Effect of Nutrient Management on Soil Health and Wheat (Triticum aestivum L.) Production in Degraded land of Chambal Ravine

摘要

A field experiment was conducted on a degraded ravine land to evaluate the influence of inorganic and organic sources of nutrients practices on soil health and crop performance of wheat of (Triticum aestivum L.). The crop cultivar MP-1203 of wheat wasgrown with 120:60:60 kg ha"1 (NPK) recommended dose of fertilizers under nutrient management practices viz., seven treatments Farmer Practices (T,), 100% RDF (T2), 150% RDF (T3), STCR Based NPK Application (T4), 50% RDF + 5 tone FYM + PSB+ all deficientMicro Nutrient (T5), 75% RDF + 2.5 ton FYM/ha + PSB + ZnS04 @ 25 kg ha"1 (T6), Organics Practices FYM @10 tone ha1 + PSB + Azotobactor (T7), in randomized block design, replicated three times. Soil reaction, organic carbon, electrical conductivity, BD,MWD, MC, straw and seed yield were analyzed during the study. It was observed that soil reaction pH -1:2.5 (8.48), electrical conductivity (0.37 dSm1) and organic carbon (0.19%), Bulk density (1.52 Mg M3), found significantly higher in the 150% RDF followed by 100% RDF and mean weight diameter (0.50 mm), moisture content (18.24 %), were found significantly higher in the 75% RDF + 2.5 ton FYM/ha + PSB + ZnS04@25 kg ha1 (T6) followed by 150% RDF and soil biological properties viz., Microbial Biomass Carbon (SMBC) (66.05 ugC g1), dehydrogenase activity (DHA) (59.46 ug g"1 TPF g"1 h1), and fluorescin diacitate (FDA) (11.24 xg g"1 h1) were found significantly higher in the Organics Practices FYM @10tone ha1+PSB+Azotobactor (T7) followed by 75% RDF +2 .5 ton FYM/ha + PSB + ZnS04@25 kg ha"1 (T6) and 150% RDF (T3),. Very poor microbial activities were observed in farmer practices. The straw yield (4454.27 kg ha1) and seed yield (3984.45 kg ha1) of wheat was found highest in 75% RDF+2.5 ton FYM/ha+ PSB+ ZnS04@25 kg ha"1 (T6) practices followed by 150% RDF and STCR Based NPK Application (T4), Thus, the study demonstrated that the 75% RDF + 2.5 ton FYM ha"1 + PSB+ ZnS04@25 kg ha"1 (T6) practice improved soil health and performance of wheat crop.