A field experiment was conducted during <italic>Kharif</italic> season 2009 to study the response of hybrid pigeonpea to planting geometry and fertility levels. The results revealed that the hybrid pigeonpea ICPH-2671 recorded significantly higher grain yield (2.40 tha⁻¹) as compared to cv. Maruti (1.68 t ha⁻¹) and the magnitude of increase was 41.7 % higher. The yield parameters like grain weight plant⁻¹, number of pods plant⁻¹ and growth parameters like number of primary and secondary branches plant⁻¹, LAI and dry matter production and its distribution were higher with hybrid pigeonpea ICPH-2671 compared to variety Maruti. Significant differences were observed among the plant geometry and fertility levels and their interactions with respect to growth and yield parameters. The plant geometry of 90 cm x 45 cm recorded significantly higher grain yield (2.57 t ha⁻¹) as compared to closer geometry of 60 cm x 30 cm (2.19 t ha⁻¹). The fertility level of 50: 100 N, P kg ha⁻¹ resulted in significantly higher grain yield (2.57 t ha⁻¹) as compared to lower fertility level of 25:50 N, P Kg ha⁻¹ (2.23 t ha⁻¹).

An experiment was conducted to assess the effect of iron and zinc nutrition on growth attributes and yield of chickpea (Cicer arietinum L.) during 2014-15 at the Department of Agronomy, College of Agriculture, JAU, Junagadh. The results of experiment indicated that growth parameters viz., plant height, dry matter accumulation at 90 DAS and at harvest, branches per plant, number and dry weight of root nodules per plant increased significantly with the increase in iron levels up to 4.0 kg Fe ha -1 whereas significant response was obtained up to 6.0 kg Fe ha -1 in dry matter accumulation at 60 DAS. Significant improvement in yield viz., seed, stover and biological yields was observed with the increasing levels of iron up to 4.0 kg Fe ha -1 over control and 2.0 kg Fe ha -1 . Similarly zinc is also an essential plant nutrient for plant growth and yield. Zinc application had also positive effect on all growth attributes and yield parameters as per above mention are significantly increased with the levels of zinc up to 2.5 kg ha -1 .

A field experiment was undertaken to study the effect of weed management and sulphur nutrition on nutrient content and uptake by weeds and soybean during kharif 2009. The results revealed that application of two hoeing and weedings and imazethapyr 100 g/ha+ H&W at 40 DAS recorded maximum seed yield (1475 and 1395 kg/ha, respectively). Two H&W significantly reduced the weed growth and nutrient uptake by weeds, there by increased the nutrient (N, P and S) uptake by crop. Application of 40 kg S /ha significantly recorded the highest seed yield. This also increased N, P and S content and their uptake by soybean and weeds.Key words: Chlorimuron ethy1, Imazethapyr, Hoeing, Sulphur nutrition, Weed management, Weeding.Soybean [Glycine max (L.) Merrill] is a crop of multiple qualities as it is both a pulse and oilseed crop. It is third largest oilseed crop of India after rapeseed-mustard and groundnut. Inspite of its high yield potential (4.5 tonnes/ha) its productivity is much less in india (0.95 ton/ha) than the world average of 2.3 tonnes/ha (FAI, 2006). Being a Kharif season crop, it suffers from severe infestation of weeds and rob it of essential nutrients, space and moisture, causing substantial loss in yield (33-55 %) depending on the weed flora and density of weeds (Kewat, et al.2000). The effective and economical weed control may not be possible through mechanical means due to heavy and continuous rains in kharif. Hence, use of herbicides offers an alternate method to manage weeds in such situation. The sowing time for soybean in rainy seasons is very short and farmers give first preference to sow the crop rather than to use soil applied herbicides for weed control. Under such situation post-emergence herbicides remain the only viable option needs to be explored as an effective and economical method of weed control.It is well known fact that weeds through competition with crop deprive crops of limited essential recourses, prominent among which are nutrients. More over weeds grow faster than the crop plants and absorbed the nutrient earlier resulting into lack of nutrients in general and sulphur in particular for the growth of plants. Thus, control of weeds at appropriate time increase the nutrient use efficiency. Under such situations use of post-emergence herbicides in conjunction with sulphur nutrition needs to be explored as an effective and economical method for obtaining better yield of soybean.

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Application of eight irrigations (seedling, 6 leaf, knee-high, before tasseling, 50% tasseling, 50% silking, grain formation and grain filling stages) where no stress was occurred significantly increased dry matter distribution. Data related to dry matter partitioning in stem, leaves and cobs at 25, 50, 75 and at harvest stage of crop. In general, irrespective of the treatments, crop attained maximum leaf dry weight at flowering stage. This decreased progressively up to harvest stage. While, stem dry weight showed increasing trend up to tasseling and silking stage and than declined slightly towards harvest stage of the crop. Obviously, cobs dry weight increased linearly from flowering up to harvest stage.