喷施更明显;幼果期喷施200 mg/L乙烯利对各生育期植株中N、P、K、Ca、Mg的积累量均有促进作用。因此,建议乙烯利的最佳喷施时期为幼果期,最适浓度为200 mg/L。

Effect of Foliar Spraying Ethephon on Nutrient Accumulation of Peanut

In order to explore the optimum spraying time and the applicable amount of ethephon on peanut, using Xianghua 2008 as materials, to study the effects of spraying different period and different concentrations of ethephon on peanut plant nutrient distribution, accumulation and translocation of nitrogen (N) , phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg). The results showed that high concentrations of ethephon were not conducive to plant accumulation of N, P, K, and Ca;lfowering period spraying high concentration ethephon on inhibition of nutrient accumulation in plants was more obvious than young fruit period;spraying 200 mg/L ethephon in young fruit period had promoting effect on accumulation of N, P, K, Ca, Mg in different growth period. The best spraying time was therefore recommended for ethephon at young fruit period, the optimal concentration is 200 mg/L.