坡耕地马铃薯套玉米等高聚垄配置地埂植物种植研究

目的]筛选适宜坡耕地的耕作技术措施。方法]以马铃薯威芋3号,玉米毕单15号,地埂植物路春花为供试材料,设顺坡聚垄、等高聚垄和等高聚垄+种植路春花3个处理进行坡耕地马铃薯套玉米等高聚垄配置地埂植物种植试验。结果]与对照顺坡聚垄处理相比,等高聚垄+种植路春花处理的马铃薯产量14392.05 kg/hm2、玉米产量5417.25 kg/hm2、马铃薯与玉米复合产量19809.30 kg/hm2、复合经济效益12223.65元/hm2,分别增加了17.04%、11.22%、15.39%、13.61%;土壤容重降低0.04 g/cm3;土壤含水量和全氮分别增加1.77个百分点和0.009个百分点;土壤有机质、速效氮、速效磷和速效钾分别增加0.05%和4、1、3 mg/kg。结论]等高聚垄+种植路春花种植法能提高坡耕地产出率和经济效益,保水、保肥效果好,是坡耕地理想的耕作方式。

Planting Test on Equal-height Ridging Allocation Field Bund Plants of Potato Interplanting with Maize in Slope Farmland

Objective] The study aimed to screen the cultivation technique that could be used suitably in slope farmland.Method] With potato variety Weiyu 3,maize variety Bidan 15 and the field bund plant of Luchunhua as the tested materials.3 treatments of down slope ridging,equal-height ridging and equal-height ridging + planting Luchunhua were set up to make the experiment on equal-height ridging allocation field bund plants of potato interplanting with maize in slope farmland.Result] Compared with the treatment of down slope ridging(CK),the yields of potato and maize and their mixed yield and economic benefit were 14 392.05 kg/hm2,5 417.25 kg/hm2,19 809.30 kg/hm2 and 12 223.65 yuan/hm2,resp.in the treatment of equal-height ridging + planting Luchunhua,increasing by 17.04%,11.22%,15.39% and 13.61% resp.;the soil bulk density was decreased by 0.04 g/cm3;the water content and total N in soil was increased by 1.77 and 0.009 percentage point;the organic matter,the available N,available P and available K in soil were increased by 0.05% and 4,1,3 mg/kg.Conclusion] The method of equal-height ridging + planting Luchunhua could increase the output rate and economic benefit in slope farmland with good water and fertilizer conservation,so it was a ideal cultivation way in slope farmland.