The benefit of interplanting garlic ginger is good.

In the history of Zhucheng City, Shandong Province, single cropping was mostly used to cultivate ginger, and the experiment and demonstration of interplanting garlic ginger began in the 1980s, and good economic benefits were obtained. However, due to the lack of matching intercropping techniques, such as not leaving interplanting lines, the pieces of ginger interplanted become smaller, and some of them can not meet the export standards, which affects the enthusiasm of ginger farmers. In order to explore the cultivation techniques of garlic and ginger interplanting, the author carried out many experiments, investigation and analysis in Chengguan Town and Lvbiao Township from 1992 to 1995, summed up the matching techniques suitable for local garlic and ginger interplanting, and obtained a bumper harvest of garlic and ginger after popularization. now introduced as follows.

Key points of interplanting cultivation techniques of garlic and ginger

Apply sufficient basal fertilizer, select the land with fertile medium soil, drainage and irrigation conditions and no ginger for 3 years, and apply soil miscellaneous fertilizer 5000kg, superphosphate 50kg, deep ploughing 30cm, rake fine leveling, east-west direction and wide 120cm, in which the border ridge width 20cm, border surface 100cm, strip application of ternary compound fertilizer 100kg or bean cake 50kg.

Select improved varieties, choose Cangshan garlic, which is big and disease-free, and eliminate petal and rotten cloves when dealing with autumn garlic; when interplanting ginger in spring, choose ginger lumps that are disease-free, non-rotten, dry-shrunk and non-damaged. strictly eliminate thin, fleshy browning or waterlogged and soft ginger. Before and after Ching Ming Festival, choose a windless sunny day, put the selected ginger monolayer on the leeward and sunny dry ground, air from 9:00 to 3:00 in the morning, and return indoors after 3: 00. Store it for 2 days (days) and then dry it again and again for 3 times, and the whole process is 10 days and 15 days. Then use hot Kang to promote sprouting, according to the number of ginger seeds, use bricks or adobe to build a 50cm high wall on the Kang, spread 10cm thick dry straw, and then spread a layer of newspaper, and place the ginger pieces tightly on the hot Kang, usually 5 layers, and then heat them. The early temperature is kept at 20 ℃. After 15 days, the ginger buds begin to germinate, the temperature rises to 25 ℃, and when the ginger sprouts grow to 1cm, the temperature drops to 22 ℃. Keep the relative humidity 70%-80%, so that the ginger buds can be fat and not grow in vain.

Sowing at the right time, reasonable close planting in the middle of October, sowing garlic seeds with plastic film mulching, east-west direction, border width 120cm, species 6 rows, plant spacing 10 cm 667 m2 sowing 37000 plants. Three rows of garlic were planted on the border, leaving a 30cm wide interplanting row (figure 1). Garlic sowing can be perforated after plastic film mulching, or it can be ditched and sown with plastic film after sowing. Ginger was planted in artificial holes from April 25th to May 5th, row spacing 60cm, plant spacing 20cm, per 667m25500 plant, try to keep the depth and plant spacing consistent for management.

Under the condition of sufficient basal fertilizer, garlic stalk was harvested next year, and urea 10kg per 667m2 was harvested in the coming year. When ginger grew to two branches, compound fertilizer 15~20kg was applied, and compound fertilizer 35~50kg was applied in prosperous period. To meet the need for fertilizer for ginger.

Strengthen watering and drainage management ginger needs a lot of water in the later growth period, and the ground should be kept wet but not dry. Ginger and garlic are afraid of drought and waterlogging, so we should pay attention to drainage to prevent rotten ginger. In addition, it is necessary to cultivate the soil in stages and cut weeds by ploughing.

Pay attention to the prevention and control of diseases and insect pests garlic spray 90% trichlorfon 800 times liquid after turning green in spring, control garlic maggots, spray again before "Grain in Beard" to control ginger borer. For the prevention and control of ginger blast, under the premise of more than 3 years of crop rotation, good varieties were selected, diseased plants were found, eradicated in time, and disinfected with quicklime in the disease hole. It was found that ginger borer (heart borer) could be sprayed with 50% insecticidal borer emulsion 500-600 times or 80% dichlorvos EC 800 times, or 1500 times of dichlorvos.

Timely harvest garlic should be harvested in early June within 17 days (days) after garlic stalk harvest. Be careful not to damage the root system of ginger. Ginger will be harvested before "Frosts Descent" in mid-October. 3 days before harvest, first pour water once to make the soil moist, then gently dig out the ginger with a ginger head, then cut off the aboveground stem from the 2cm at the base of the stem, remove the fleshy root with a knife, put it carefully and put it into the cellar in time, planing on the same day, the ginger pieces can not spend the night in the open air at the end of the day, so as to prevent the ginger pieces from cold injury.

Interplanting garlic and ginger to increase yield and income

Garlic and ginger intercropping made full use of land, light, temperature, water, fertilizer and other conditions, using winter idle ginger field to grow garlic, changing one year as two crops a year, the multiple cropping index was increased, and the yield and benefit were obviously increased. Generally, the yield of ginger per 667m2 is 2300 kg, and the yield of intercropping ginger is 2250kg, garlic 1025kg, garlic stalk 700kg. The net income of interplanting was 3200 yuan higher than that of monoculture.

In addition, ginger is a shade-tolerant plant, not tolerant to strong light, and needs medium-intensity light conditions in the early growth stage. Interplanting garlic ginger and shading with garlic seedlings can save materials. At the same time, garlic can volatilize a bactericidal substance, which can effectively prevent and reduce the occurrence of ginger blast. According to the investigation in Chengguan town, the incidence of interplanting ginger was significantly lower than that of single cropping ginger.