高粱因具有抗旱能力而著称。许多学者报道过灌溉能促进高梁生长,提高其籽粒及饲草产量。虽然在土壤水分适宜时,高粱能获得相当高的产量,但要获得最高的籽粒和饲草产量最适宜的土壤水分究竟是多少则尚未弄清楚。由于考虑到粒用高粱具有抗旱能力,上述诸学者的试验都是在土壤水分相当低的条件下进行 Sorghum is known for its drought tolerance. Many scholars have reported that irrigation can promote the growth of sorghum and increase its grain and forage yield. Although sorghum can achieve quite high yields when soil moisture is appropriate, it remains to be seen what is the most appropriate soil moisture to obtain the highest grain and forage yields. Due to the ability of grain sorghum to tolerate drought, the tests of these scholars have been carried out under relatively low soil moisture conditions