综合栽培措施 很抱歉，暂未找到该词条在当前类别下的译词。您可以查看在所有学科下的译词，或按此添加。 没有找到相关双语例句 没有找到相关例句          A larger amount of pesticides and fertilizers are generally used in vegetable growing in greenhouses, which normally cause the products to be polluted and harmful. By taking the advantage of the favorable condition of the greenhouses and applying an appropriate complex control methods, like building a rationally-structured greenhouse with .good lighting, heat preservation,, ventihion, and selecting good varieties of vegetables, improving the technology, scienufic management, the author of the article states...             　针对保护地蔬菜生产中农药和化肥使用量较大、易对其产品造成污染产生公害的现状,总结出综合栽培措施;建造结构合理和采光、保温、通风性能良好的保护地栽培设施;选用适合保护地栽培的蔬菜品种;改进栽培技术,实行科学管理;采用综合的病虫害防治技术等. 文摘来源          Integrative planting methods of Yam have been positively tested with two times rotary regression, and the modes of optimizing output has been set up. And the relationship of five testing factors was analyzed with the conception of maximum in Math and the theory of marginal utility of agricultural economics. And the relationship between harvesting the highest output, getting the highest economical effects of Yam (high quality, highest effects) and the weight of earthnut of Yam, the density of planting and th...             对山药综合栽培措施进行了二次旋转回归正交试验,建立了优化产量模型,根据数学中函数极大值的概念和农业经济学边际效应理论,分析了5个试验因素的关系,筛选了优化产量数学模型的山药农艺措施,并分别求出五因素中4个因素处于平均水平时,山药获取最高产量和最大经济效益(优质产品最高的山药种块重量、种植密度和氮、磷、钾施用量。为总结山药高产、优质配套栽培、优化农艺措施提供了可靠的科学依据。 文摘来源       相关查询:  对查询结果不满意

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