Interactive Effect of Conservation Tillage, Potassium and Magnesium Sulphate Fertilization on Dry Matter Production, Physiological and Yield Parameters, and Yield of Grain Cowpea

This study conducted in Kerala, evaluated the role of conservation tillage (zero (ZT), minimum (MT), and conventional (CT)) with five treatment combination potassium (12 kg/ha, 20 40 kg/ha) magnesium sulphate (60 kg/ha 80 on total DMP, physiology grain yield test variety Anaswara (cowpea). In pot culture study, application K: MgSO4, 10:80 resulted highest chlorophyll content. While higher a content was obtained levels 20:60 DMP recorded at 40:100 kg/ha. Different K MgSO4 nutrition positively influenced 100 seed weight yield, while there found no significant difference b content, days to flowering, grains/pod any treatments imposed. Higher values for were 40:60 field experiment, practices failed produce notable a, b, contents, a/b ratio, grains per pod weight. Early flowering (45 DAS) up 75 DAS under CT. ZT produced LAI, noted MT practice (734.5 kg/ha). Nutrient differences ratio. However, 40:80 (1.34 mg/g). K:MgSO4 applied yield. LAI + reported ratio (4.71). (806 interactions, registered (914.8 Overall, terms crop responded well