通过对内蒙古自治区大豆主栽品种的密度、施磷量、施钾量、种肥氮量、追肥氮量5项农艺栽培技术措施的综合试验研究，系统地分析了5项农艺措施对产量影响的单因素和交互效应，阐明了5项农艺栽培措施的产量效益。实现大豆单产200kg/667m2以上产量的优化农艺栽培措施是：株数2.53-2.75×104株/667m2；施磷量（P2O5）4.56-5.44kg/667m2；施钾量（K2O）5.77-6.74kg/667m2；种肥氮量2.73-3.18kg/667m2；追氮肥2.49-2.91kg/667m2。

本文对春小麦两个品种在不同密度、施肥量处理下群体库的形成与特性以及在产量形成中的作用进行了系统的研究，结果表明：春小麦籽粒体积（库容量）随生育进程呈单峰曲线变化，籽粒灌浆速率（库的充实）随生育进程呈S型曲线变化；每穗结实粒数（库）与开花期、乳熟期群体干物质源的供应呈显著正相关。籽粒体积与灌浆速率及粒重呈极显著正相关，由此说明扩大库容（籽粒体积），可以促进源的生产、运转与积累，提高籽粒重量。

Decision support system is a new computer application field. It is developed up in the middle of 80s. C.T. Kitzmiller et al. firstly put forward the couple system in industry circle and integrated symbolic with numerical computing in expert System. In recent year, the couple system that made up of two technique is gradually accepted by researcher who working at agricultural expert system and called agricultural decision support system or expert system based on model. At present the most successful one is GOSSYM/COMAX system based on cotton simulation model. It has improved the performance and practicality of GOSSYM greatly. The MOCMDSS that developed by professor Liu Keli etc. (Inner Mongolia Agriculture University) is the expert system based on model on the basis of combinative experiment sited different place in many years. The system can provide comprehensive, precise, Fast guidance for maize high-yield and high-efficient cultivation management in main growing region, Furthermore, the economic benefit is prominent, It has the strong character of science, application, practical and universal. It is easy to transplant and expand. Therefore, it has brilliant application prospect for improving the level of maize management and production in our country.

本文通过对春小麦钾素的吸收积累动态进行系统的研究，结果表明：春小麦全生育期内植株体内含钾量呈逐渐下降趋势，在苗期至分蘖末期最高，到完熟期降至一生中最低值。春小麦一生中吸钾高峰在分蘖末期。且因不同密度、施肥处理表现一定差异：高密度、高钾肥处理吸收钾素相对较多，而氮磷钾平衡配施处理对钾素的吸收量始终维持在较高水平，且经济产量最高。春小麦一生中钾素的积累量与生育进程间的关系符合二次曲线变化。

本文对内蒙古呼盟与乌盟旱作马铃薯优化栽培下的干物质积累状况进行了研究。结果表明：马铃薯全生育期植株干物质积累量呈“S”型曲线变化,干物质积累速率呈单峰曲线,峰值出现在块茎快速增长期,干物质积累百分率以块茎增长后期至淀粉积累期较高；马铃薯生育期间不同器官干物质积累中心依次为叶片、地上茎、块茎；两地区不同品种优化栽培下的各项栽培生理指标均优于一般生产田和不施肥处理，其产量差异达显著或极显著水平。