What crops are interplanted in the corn field?

Corn-soybean strip compound planting;

First, by popularizing new compact corn varieties and new width-row ratio design, not only the corn varieties are updated, but also the planting density of corn is increased;

Secondly, it increases the field permeability and reduces the occurrence probability of pests and diseases;

Thirdly, the combination of corn and soybean improves the utilization rate of cultivated land, realizes the combination of planting and breeding, and reduces the expenditure of farmers; Fourthly, the unified planting specifications laid the foundation for the later mechanized harvesting.

Extended data:

1, select varieties.

The maize variety is compact or semi-compact with short plant (250 cm) and moderate growth period. Soybean varieties are middle-late maturity soybean varieties, which are resistant to shading and lodging.

2, timely sowing

The sowing date of corn is concentrated in early March, which is 5 ~ 7 days earlier than the local large-scale sowing. Soybean is sown from the end of May to the beginning of June.

3. Standardized planting

The arrangement ratio is1.6m: 0.4m; Two rows of soybeans are planted in wide rows of corn, with a row spacing of 40 cm, and the spacing between soybean rows and corn rows is 60 cm. The number of effective plants per mu of corn should reach 3200 (semi-compact) to 3800 (compact), and the number of effective plants per mu of soybean should reach 7500 to 9000.

4. Scientific fertilization

Pure n as base fertilizer? 6 kg, P2O5? Seven kilos, K2O? 7.5 kg, topdressing at jointing stage is pure n? 4 kg, pure n at the big bell mouth stage? 10 kg, K2O? 7.5 kilograms. P2O5 as the base fertilizer of soybean? Seven kilos, K2O? 2.5 kilograms.

Step 5 control the king's field

For semi-compact corn with vigorous growth, when the leaves spread at 10 ~ 12, add 25 ~ 30g of 40% corn-strengthening water agent and15 ~ 20kg of water to the upper leaves of corn and spray evenly. For growing soybeans, 24-48g of 5% uniconazole wettable powder and 40-50kg of water are used per mu, and the stems and leaves are evenly sprayed at the branching stage or the initial flowering stage.

6. Weed control and pest control

Diseases, pests and weeds of corn and soybean shall be carried out according to local control techniques, with emphasis on strengthening the control of underground pests, aphids, red spiders, corn borers, bean stalk black miner, root rot, stem borers and soybean moths.

References:

Agricultural net-maize-soybean strip compound planting technology