How to determine the best harvest time of wheat?

How to determine the best harvest time of wheat? In what way can we determine that wheat is ripe for harvest? The best time for wheat harvest is the end of wax ripening, when the 1000-grain weight and yield of wheat are the highest. Harvesting too early or too late will lead to the decrease of 1000-grain weight and yield. At present, most of the wheat is harvested in the full ripening period, and the problem of late harvest should be paid attention to by the majority of farmers. The standard at the end of wax ripening is that the stems of the plants all turn yellow, the leaves turn yellow, the stems are still elastic, the grains are waxy, the moisture content is about 30%, the color is close to the inherent luster of this variety, and the force can be cut off by fingernails. According to the investigation, the 1000-grain weight of wheat harvested at the full ripening stage is generally 2.4 grams lower than that at the end of wax ripening, and the yield of wheat is reduced by 13,15kg per mu. Why does the harvest of wheat reduce its yield during the full ripening period? First, after the end of wax ripening, the stems and leaves of wheat have withered and yellow and no longer produce dry matter, so the grain has stopped filling, but the plant is still breathing, and the energy needed for respiration comes from the matter stored in the grain, which leads to nutrient reflux and the decrease of 1000-grain weight of wheat. Second, the overcast and rainy weather is often encountered in the late growth stage of wheat, which not only leaches the grain contents and reduces the 1000-grain weight, but also often causes grain germination or mildew, which seriously reduces the yield and quality of wheat. Third, at the end of wax ripening, the lower node of the spike is golden yellow and slightly greenish, so it is not easy to harvest. If the harvest is delayed, the plant becomes brittle due to excessive water loss, resulting in an increase in grain drop and spike loss and a decrease in wheat yield. in case of storm and hail, the yield loss will be more serious. Click to get more wheat planting technology click to get more grain planting technology