scholarly journals Integrated crop management practices for maximizing grain yield of double-season rice crop

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Depeng Wang ◽  
Jianliang Huang ◽  
Lixiao Nie ◽  
Fei Wang ◽  
Xiaoxia Ling ◽  
...  
2019 ◽  
Vol 11 (1) ◽  
pp. 130-133
Author(s):  
M Sangeetha ◽  
N. Tamil Selvan ◽  
P.S. Shanmugam ◽  
M.A. Vennila

Frontline demonstration was taken up in farmers’ holdings of Dharmapuri district, Tamil Nadu, India during kharif 2015 to create awareness among the farmers and demonstrate the improved production technologies in finger millet. The integrated crop management practices including cultivation of drought tolerant and short duration finger millet variety ML 365, integrated nutrient management, integrated pest and disease management practices were demonstrated and compared with the existing farmers practice followed in Finger millet cultivation. Results showed that demonstration of finger millet variety ML 365 with integrated crop management practices recorded higher grain yield of 2100 kg/ha and farmers practice recorded lower yield of 1730 kg/ha. Adoption of integrated crop management practices increased the grain yield of finger millet to the tune of 21.7 per cent compared to farmers practice. Farmers earned higher net income of Rs.14244/ha through the demonstration and Rs.10018/ha with farmers practice. Besides, farmers realized higher benefit cost ratio (1.58) through the demonstration compared to farmers practice (1.46). Thus, the frontline demonstration of improved variety with crop management practices increased the grain yield and net income of the farmers growing finger millet under rainfed condition. In the present study, potential of the improved variety and technologies were demonstrated systematically and scientifically in the farmers field along with farmers practice for further adoption by farming community in large scale.


2013 ◽  
Vol 11 (2) ◽  
pp. 65 ◽  
Author(s):  
I.P. Wardana ◽  
A. Gania ◽  
S. Abdulrachman ◽  
P.S. Bindraban ◽  
H. Van Keulen

<p>Water and fertilizer scarcity amid the increasing need of rice production challenges today’s agriculture. Integrated crop management (ICM) is a combination of water, crop, and nutrient management that optimizes the synergistic interaction of these components aiming at improving resource use efficiency, i.e. high productivity of water, land, and labor. The objectives of the study were to investigate the effects of crop establishment method, organic matter amendment, NPK management, and water management on yield of lowland rice. Five series of experiments were conducted at Sukamandi and Kuningan Experimental Stations, West Java. The first experiment was focused on crop establishment method, i.e. plant spacing and number of seedlings per hill. The second, third, and fourth experiments were directed to study the effect of NPK and organic matter applications on rice yield. The fifth experiments was designed to evaluate the effect of water management on rice yield. Results showed that 20 cm x 20 cm plant spacing resulted in the highest grain yield for the new plant type rice varieties. Organic matter and P fertilizer application did not significantly affect grain yield, but the yield response to P fertilization tended to be stronger with organic matter amendment. Split P application did not significantly increase grain yield. The use of a scale 4 leaf color chart reading resulted in a considerable N fertilizer saving without compromising rice yield. Intermittent irrigation technique saved water up to 55% without affecting yields, resulting in a 2-3 times higher water productivity.</p>


HortScience ◽  
2004 ◽  
Vol 39 (6) ◽  
pp. 1319-1323 ◽  
Author(s):  
Edmund J. Ogbuchiekwe ◽  
Milton E. McGiffen ◽  
Mathieu Ngouajio

Economic analysis compared the returns of cropping systems and management practices for production of fall lettuce (Lactuca sativa L.) and spring cantaloupe (Cucumis melo) following summer cover crops. The cover crop treatments included: cowpea [Vigna unguiculata (L.) Walp.] incorporated into the soil in the fall, cowpea used as mulch in the fall, sorghum sudangrass [Sorghum bicolor (L.) Moench] incorporated into the soil in the fall, and a bare ground control. Lettuce and cantaloupe were managed using conventional, integrated, and organic practices. The effect of each cropping system and management practice on crop yield, cost of production and net return was determined. In 1999 and 2000, yield and net return were greatest for cantaloupe and lettuce when the cowpea cover crop was incorporated into the soil before planting. The effect of crop management practice varied with type of cover crop. When lettuce was planted into cowpea-incorporated treatment in 1999, conventional management had the highest cash return followed by integrated crop management. In 2000, organically-grown lettuce after cowpea incorporated had the highest net return followed by integrated crop management grown under cowpea incorporated treatments. In 1999 and 2000, integrated cantaloupe following cowpea-incorporated treatment had the highest yield and cash-return. A 20% price premium for organic produce increased the net returns for the organic-grown lettuce and cantaloupe. Organic lettuce following cowpea-incorporated treatments produced a high net of $2,516/ha in 1999 and $5,971/ha in 2000. The net returns due to 20% organic premium price varied between 1999 and 2000 in cantaloupe production. They were highest for organic cantaloupe after bareground with a net return of $4,395 in 1999 and $3,148 in 2000 for organic cantaloupe after sudangrass.


Author(s):  
A. K. Tripathi

The frontline demonstrations were conducted on 45 farmer's fields in the five adopted villages of Bundelkhand region of Madhya Pradesh during rabi seasons of 2010 to 2012 in rainfed condition on medium to heavy soil with medium fertility status under blackgram − lentil cropping system to study the productivity enhancement of lentil through improved production technologies. The results revealed that integrated crop management practices reduced the wilt disease incidence in lentil from 20.7 to 4.9 per cent (76.3 per cent), spray of systemic insecticide imidacloprid 17.8 SL reduced the aphid population from 17.0 to 7.6 per plant (55.2 per cent) in various years. The average 22- 27 pods per plant were obtained under improved technology over to farmer's practices (17-21). The seed yields of lentil under improved technology ranged between 5.02 to 10.5 q ha-1 with average yield of 8.63 q ha-1 which was 30.5 per cent higher over the farmer's practice (6.61 q ha-1). However, maximum average net returns (Rs.21666 ha-1) as well as benefit cost ratio (3.47) were recorded under improved technologies as compared to farmer's practice (Rs.15278 ha-1 and 2.96).


2016 ◽  
Vol 155 (1) ◽  
pp. 1-17 ◽  
Author(s):  
J. M. FINNAN ◽  
J. SPINK

SUMMARYThe optimization of management practices for oats is hindered by a lack of knowledge of the critical phenological phases at which management should be focussed. The objective of the present review was to identify the yield-limiting phases in the growth of the oat crop in order to optimize management and to maximize yield. The methodology employed was to identify characteristics associated with either the pre-anthesis grain number determination phase or with the post-anthesis grain filling phase. Characteristics associated with the pre-anthesis phase were identified as a positive linear relationship between yield and grain number, in addition to insensitivity of grain weight to changes in assimilate supply. Characteristics associated with the post-anthesis grain filling phase were identified as an absence of a relationship between yield and sink size (grain number) and changes in grain weight in response to changes in assimilate supply. Data was taken from published literature. Yields of both winter- and spring-sown hulled oats increased linearly with grain number showing a strong influence of grain number on yield. Grain weight of both winter- and spring-hulled oats, however, decreased with increasing grain number suggesting that competition for assimilates may exist at high grain number. Further evidence of the influence of assimilate supply on grain yield was obtained from several studies which showed that yield increased with leaf area duration as well as from studies where grain weight was found to decrease after reductions in assimilate supply per grain, whereas grain weight increased when assimilate supply to grain was increased. Oat crops also feature a grain abortion mechanism when assimilate supply is constrained. Yield of naked oats increased with grain number before reaching a plateau, a trend which suggests source limitation at high grain numbers. The available evidence suggests that yield is primarily determined by grain number determination but that grain yield is also potentially limited by assimilate availability in the post-anthesis period. It is recommended that crop management strategies for oats should aim both to increase grain number in the pre-anthesis period but also prolong the grain filling period after anthesis. Such a post-anthesis strategy should both reduce the possibility of yield being limited by assimilate availability and compensate for the production of smaller grains at higher grain numbers.


2018 ◽  
Vol 229 ◽  
pp. 103-114 ◽  
Author(s):  
Alexander M. Stuart ◽  
Krishna P. Devkota ◽  
Takahiro Sato ◽  
Anny Ruth P. Pame ◽  
Carlito Balingbing ◽  
...  

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