Three-dimensional cultivation of summer corn, autumn kidney bean and summer garlic seedlings

First, the varieties with high yield and lodging resistance and flat leaves should be selected for the selection of improved summer corn. Such as Luyu No. 4; autumn kidney bean selection of heat-resistant and commercial Fengshou No. 1 and Qiukang No. 6; garlic selection of Jinxiang white garlic with high yield and disease resistance and short dormancy period. 2. 2-3 days before planting, soak the garlic with 1 mg / kg gibberellin for 12-24 hours to break dormancy and promote germination, then remove and place it for 1-2 days, dig out the stem disk under the garlic with a knife, and keep the garlic intact to facilitate sowing. Third, sowing at the right time, reasonable close planting of corn will be completed before June 15, and large and small rows shall be adopted for planting. Large row spacing of 100 cm, small row spacing of 30 cm, plant spacing of 20 cm to 25 cm, autumn kidney bean and summer corn sowed in the same hole, set seedlings as early as possible after emergence, and each left a strong seedling. In mid-late July, when the corn grew to the trumpet stage, the garlic was planted in a small bed 50 centimeters wide between the rows. The gap between the garlic was filled with loose garlic cloves and covered with fine sand 3 to 5 centimeters thick to maintain moisture. Fourth, strengthen field management 1. Intermediate ploughing and weeding: ploughing 2 or 3 times before the corn trumpet period to root out weeds. two。 Topdressing and watering: topdressing once in the small trumpet stage and big trumpet stage, respectively, topdressing 15 kg urea every 1 ha (1 mu); during the growth of garlic seedlings, pour small water in the border every 2-4 days to cool down, and ammonium bicarbonate is applied with water, 10 kg per 15 ha; after 2 crops of garlic seedlings, spray 15mg / kg gibberellin liquid in time to promote their regeneration, generally harvest about 3 crops. 3. Flower and pod protection of kidney bean: high temperature in summer will affect pollination, resulting in falling flowers and pods. Therefore, attention should be paid to watering and cooling and timely harvesting. It can also be sprayed with 500 mg / kg α-niacetic acid, which has obvious flower and pod protection effect.