果树施用硅钙复混肥效应的研究

Srudy of the Effects of Compound Si-Ca Fertilizer on Fruit

１９９４～１９９６年，在硅钙肥开发应用研究中，开展了果树应用硅钙复混肥效应研究。研究结果表明，在氮磷钾配比为１３：６：６的条件下，加硅钙肥２５％，可使产量增加６％～２２％，加硅钙肥５４％，可使产量增加１３％～２７％。考虑各种营养元素的均衡吸收，复混肥中硅钙肥的掺入量可占２５％或适当再多点。复混肥中钾量减半基本不增产，无钾则减产，说明钾肥用量应接近氮量的一半，不可任意削减。

Results showed that the yield increased by 6%22%when 25%of silicon and calcium was added into the compound fertilizer with the ratio of nitrogen phosphor and potassium to be 13:6:6 ;and by 13%27%when 54%of silicon and calcium was added,Giving consideration to balanced absorption of all kinds of nutrient,the proper,content of silicon and calcium in the fertilizer should be fixed at 25%or more,When the amount of potassium was reduced to its half in the fertilizer,the yield did not increase,when removed,the yield decreased,This indicated that the amount of potassium should be kept at about half of the nitrogen and should not be reduced at Will