1990年靖江县长里乡镇西村,在115亩耕地上,推广麦一瓜/玉米一稻、三旱一水四熟制,获得粮食亩产961.1公斤,亩产值1421.77元,亩纯收入1233.77元。分别比麦稻两熟制增加粮食24.82%,产值增加84.6%,纯收入增至1.94倍。是增粮增饲增收的有效途径。四熟制的主要特点1.充分利用时间、空间、土地和温光资源,复种指数从2提高到4,有利单产和产值的提高。2.增加了饲料来源。3.有大量的藤叶秸秆还田,有利改良土壤,培肥地力,减少杂草,促进生态良性循环。4.玉米稳产,能补偿三麦或西瓜遭灾时的损失,确保全年增产增收。5.调剂农活和劳力,西瓜、玉米的收、管、种等作业能与“四夏”大忙错开农时,能充分利用劳力。主要栽培技术:一、元麦。选用早熟矮秆、抗病抗倒伏多穗高产 In 1990, Jingjiang county chief in the township of Nishimura, 115 acres of arable land to promote wheat a melon / corn a rice, three dry water and four cooked system, access to food yield 961.1 kg, mu production value of 1421.77 yuan, net income of 1233.77 yuan. Respectively, increased grain 24.82% than the double cropping of wheat, the output value increased 84.6%, net income increased to 1.94 times. It is an effective way to increase grain and increase incomes. The four main characteristics of cooked 1. Make full use of time, space, land and temperature light resources, multiple crop index increased from 2 to 4, favorable yields and output value increases. 2. Increase the source of feed. 3. A large number of vine leaves straw return, beneficial soil improvement, fertility, reduce weeds, and promote a virtuous circle of ecology. 4. Corn stable yield, can compensate for the loss of three wheat or watermelon disaster, to ensure full-year yield increase. 5. Adjusting agricultural work and labor, watermelon, corn harvest, management, planting and other operations with the “Four Summer” busy with the wrong way, can make full use of labor. The main cultivation techniques: First, wheat. Selection of precocious dwarf, resistant to lodging and more productive spike