3种控释掺混肥对花生农艺性状和品质性状的影响

Effect of Three Kind Controlled Release Blend Bulk Fertilizers on the Agronomic Characters and Quality in Peanut

以控释肥料和普通单质肥料为原料制备了3种控释掺混肥料，研究不同控释掺混肥料品种对花生生长效应的影响。结果表明，控释掺混肥料能克服纯控释肥料花生苗期养分供应量不足和常规肥料生长后期养分供应不足的缺点，3种控释掺混肥的一次性施用显著优于一次性施用常规肥料。施用控释掺混肥对花生在不同生育时期叶绿素值、株高、根长、茎叶干重、根干重明显优于一次性施用常规肥料，并能明显提高产量、改善品质。每公顷增加产量3．05％～39．54％，果仁中粗脂肪的含量增加1．45％～4．61％，粗蛋白的含量增加0．08％～1．42％；氮磷钾利用率分别提高33．71％～68．01％，13．07％～32．12％和6．69％～24．43％。本试验以配方为N：P2O5：K2O为14：13：15的控释掺混肥肥效最好。

In order to made controlled release blend bulk fertilizers for peanut, three controlled release blend bulk fertilizers, were made of common straight fertilizers. The result showed that the blend bulk controlled release fertilizer could improve the plant height, chlaroohvll content （SPAD）, stem and leaf dry weight and root dry weight of peanut compared to common straight fertilizers at different growth stages. Comparing to single applying common fertilizers, the controlled release blend bulk fertilizers increased economic yield of per Chinese acre by 3.05-39.54%. In addition, the controlled release blend bulk fertilizers also showed a beneficial result on the peanut quality. In this experiment it improved the protein content of 0. 08%-1.42%, fat content By 1.45 %-4.61% in seed ,utility of nitrogen phosphors and potassium by 33.71%-68. 01%,13.07%-32.12% and 6.69%24.43%,respectively, It can be concluded that the con- trolled release blend bulk fertilizers whose nutrient ratio of N-P2O5-K2O in 14-13-15 was best mong the three different formula controlled release blend bulk fertilizers.