为充分发挥土壤增产潜力,利用光能资源,以提高单位面积农作物产量,在76年麦田套玉米试验初获成功的基础上,为进一步探索麦田套玉米方式方法和适宜品种等问题,77年进行了麦田套玉米播种方式、玉米播种期、玉米品种观察等试验,结果如下。一、试验方法 (一)套种方式试验方法:玉米于11/5播种,品种除宽垄宽幅为宁单3号,其余为宁单1号。 1.小麦三行宽垄宽幅播种玉米,采取125厘米双行条播(窄行20厘米)。小麦播种幅宽85厘米,幅距40厘米。在85厘米幅内用铁锹开沟,然后手撒种子,共三沟(铁锨宽23厘米)。在40厘米幅距内用小条播机播玉米二行(窄行距20厘米)。小麦收后玉米为105厘米和20厘米宽窄行。试验面积2.88亩。 2.小麦机播6行靠套玉米采取75厘米单行条播。将12行条播机改为9厘米窄行六行靠, In order to give full play to the potentiality of soil increase and make use of the light energy resources to improve the yield per unit area of ​​crops, based on the success of the experiment on maize corn set in 76 years, in order to further explore the methods and suitable varieties of maize, A set of maize sets of corn sowing methods, corn sowing time, maize varieties observed and other tests, the results are as follows. First, the test method (a) Intercropping test methods: corn in 11/5 sowing, in addition to wide variety ridge width Ning Ning No. 3, the rest Ningning No. 1. 1. Three rows of wide-ridge wheat sowing corn, to 125 cm double row sowing (narrow row 20 cm). Wheat planting width 85 cm, width 40 cm. Open the shovel with a width of 85 cm, then spread the seeds in hand for a total of three furrows (23 cm wide). Sow the maize two lines (20 cm narrow) in a 40 cm wide pitch. The corn crop is 105 cm wide and 20 cm wide. The test area of ​​2.88 acres. 2. Wheat machine sowing six rows of maize take 75 cm single row broadcast. The 12-line drill to 9 cm narrow row of six lines by,