Sorghum cultivation: What is the role of water in various stages of sorghum growth?
What is the role of water in all stages of sorghum growth? Please introduce the water requirements of sorghum during the growing period as follows: when the soil water content is 15% to 20%, it can be sown. The water demand at the seedling stage accounts for 8% to 15% of the total water demand during the whole growth period. When the soil water content is 50% ~ 65% of the maximum field water holding capacity, it is the most suitable. Proper control of soil moisture at seedling stage is beneficial to the rational establishment of vegetative organs. The water requirement at jointing and booting stage accounts for 33% and 35% of the total water requirement during the whole growth period. The water requirement at heading and flowering stage accounts for 22%-32% of the total water requirement during the whole growth period. At this time, water shortage increases the number of sterile flowers, reduces the vitality of pollen and stigma, and leads to poor fertilization. Too much water at heading stage will often lead to the degradation of some branches and spikelets under the spike. The sensitivity of sorghum to water is in the following order: jointing and booting stage, heading stage, flowering stage, filling and mature stage. Once drought occurs in the filling stage, it will lead to the decrease of grain yield. In the later stage of grain filling, too much soil moisture will cause greedy green late ripening, and even suffer frost damage. Click to get more sorghum planting technology click to get more grain planting technology
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Sorghum planting: how to control sorghum top rot?
How to control the top rot of sorghum? Please introduce the control methods of sorghum top rot, which mainly occurs from seedling stage to adult plant stage. the main symptoms of top rot are as follows: seedling stage, top leaves of adult plants show chlorosis, deformity, wrinkle or distortion, and there are many transverse knife-cut marks on the edge. some are tested or two along the main vein.
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Sorghum planting: what is sorghum purple spot disease?
What is sorghum purple spot? How to prevent it? Sorghum purple spot mainly occurs in the middle and late stages of sorghum growth, damaging leaves and leaf sheaths. Scabs purplish red, oval or oblong, mostly limited to parallel veins, sometimes pale purple halo, gray mold layer on the back of the leaf spot, leaf sheath...
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