The results showed that the best water management pattern of fuji apple orchard was wheat straw mulching under low annual precipitation and grass planting under high annual precipitation . the comprehensive analysis was carried out on effects of different water management patters on yield of fuji apple , soil water conservation and soil organic matter of fuji apple orchard , growth in various stages and fruit quality of fuji apple under different annual precipitation 结果表明，在干旱年份，红富士苹果园水分管理模式以秸秆覆盖方式最佳，在多雨年份，红富士苹果园水分管理模式以果园种植白三叶草方式最佳；并综合分析了不同降水年型不同水分管理模式对红富士苹果产量的影响，不同水分管理模式对果园土壤含水量和土壤有机质的影响及不同水分管理模式对红富士苹果生长状况、外观品质、内在品质的影响。
The basic principle , main properties , typical parameters , technical characteristics and general situation of klystron are introduced . the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically , a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method , and in terms of it , the gain in the linear regime calculated , a field analysis method is proposed . the theory analysis shows that the characteristic parameters , such as resonance frequency , real part of gap - impedance , external quality fadtor in all kinds of klystron output circuits including single - beam , multi - beam , single - gap , multi - gap , single - beammulti - gap , multi - beam multi - gap klystron output circuit , can be calculated by the field analysis method 本文系统的介绍了速调管的工作原理、主要特点、发展概况、主要性能指标和技术特点,解析的研究了电子束在相对论速调管放大器的调制腔和漂移管中的预群聚;用粒子波互作用的场方法导出了在辐射腔中预群聚电子束产生辐射的自洽方程,同时对线性区的增益进行了计算。理论分析表明,场分析法可用于计算单注单间隙、多注多间隙、单注多间隙和多注多间隙速调管输出回路的谐振频率、间隙阻抗实部和外观品质因数等特性参数。
The results show that original bamboo vinegar , together with neutralisation bamboo vinegar may not only add yield and improve character such as improve fruit storage owing to change rigidity , regulate time for fruit mature , improve quality and prolong natural life for leaf , but may reduce shatter and disease 结果表明：竹醋液不仅显著地提高农林作物的产量，改善果品的内在品质和外观品质，提高果实硬度从而改善果实的储藏品质，能调控果实成熟时间，具有明显改善叶片质量，延长叶片寿命等功能，在减少锈斑面积、落叶、落果和病害等方面均有显著作用。
