对果树下间作玉米优化调控试验表明，岷江上游干旱河谷区果树下玉米间作品种以早或中熟、矮株型的品种（黄早４×Ｒ１０试１１３、４０８８×Ｒ１０试１１３、川农单交９号和３４０×Ｒ１０试１１３）表现好，可有效提高产量３．９％～２２％，并且减小对果树的影响，值得大力推广；试验的玉米芯育苗技术合理实用，所有肥液处理下的都能增产．其中，３ｋｇ过磷酸钙／５０ｋｇ水肥液浸泡处理玉米芯条件下的育苗移栽，增产最高，可达３６．８％，人畜粪水、２．５ｋｇ尿素／５０ｋｇ水、１．５ｋｇ尿素／５０ｋｇ水和５ｋｇ复合肥／５０ｋｇ水肥液浸泡处理条件下的，增产也在２０％以上，２ｋｇ过磷酸钙／５０ｋｇ水肥液浸泡的处理增产为１６．７％．这些肥液浓度是该区玉米芯育苗较合理的处理浓度，但１２～１５ｄ的浸泡处理时间太短，致使育苗成功率低；栽培方式试验结果显示，每公顷４５０００窝，每窝双苗，受光叶南北或近南北定向可明显提高产量 Optimized regulation of corn under intercropping test showed that in the upper reaches of the Minjiang River valley under the fruit tree intercropping varieties of early or middle-maturing, low-type varieties (yellow morning 4 × R10 test 1 1 3,4088 × R10 test 1  1  3, Chuannong single cross 9 and 340 × R10 test 1  1  3) good performance, which can effectively improve the yield of 3.9% to 22%, and reduce the impact on the fruit trees, it is worth to promote; test The corn cob nursery technology is reasonable and practical, all fertilizer treatment can increase production. Among them, 3kg superphosphate / 50kg fertilizer soaking maize seedlings under the condition of seedling transplanting, the highest yield, up to 36.8%, human and animal manure, 2.5kg urea / 50kg water, 1.5kg urea / 50kg water And 5kg compound fertilizer / 50kg water and fertilizer soaking treatment conditions, the yield is also above 20%, 2kg superphosphate / 50kg fertilizer treatment soaking yield increase of 16.7%. The concentration of these fertilizer is the reasonable treatment concentration of corncob nursery in this area, but the soaking treatment time is too short for 12 ~ 15d, resulting in low success rate of nursery. The cultivation method test shows that 45000 litters per hectare and double seedling per litter, Ye North or near North-South orientation can significantly improve the yield