【作者】 于波；

【导师】 杨培岭； 刘洪禄；

【作者基本信息】 中国农业大学 ， 农业水土工程， 2005， 硕士

【摘要】 发展节水型果园,提高水的有效利用率,是保证京郊农业可持续发展的重要问题。蓄水保墒技术的应用是一项重要的节水抗旱增产技术,近年来发展迅速,本文主要研究两部分内容:以新型产品--“科瀚98”高效抗旱保水剂为材料,在对保水剂的吸水保水特性、保水剂与肥料的相互作用研究的基础上,对在京郊果园施用保水剂的效应进行了研究:对京郊采用秸秆覆盖技术进行研究。为达到研究目的,作者开展了严密的试验研究,通过研究发现:(1) “科瀚98”保水剂吸水能力与溶液的离子浓度、pH值等相关,建议同保水剂同时使用时,旱地龙建议采用喷施,而不应该随水浇灌。(2) 不同保水剂处理可以提高果园的土壤水分以及单果果实体积、果实含糖量。(3) 保水剂保水效果明显,对于不同的降雨年型都可以达到节水的目的。(4) 秸秆覆盖可以明显提高土壤水分和温度,提高果实的生长速率。更多还原

【Abstract】 It is the important problem of guaranteeing agricultural sustainable development of suburb of Beijing to develop the water-saving orchard and improve the effective rate of utilization of water. The application of technology is a important economizing on water and fighting a drought and increasing the production of technology and is developed in recent years rapidly that the conservation storage preserves soil moisture, main two parts of contents of research of this text: With the new-type products KeHan98 high-efficient to fight a drought water retaining agent material , to to is it protect water characteristic , between water retaining agent and foundation that interaction study of fertilizer to absorb water water retaining agent, to carrying on research in the effect of using the water retaining agent of orchard of suburb of Beijing.Adopt the straw to cover technology and carry on research to the suburb of Beijing. In order to achieve the goal of studying, the author has promoted the research of tight test, pass the finding:(l)The water retaining agent absorb water ability correlate with density of ion of the solution , pH value ,etc. in KeHan98 , propose when using at the same time , on land earthworm is it is it is it construct to gush out to adopt to propose , should water with ink with water retaining agent.(2)Different water retaining agent is it can improve soil moisture and simple fruit fruit volume , fruit candy content of orchard to deal with.(3)The water retaining agent protects water result obviously, can all achieve the goal of economizing on water to the type in different rainfall year.(4)The straw can obviously improve soil moisture and question to cover, raise the speed of growth of the fruit.更多还原