First, choose the appropriate species to prevent cross-regional planting
According to local conditions, it is suitable to select good maize varieties that have strong drought resistance, high yield and stable yield, great potential for yield increase, appropriate ripening period, and national or provincial certification. It is necessary to put an end to the cultivation in the remote areas, avoid breeds with long growth periods, ensure safe maturity, and increase the yield of corn and the quality of grain products.
Second, do a good job in soil fertigation, lay the foundation for sowing
In view of the fact that the soil moisture content is insufficient, the soil anti-drought effect can be improved by agro-ecological measures such as deep-soiled soil preparation, “small ridges and large ridges,†and conservation tillage. For places where there is heavy drought and no water source conditions, the soil should be used as little as possible and the original ridge card type should be adopted to reduce the evaporation of soil moisture.
According to different soil fertility, science and rational use of fertilizers, organic fertilizer and inorganic fertilizer, nitrogen and phosphorus potassium and micro-fertilizer, base fertilizer and top-dressing, promote "re-use of base fertilizer, nitrogen fertilizer chase" to prevent "a bombardment" . Where conditions permit, chemical fertilizers can be used to deepen the ditch, and it is advisable not to spread on the surface and pay attention to segregation of seed fertilizers to prevent burning seedlings.
Third, suitable for timely sowing, improve the quality of sowing
From late April to early May, when the 5 cm ground temperature stably passes 10°C, it can be planted. Sowing time is too early to easily lead to low-temperature rotten species and soil-borne diseases such as underground pests and head smut, and sowing time will affect plant normal Growth and grain filling and dehydration in the later period. For the autumn land preparation plot, we must seize the spring return season to timely suppress the loquat seeding, minimize the use of soil as far as possible to protect the flood season; for the unsettled plots in the fall, we should adopt the spring top mulch extermination, the original ridge cropping, timely grab the early sowing .
Fourth, promote drought-resistant technology and strive to broadcast a full range of seedlings
According to the production basis and resource conditions, we should promote the use of drought-resistant and water-saving techniques that are mature, practical, simple and efficient according to local conditions.
First, sit water technology. Give full play to the advantages of low cost, easy operation, simple structure, flexible and unrestrained terrain, etc., as well as the use of walking water injection machine and other agricultural machinery to complete the ditching, water injection, spot seeding, fertilization, and earth cover And suppress operations to ensure Miao Qi Miao uniform seedlings.
The second is drip irrigation technology under the membrane. The drip irrigation technology under the membrane is strongly promoted in places where conditions permit. This technology is currently the most water-saving and energy-saving new irrigation technology. It not only uses irrigation water intensively, but also effectively prevents surface water evaporation, deep water leakage and surface runoff, and improves water and fertilizer utilization. Efficiency, to meet the water temperature conditions required for corn growth and development.
The third is to warm up and protect the mulching film. Corn mulching has functions of increasing temperature and moisture, gathering rain, resisting drought, and improving quality of herbicides. It mulches membranes, accumulates natural rainfall, reduces water evaporation, turns effective precipitation into effective precipitation, improves precipitation utilization, and enhances drought resistance of corn. ability.
V. Implement reasonable and dense planting to build suitable groups
According to species characteristics and ecological conditions in various regions, soil fertility, fertilization level and management level, etc. Generally, the soil with high fertility and dense planting varieties has a suitable density of more than 4500 per acre. The soil with lower soil fertility and a little less denseness of the varieties has an appropriate density of 4000-4500 plants per acre. For non-single grain sown plots, seedlings should be seeded as early as possible, generally 3 leaf period seedlings, 4-5 leaf stage seedlings, in case of lack of seedlings can stay close to the same line in the same line of peers or neighbors, to ensure the appropriate basic seedlings per acre .
Walk Through Metal Detector ,Portable Walk Through Metal Detector,Walk In Metal Detector,Walkthrough Detector
Shenzhen Unisec Technology Co.,ltd , https://www.uniqscansecurity.com