西葫芦要做到四季无公害生产,并保证周年供应,必须要考虑市场的需求,结合各地生产形式和市场形势以及西葫芦对环境条件的要求等,选择适宜的栽培茬口,以达到高产、高效的目的。目前生产上常见茬口有以下几种。早春茬这一茬在多种保护地设施内均可进行,如日光温室、 Zucchini to achieve pollution-free production of the four seasons, and to ensure the annual supply, we must consider the needs of the market, with various forms of production and market conditions and the environmental requirements of the zucchini, select suitable cultivation stubble, in order to achieve high yield and high efficiency . At present, there are the following kinds of crop stubble. Early spring stubble in a variety of protected facilities can be carried out, such as solar greenhouse,