Ecology, Environment and Conservation Paper

Vol.15, Issue 02, 2009; Page No.(327-335)

YIELD, QUALITY AND NUTRIENTS UPTAKE OF SOYBEAN AS INFLU- ENCED BY SOWING DATES AND PLANTING TECHNIQUES UNDER LEGUME BASED CROPPING SYSTEM

A.B. Kamble, H.M.Patir and C.B. Gaikwad

Abstract

The important growth attributes viz., plant height, number of branches per plant, number of compound leaves, leaf area per plant, dry matter accumulation per plant, and root nodules per plant were significantly increased with normal sowing date (25' MW). However, number of compound leaves and dry matter accumulation per plant and root nodules per plant were at par with early sowing date (23' MW) during both the years of experimentation. Similarly, important yield contributing characters viz., number of pods, number of grains, grain weight per plant and test weight were significantly higher with normal sowing date (25" MW) as compared to late sowing date (27". MW). However, all these yield attributes were at par with early sowing date (23'd MW) during second year of investigation. The normal sowing date registered significantly higher grain, straw and biological yield than late sowing date but it was at par with early sowing date during all the two years of experimentation and on pooled mean basis. The protein content in soybean grain at harvest was increased significantly with normal sowing date (25' MW) as compared to late sowing date (27" MW), however, it was at par with early (23-.= MW) sowing date during both the years.The total uptake of N P K was significantly higher with normal sowing date (25 MW) as compared to early (23 MW) and late sowing dates (27"MVV) during both the years of investigation. The important growth attributes viz., plant height, number of branches per plant; number of compound leaves, leaf area, and dry matter accumulation per plant were not influenced significantly due CO different cropping sequences during both the years. The important yield attributes viz., number of pods, number of grains and grain weight per plant and 100 grain weight were significantly increased with soybean-wheat cropping sequence during all the two years except number of pods and grain weight per plant during second year of investigation. The grain, straw and biological yield of soybean was not influenced significantly by different cropping sequences during both the years and on pooled mean basis. The uptake of NPK was increased significantly with soybean-wheat cropping sequence during both the years. The protein and oil content in soybean grain was not influenced significantly due to different cropping sequences during both the years except protein content during second year of investigation. Important growth attributes of soybean viz., number of branches per plant, leaf area, dry matter accumulation per plant, showed significant improvement with alternate row skipped planting technique than rest of the planting techniques during both the years. The important yield components of soybean viz., number of pods, number of grains, grain weight per plant and hundred seed weight were significantly increased with alternate row skipped planting technique than conventional and one row skipped after every two rows planting techniques during both the years. The grain, straw and biological yield of soybean was significantly higher with conventional planting technique during both the years the alternate row skipped planting technique registered significantly higher oil content than conventional and one row skipped after every two rows planting techniques. However, protein content in soybean grain was remained unchanged due to different planting techniques during both the years.The total uptake of N P K was significantly higher with conventional planting technique than rest of the planting techniques during both the years.

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