RESPONSE OF MUSTARD (Brassica juncea L.) TO IRRIGATION BASED ON IW/CPE RATIO UNDER VARYING LEVELS OF NITROGEN AND PHOSPHORUS

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dc.contributor.advisorUpadhyay, P. N.
dc.contributor.authorPatel, Prabhatsinha Mansukhabhai
dc.date.accessioned2018-05-21T06:25:52Z
dc.date.available2018-05-21T06:25:52Z
dc.date.issued1991
dc.description.abstractA field experiment was conducted on loamy sandy soil of Agronomy Farm, Gujarat Agricultural University, Anand Gampue, Anand during the rabi season of the year 1989-90 to study the response of mustard (Brassica juncea Lo) to irrigation scheduling based on IW/CPE ratio under varying levels of nitrogen and phosphorus. Eighteen treatments comprising of all possible combinations of three levels of irrigation viz., 50 mm irrigation based on IW/CPE ratio of 0.4 il^), 0,6 (I2) and 0,8 (I3); three levels of nitrogen viz . 25 (N1), 50 (N2) and 75 (N3) kg/ha and two levels of phosphorus viz ., 50(P) and 75 (P-) kg/ha were tried in: split plot design with three ceplicatlons. Different levels of IW/CPE ratio constituted . the main plot treatments and levels of nitrogen as well as phosphorus were put up in sub«plot treatments. The results indicated that the primary branches/plant, number of seeds/pod, length of pod and stover yield of mustard did not significantly influenced due to different IW/CPS ratios . Irrigation at IW/CPE ratios of 0.6 and 0.8 were equally effective in producing number of pods/plant, seed weight/plant as well as seed yield of mustard, but significantly superior over IW/CPE ratio of 0.4. IW/CPE ratios of 0.6 and 0.8 gave 15.04 and 15.94 per cent higher seed yield, respectively over IW/CPE ratio of 0.4 (1794 kg/ha). Maximum net profit (Rs.9102/ha) was obtained with IV//CPE ratio of 0,6 and was turned out to ,be optimum. Fertilizing mustard with 75 kg N/ha recorded appreciably higher plant height, number of pods/plants seed weight/plant similarly seed and stover yields recorded with this level of nitrogen were significantly superior over lower levels of nitrogen. The seed yield (2217 kg/ha) recorded with 75 kg N/ha was 34.75 and 6.79 per cent higher over 25 and 50 kg N/ha, respectively. This level of nitrogen also recorded the maximum net profit of Rs, 9824/ha and was found to be optimum. Different levels of phosphorus viz . , 50 and 75 kg P2O5/ha were failed to show their significant influence on all the growth as well as yield parameters under study and both levels were remain equally effective. Net profit obtained were also remained almost equal, with both the levels of P2O5, Scheduling irrigation at IW/CPE ratio of 0.6 and 0.8 were at par in producing oil yield (kg/ha) as well as uptake of N, P and K, but significantly superior over IW/CPS ratio of 0.4. IW/CPE ratios of 0.6 and 0.8 gave 15,13 and 16.69 per cent higher oil yield, respectively over IW/GPE ratio 0.4 (707 kg/ha), however, oil content (%) was not affected significantly due to different levels of irrigation . Water use efficiency decreased with each increase IV in IW/CPE ratio , IW/CPE ratio of 0.4 increased significantly the water use efficiency (11,98 kg secs/ha mm) over higher levels. Application of 75 kg N/ha gave significantly the highest oil yield (852 kg/ha) of mustard, but was at par with 50 kg N/ha. Oil content {'A) was found to be decreased with increase in level, of nitrogen whereas, uptake of U, P and K as well as water use efficiency was observed to be increased with the respective increase in level of nitrogen. Application of 7 5 kg N/ha recorded the highest water use efficiency of 11.07 kg seed/ha ram than the lower levels of nitrogen. Different levels of phosphorus did not make significant variation in oil content (%)/ oil yield (kg/ha), uptake of N, P and K (kg/ha) as well as water use efficiency {%) of mustard. Based on the results from one year experimentation, it seems quite logical to indicate that potential production and profit from mustard crop can be secured by scheduling irrigation based on IW/CPS ratio of 0,6 (Total 4 irrigations) and fertilizing the crop with 75 kg N/ha as well as 50 kg P2O5/ha on loamy sand soil of charotar tract.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810046852
dc.keywordsRESPONSE OF MUSTARD (Brassica juncea L.), IRRIGATION BASED ON IW/CPE RATIO, VARYING LEVELS OF NITROGEN AND PHOSPHORUSen_US
dc.language.isoenen_US
dc.publisherAAU, Ananden_US
dc.research.problemRESPONSE OF MUSTARD (Brassica juncea L.) TO IRRIGATION BASED ON IW/CPE RATIO UNDER VARYING LEVELS OF NITROGEN AND PHOSPHORUSen_US
dc.subAgronomyen_US
dc.subjectAGRONOMY, AGRICULTUREen_US
dc.subjectA STUDYen_US
dc.themeRESPONSE OF MUSTARD (Brassica juncea L.) TO IRRIGATION BASED ON IW/CPE RATIOen_US
dc.these.typeM.Scen_US
dc.titleRESPONSE OF MUSTARD (Brassica juncea L.) TO IRRIGATION BASED ON IW/CPE RATIO UNDER VARYING LEVELS OF NITROGEN AND PHOSPHORUSen_US
dc.typeThesisen_US
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