利用棚（室）深冬番茄进行换头技 术是实现周年生产提高经济效益的有 效途径。据调查：在抚宁县采用这一技 术的棚（室）两茬番茄合计６６７ｍ２（亩） 可产１．２７万ｋｇ（公斤），产值２．３万 元。其主要栽培技术是： 一、培育壮苗 无病壮苗是番茄夺取高产优质的 根本保证 The use of shed (room) deep winter tomato replacement technology is an effective way to achieve annual production to improve economic efficiency. According to the survey: in Funing County using this technology shed (room) two stubble tomato total 667m2 (mu) can produce 12700 kg (kg), the output value of 23000 yuan. The main cultivation techniques are: First, nurturing seedlings disease-free seedlings is tomato to seize the fundamental guarantee of high yield and quality