Ram Chandra Bhagat, Santosh Kumar Sahu, Ashok Pal and Awinash Kumar
Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.)
Abstract: A field experiment was conducted at the Research Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during Rabi, season 2008-2009 to study the effect of crop residues and the green manure incorporation in wheat on growth, nutrient uptake and yield under rice based cropping system. The seven treatments namely no straw and 0kg RDF (T 1), no straw + RDF (T2), straw burn+RDF(T3), straw incorporated +RDF (T4), straw incorporated with 25% N+ RDF*(T5), straw incorporated with 5t GM/ha+RDF* (T6), straw incorporated with microbial culture + RDF (T7) were replicated four times in RBD. The NPK uptake in seed and stover significantly increase by crop residue management compared does control. The higher nitrogen (52.79 kg ha-1) and phosphorus uptake (15.23 kg ha-1) in seed was found with straw burn+RDF (T3), but, potassium uptake in seed highest (2.27 kg/ha) was found with straw incorporated with 5t GM/ha+RDF*(T6) while potassium uptake was found with straw incorporated along with 25% N as starter dose and highest phosphorus uptake was observed with straw incorporated along with microbial culture. The yield parameter affected by different treatment. The highest no. of tiller and highest spike was observed with straw bunt which was significant to control but non-significant to all other treatment. The higher seed and stove yield was found with straw burnt and straw incorporated along with 25% N as starter dose. The higher seed yield (26 q/ha) was recorded with straw burnt+RDF (T3) which was also similar to straw incorporated
+RDF (T4), straw incorporated with 25% N+RDF* (T5), Straw incorporated with 5t GM/ha+RDF*(T6) and straw
incorporated with microbial culture +RDF (T7) but significantly deference between no straw and 0 kg RDF (T1) and no straw
+RDF (T2). The lowest seed yield (14q/ha) was recorded in no straw and 0 kg RDF (T1). The highest stover yield (54.5 q/ha)
was found in straw incorporated with25%N+RDF*(T5) and lowest (35.75 q/ha) was with no straw and 0 kg RDF (T1).
Significantly the highest harvest index (34.90%) was obtained with straw burnt+RDF (T3). Whereas, the lowest harvest
index (28.14%) was obtained with no straw and 0 kg RDF (T1).
Keyword: crop residues, green manure and wheat yield
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