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夏番茄地套种夏玉米,是江苏铜山县为解决菜粮争地,为夏番茄提供遮光降温条件的一种套种方式。具有改善伏期蔬菜生长环境,保菜增粮,提高效益的作用。(一)合理配比和茬口安排夏番茄套夏玉米的技术关键是选择夏玉米的合适播种期和种植密度。具体做法是:夏番茄大小行栽培,大行70厘米、小行50厘米,株距40厘米,采用30厘米高的小高畦栽培,4月下旬育苗,9月初定植于大田。夏玉米5月下旬播种于夏番茄大行中间,行距120厘米,株距25厘米,每亩种2200—2300株,一般于8月中、下旬开始收采鲜玉米上市。(二)栽培技术要点:1.番茄:(1)选用中晚熟抗病大果型品种,如苏杭7号。(2)培育壮苗是高产关键,一般要求苗令2个月左右,带大蕾为好。搞好营养钵育苗,防蚜防病。(3)抓好田间管理,重点抓好肥水管理、植株调整、病虫害防治等。在施足基肥的基础上适时追肥,第一层果长到蛋黄大小时重施膨果肥(每亩穴施氮
Summer tomato interplanting summer corn, Tongshan County, Jiangsu Province is to solve the dispute over food and die, summer shade tomato to provide a means of intercropping. With the improvement of the environment of vegetables growing season, increase food security, improve the effectiveness of the role. (A) a reasonable ratio and crop arrangements Summer tomato summer maize technology is the key to select the appropriate sowing date and planting density of summer maize. Specific practices are: summer tomato size line cultivation, large line 70 cm, 50 cm small line, plant spacing 40 cm, using 30 cm high small highland cultivation, breeding in late April, early September colonization in the field. Summer maize in late May sow in the middle of summer tomato line, row spacing 120 cm, spacing 25 cm, 2200-2300 acres of each species, usually in mid-August, late start harvesting fresh corn market. (B) the main points of cultivation techniques: 1. Tomato: (1) selection of large varieties of late-maturing disease resistance, such as Suzhou-Hangzhou 7. (2) nurturing strong seedlings is the key to high yield, generally require Miao Ling 2 months or so, with big bud as well. Make a good nutrition bowl nursery, anti-aphids disease prevention. (3) Do a good job field management, focusing on fertilizer and water management, plant adjustment, pest control and so on. Shi Shi-based fertilizer in a timely manner based on the top dressing, the first layer of fruit grow to the length of the egg yolk re-applied bulking fertilizer (acre nitrogen