论文部分内容阅读
１０县市２０个田间试验，三种土壤（灰潮土田、潮土田、黄棕壤性水稻土）平均，单施钾水稻增产６．７％～１２．４％，单施锌增产７．２％，钾锌配施增产１３．３％～１６．３％；每公顷用６２．２５ｋｇ钾配合３．３ｋｇ锌的增产效果与１２４．５ｋｇ钾相当。表明钾锌配施有较好的互作效应，尤以在灰潮土田上效果最好。棕红壤性水稻土盆栽试验表明，钾锌配施可增加水稻植株含钾量，钾肥利用率比单施钾提高４．４～１４．９个百分点；同时可提高土壤有效钾、锌含量。
In 10 field experiments in 10 counties and cities, the average yields of three soils (ash-soil, tidal soil and yellow-brown paddy soil) were increased by 6.7% ~ 12.4% %, And the yield of potassium and zinc increased by 13.3% ~ 16.3%. The output of 62kgkg of potassium and 3.3kg of zinc per hectare was equivalent to that of 124.5kg of potassium. Potassium and zinc show that with a good interaction effect, especially in the ash tide field best. Brown pot experiment in paddy soils showed that potassium and zinc could increase the potassium content of rice plants, and the potash utilization rate increased by 4.4 ~ 14.9 percentage points than that of potassium application. At the same time, the available potassium and zinc contents in soil increased.