First, timely harvest  Timely harvesting is an important measure for high yielding of wheat. Wheat harvest should be mastered at the end of waxing. In this period, the grain weight is the highest and the yield is also the highest. At the end of the waxing period, the leaves of the plants are yellow, and the internodes are golden yellow. The first part of the ear is slightly green, and the seeds are waxy and can be cut by nails. For the lodging wheat field, the degree of lodging is lighter, and it can be harvested by the combine harvester; if the lodging is serious, it should be harvested by hand to make the grain return to the warehouse. After the wheat is harvested, it should be dried in time to prevent mildew and deterioration.
　　
The second is to rob the sowing  The core content of high-yield cultivation of summer maize is “one increase and four reformsâ€, that is, rationally increase the planting density, replant the dense-tolerant varieties, change the seeding to live broadcast, change the coarse fertilizer to formula fertilize, and change the artificial planting to mechanized operation. The summer harvest is carried out at the same time. After the wheat is harvested, the corn should be rushed immediately, highlighting an "early" word. Seeding should use fine sowing machinery, sowing, sowing, sowing, sowing depth 3-5 cm, to prevent uneven seeding. For plots that are not well-informed, it is necessary to timely pour the head water after sowing to ensure that the seedlings are fully planted. In the selection of varieties, it is necessary to select the varieties suitable for local cultivation, seed dressing or chemical dressing, and 1-2 days before planting to increase the seed emergence rate and disease resistance.
　　
The third is to do a good job in pre-emergence management  Before and after the emergence of corn, it is necessary to timely control the pests and diseases of the field weeds and corn rough disease, ground tigers and armyworms. During the three-leaf period, the seedlings in the five-leaf stage and the seedlings in the five-leaf stage should be adapted to the variety requirements. Generally, the dense and compact maize varieties should be kept at 4000-4700 plants / mu, and the large-ear-type varieties should be kept at 3200-3700 plants / mu. The planting density increased with the increase of the yield index. At the same time, nitrogen, phosphorus, potassium and other balanced fertilization should be done. According to the yield index and the ground force basis, the amount of fertilizer should be determined, and the application of phosphorus and potassium fertilizer and micro-fertilizer should be added. Lightly apply seedling fertilizer, apply heavy panicle fertilizer, and supplement the grain fertilizer. Advocate ditch or hole application, prohibiting the application.
Author: Zheng Fei  Source of information: Agricultural Bureau of Xingtang County, Hebei Province
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