CornAs one of the important food crops in China, there is a controversy between dense planting and high yield of dense planting and high yield of sparse planting in the selection of planting density. There is no consensus on this issue in theory or practice. Some people believe that proper dense planting can improve photosynthesis efficiency and increase yield; There are also people who have achieved high yields through sparse planting. So,Summer cornShould it be densely planted or sparsely planted? This paper will analyze from different perspectives to help decision-makers make comprehensive judgments based on factors such as planting conditions, variety characteristics, and soil fertility.
Dense plantingCornIt can effectively improve the photosynthetic efficiency and create more photosynthetic products. Due to dense planting can be increasedCornwithin the unit areaLeaf area index, which in turn improves the utilization rate of light energy. However, competition between plants needs to be properly controlled, including proper fertilizer and water management, to ensure an increase in the number of ears per mu and grains, and ultimately to achieve the goal of increasing yield. According to experimental studies, with the increase of density, the yield will also increase correspondingly, but when the density exceeds a certain level, the yield begins to decrease, showing a parabolic shape, and the density corresponding to the peak yield is the optimal density. Exceeding or decreasing this density will have a detrimental effect on yield.
In practice, proper dense plantingCornThis allows plants to compete with each other, promotes robust plant growth, and increases yields. At the same time, dense planting can also reduce the occurrence of pests and diseases, reducing the risk of lodging. Therefore, under certain management level and suitable natural conditions, dense planting can obtain higher yields.
Sparse plantingCornIt is also possible to achieve high yields. Proper thinning can make the stalks thicker, improve the ventilation and light conditions in the field, help reduce the occurrence of pests and diseases, and also reduce the risk of lodging. In addition, sparse planting allows the crop to be more fully developed, with large ears and full grains to achieve high yields.
The advantage of sparse planting is also that it is more adaptable to the characteristics of the variety. DifferentCornVarieties have different requirements for planting density. For some varieties suitable for sparse planting, choosing sparse planting can give better play to the characteristics of the varieties and improve the yield. Therefore, in areas with average soil fertility or low levels of management, appropriate thinning can also be a viable option.
When deciding on planting density, a number of factors should be taken into account. The first is the characteristics of the variety, different varieties have different adaptability to planting density, and must be planted according to the recommended density on the variety introduction. The second is soil fertility, the area with good soil fertility can increase the density appropriately, while the area with average soil fertility should moderately reduce the density.
At the same time, the management level is also a key factor, and the high level of management can make the plants grow vigorously under the condition of dense planting, so as to choose dense planting; On the contrary, if the management level is average, it is more suitable to choose sparse planting. Finally, natural conditions can also influence the selection of planting densities. For areas with suitable temperature and normal precipitation, the upper planting density can be selected; For areas with poor climatic conditions, the lower planting density is suitable. In the selectionCornWhen planting density, it is necessary to consider the specific variety characteristics, soil fertility, management level and natural conditions and other factors, and flexibly adjust the planting density.
InSummer cornThere is no absolute answer between dense planting and sparse planting and high yield. Based on testing and practical experience, high yields can be achieved with the right amount of sparse and dense planting. In specific planting, it is necessary to consider a variety of factors according to various factors such as variety characteristics, soil fertility, management level and natural conditions. At the same time, personal experience and practice cannot be ignored. Therefore, in the selection of planting density, it is necessary to adjust according to the specific situation in order to expect the best yield. Only by scientifically and rationally selecting the planting density can it be achievedSummer cornHigh yield target.