No abstract

An experiment was conducted in rabi season to study the weeds and yields of greengram as influenced by irrigation scheduling and weed management during 2018-19. Fifteen treatment combinations comprising three irrigation schedules viz., irrigations at flowering, irrigations at flowering and pod development and irrigations at branching, flowering and pod development stage; five weed management practices viz., Pendimethalin CS, Quizalofop-P-ethyl, Pendimethalin CS (PE) fb Quizalofop-P-ethyl (PoE), 2 HW at 20 and 40 DAS and unweeded check. were Echinochloa spp., Trianthema portulacastrum, Digera arvensis. Physalis minima, Convolvulus arvensis and Cynodon dactylon. were found as major weeds in experiment. The growth and yield attributes viz. plant height, number of branches/plant, dry matter accumulation, number of pods/plant, number of seeds/pod and 1000 seed weight were recorded significantly higher under Irrigations each at branching, flowering and pod development stage, ultimately produced higher seed and stover yield. Further, application of Pendimethalin CS 1 kg/ha significantly minimized the weed density and dry weight of weeds, resulted higher growth and yield of green gram crop. Whereas, weeds cause 58.8% yield losses under unweeded control. On the basis of interaction, it is inferred that irrigating the crop at branching, flowering and pod development and managed the weeds either through Pendimethalin CS 1.0 kg/ha (PE) or 2 HW at 20 and 40 DAS.

No abstract

Twenty treatment combinations comprising of four levels of fertilizer management and five levels of herbicide management were tested in a factorial RBD with four replications. It was concluded that for controlling broomrape effectively and securing maximum cured leaf yield of Bidi tobacco as well as economic returns with management through different fertilizers, an application of ammonium sulphate at 200 kg/ha along with irrigation should be carried out. With regard to management of broomrape, manual weeding of broomrape was found to be the best practice.

An experiment was conducted at Organic Farm, Navsari Agricultural University, Navsari to study the effect of different proportion of organics on productivity of pit planted sugarcane during three consecutive years of 2013, 2014 and 2015. The experiment was conducted at fixed plot site with 8 set of organics treatments and 1 inorganic treatment as control (250:125:125 kg NPK/ha) arranged outside the experimental plot, laid down in randomized block design replicated thrice. Significantly higher millable cane height, number of internodes/ millable cane and single millable cane weight were recorded when crop nourished with 50% RDN each of vermi compost and castor cake. Further, application of vermi compost (50% RDN) along with neem cake or castor cake (50% RDN) were found equally effective and recorded significantly higher millable cane and trash yields. In organics vs inorganic analysis, application of 100 per cent RDF through inorganic fertilizers recorded significantly higher values of growth and yield parameters and yields of sugarcane crop. For producing higher and profitable cane yield of sugarcane, the crop should be fertilized with 100% RDF (250:125:125 NPK kg/ha) under south Gujarat condition. Further, it is also inferred that for organic production of sugarcane crop, application of 50% RDN through vermi compost and remaining 50% RDN either through castor cake or neem cake was found remunerative.