In order to study the effects of space electric field on greenhouse cucumber powdery mildew and growth, powder bacteria were first inoculated by spreading spore suspension on different varieties of cucumber seedlings, which were then put in the space electric field or in the ordinary greenhouse to observe the incidence of powdery mildew and growth. The results showed that the space electric field could effectively control the occurrence of cucumber powdery mildew, reduce the disease index, with a comprehensive control of powdery mildew of more than 47% after 15d. The prevention and control effect was as follows: Deruite D19>Dongzhiguang 22-36>Xintaimici. Space electric field could also significantly improve plant height and stem diameter of cucumbers, such effectively enhancing the growth of cucumber plants.

水肥一体化技术是将灌溉与施肥融为一体同步控制的农业新技术,是一种新的水肥耦合模式.通常以微灌系统为载体,根据蔬菜需水需肥规律、土壤状况、气候条件将含有各种营养成分的液体肥料和灌溉水按比例混合后输送到蔬菜根部土壤供给植株吸收,适时适量满足蔬菜对水肥的需求,具有节水节肥、节省劳力、减轻病虫害,提高产品品质和产量的作用.五莲县许孟镇大力发展现代农业,普及强化节水技术,积极探索和完善水肥一体化技术在温室黄瓜上的应用,累计推广面积100 hm2,实现节约用水和高产高效双重目标,为农业的可持续发展打下坚实基础,取得了显著的社会、经济和生态效益.现将许孟镇越冬茬温室黄瓜水肥一体化关键栽培技术介绍如下.

传统生姜的种植多为露地栽培,一般5月上旬播种,霜降(10月24日左右)后收获,生育期170天左右,生育期较短限制了生姜产量的提高.保护地生姜秋延后高产栽培新技术是在露地栽培的基础上,改进种植技术,实行保护地栽培,分为大拱棚栽培、小拱棚栽培、地膜覆盖栽培,分别比露地栽培延长生育期60,30,15天,其667m2产量分别为4 391.8,3 778 3,3 197.8 kg,比露地栽培(2 546 kg)分别提高72.5％,48.4％,25.6％,667 m2收入分别增加4 429.9元、2 957.5元和1 564.3元,该技术获得山东省日照市科技进步二等奖,其主要栽培技术如下.

水肥一体化技术是将灌溉与施肥融为一体同步控制的农业新技术,是一种新的水肥耦合模式.通常以微灌系统为载体,根据蔬菜需水需肥规律、土壤状况、气候条件将含有各种营养成分的液体肥料和灌溉水按比例混合后输送到蔬菜根部土壤供给植株吸收,适时适量满足蔬菜对水肥的需求,具有节水节肥、节省劳力、减轻病虫害,提高品质和产量的作用.山东五莲县许孟镇大力发展现代农业,普及强化节水技术,积极探索和完善水肥一体化技术在温室黄瓜上的应用,累计推广面积100 hm2,实现节约用水和高产高效双重目标,为农业的可持续发展打下坚实基础,取得显著的社会、经济和生态效益.现将许孟镇越冬茬温室黄瓜水肥一体化关键栽培技术介绍如下.

We conducted an experiment to investigate the effect of double-rootstock grafting on yield,fruit quality and secondary metabolites of cucumber in sunny greenhouse. Cucumber scion "JinYou No. 35" and rootstocks "DTT-RS-39"(Cucurbita moschata) and Black Seed Squash(Cucurbita ficifolia) were used in this experiment. Fruit length,diameter,bleeding rate of vascular sap,free amino acids and flavonoids of double-rootstock grafted cucumber were significantly higher than those of self-rooted cucumber;and the tannin content was also increased. Fruit length,fruit diameter,bleeding rate of vascular sap and free amino acids of double-rootstock grafted cucumber were higher than those of conventionally grafted (single-rootstock) cucumber. However,compared to conventional grafted cucumber the tannin content of double-rootstock grafted cucumber was obviously lower,and no significant difference of flavonoids was observed between double-rootstock and conventionally grafted cucumbers. The double-rootstock grafting can significantly improve cucumber yield,quality and uniformity.

西葫芦（Cucurbita pepo L．）是城乡人民喜食的以食用嫩瓜为主的瓜类蔬菜，营养丰富，味道清香嫩脆，且西葫芦较耐低温，适合于保护地栽培，因此西葫芦种植面积日益增大。山东省五莲县许孟镇西葫芦栽培历史悠久，其栽培面积已达1333hm2。为实现西葫芦周年供应，均衡上市，近年来，该镇探索出一整套西葫芦早春栽培、越夏栽培和秋延迟栽培及越冬栽培新技术，对于解决蔬菜的淡季供应，丰富城乡居民的“菜篮子”工程起着重要的作用。现将西葫芦周年生产的栽培技术介绍如下：